Authentication Authorization and Accounting Configuration Guide Cisco IOS XE Release 3S
Per VRF AAA
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Contents

Per VRF AAA

The Per VRF AAA feature allows ISPs to partition authentication, authorization, and accounting (AAA) services on the basis of Virtual Private Network (VPN) routing and forwarding (VRF) instances, allowing their customers to control some of their own AAA services.

The list of servers in server groups is extended to include the definitions of private servers in addition to references to the hosts in the global configuration, allowing access to both customer servers and global service provider servers simultaneously.

In Cisco IOS XE Release 2.4 and later releases, a customer template can be used, which may be stored either locally or remotely, and AAA services can be performed on the information that is stored in the customer template. This feature is referred to as the Dynamic Per VRF AAA feature.

Prerequisites for Per VRF AAA

Before configuring the Per VRF AAA feature, AAA must be enabled. See “How to Configure Per VRF AAA” section on page 6 for more information.

Restrictions for Per VRF AAA

  • This feature is supported only for RADIUS servers.
  • Operational parameters should be defined once per VRF rather than set per server group, because all functionality must be consistent between the network access server (NAS) and the AAA servers.
  • The ability to configure a customer template either locally or remotely is available only for Cisco IOS XE Release 2.4 and later releases.

Information About Per VRF AAA

When you use the Per VRF AAA feature, AAA services can be based on VRF instances. This feature permits the Provider Edge (PE) or Virtual Home Gateway (VHG) to communicate directly with the customer’s RADIUS server, which is associated with the customer’s Virtual Private Network (VPN), without having to go through a RADIUS proxy. Thus, ISPs can scale their VPN offerings more efficiently because they no longer have to use RADIUS proxies and ISPs can also provide their customers with additional flexibility.

How Per VRF AAA Works

To support AAA on a per customer basis, some AAA features must be made VRF aware. That is, ISPs must be able to define operational parameters--such as AAA server groups, method lists, system accounting, and protocol-specific parameters--and bind those parameters to a particular VRF instance. Defining and binding the operational parameters can be accomplished using one or more of the following methods:

  • Virtual private dialup network (VPDN) virtual template or dialer interfaces that are configured for a specific customer
  • Locally defined customer templates--Per VPN with customer definitions. The customer template is stored locally on the VHG. This method can be used to associate a remote user with a specific VPN based on the domain name or dialed number identification service (DNIS) and provide the VPN-specific configuration for virtual access interface and all operational parameters for the customer AAA server.
  • Remotely defined customer templates--Per VPN with customer definitions that are stored on the service provider AAA server in a RADIUS profile. This method is used to associate a remote user with a specific VPN based on the domain name or DNIS and provide the VPN-specific configuration for the virtual access interface and all operational parameters for the AAA server of the customer.

Note

The ability to configure locally or remotely defined customer templates is available only with Cisco IOS XE Release 2.4 and later releases.

AAA Accounting Records

The Cisco implementation of AAA accounting provides “start” and “stop” record support for calls that have passed user authentication. Start and stop records are necessary for users employing accounting records to manage and monitor their networks.

New Vendor-Specific Attributes

The Internet Engineering Task Force (IETF) draft standard specifies a method for communicating vendor-specific information between the network access server and the RADIUS server by using the vendor-specific attribute (VSA) attribute 26. Attribute 26 encapsulates VSAs, thereby, allowing vendors to support their own extended attributes otherwise not suitable for general use.

The Cisco RADIUS implementation supports one vendor-specific option using the format recommended in the specification. Cisco’s vendor-ID is 9, and the supported option has vendor-type 1, which is named “cisco-avpair.” The value is a string of the following format: 

protocol : attribute sep value *

“Protocol” is a value of the Cisco “protocol” attribute for a particular type of authorization. “Attribute” and “value” are an appropriate attribute-value (AV) pair defined in the Cisco TACACS+ specification, and “sep” is “=” for mandatory attributes and “*” for optional attributes. This format allows the full set of features available for TACACS+ authorization to be used also for RADIUS.

The table below summarizes the VSAs that are now supported with Per VRF AAA.

Table 1 VSAs Supported with Per VRF AAA

VSA Name

Value Type

Description

Note   

Each VSA must have the prefix “template:” before the VSA name, unless a different prefix is explicitly stated.

account-delay

string

This VSA must be “on.” The functionality of this VSA is equal to the aaa accounting delay-startcommand for the customer template.

account-send-stop

string

This VSA must be “on.” The functionality of this VSA is equal to the aaa accounting send stop-record authenticationcommand with the failure keyword.

account-send-success-remote

string

This VSA must be “on.” The functionality of this VSA is equal to the aaa accounting send stop-record authenticationcommand with the success keyword.

attr-44

string

This VSA must be “access-req.” The functionality of this VSA is equal to the radius-server attribute 44 include-in-access-req command.

ip-addr

string

This VSA specifies the IP address, followed by the mask that the router uses to indicate its own IP address and mask in negotiation with the client; for example, ip-addr=192.168.202.169 255.255.255.255

ip-unnumbered

string

This VSA specifies the name of an interface on the router. The functionality of this VSA is equal to the ip unnumbered command, which specifies an interface name such as “Loopback 0.”

ip-vrf

string

This VSA specifies which VRF will be used for the packets of the end user. This VRF name should match the name that is used on the router via the ip vrf forwarding command.

peer-ip-pool

string

This VSA specifies the name of an IP address pool from which an address will be allocated for the peer. This pool should be configured using the ip local poolcommand or should be automatically downloadable via RADIUS.

ppp-acct-list

string

This VSA defines the accounting method list that is to be used for PPP sessions.

The VSA syntax is as follows: “ppp-acct-list=[start-stop | stop-only | none] group X [group Y] [broadcast].” It is equal to the aaa accounting network mylist command functionality.

The user must specify at least one of the following options: start-stop, stop-only, or none. If either start-stop or stop-only is specified, the user must specify at least one, but not more than four, group arguments. Each group name must consist of integers. The servers in the group should have already been identified in the access-accept via the VSA “rad-serv.” After each group has been specified, the user can specify the broadcast option

ppp-authen-list

string

This VSA defines which authentication method list is to be used for PPP sessions and, if more than one method is specified, in what order the methods should be used.

The VSA syntax is as follows: “ppp-authen-list=[groupX | local | local-case | none | if-needed],” which is equal to the aaa authentication ppp mylist command functionality.

The user must specify at least one, but no more than four, authentication methods. If a server group is specified, the group name must be an integer. The servers in the group should have already been identified in the access-accept via the VSA “rad-serv.”

ppp-authen-type

string

This VSA allows the end user to specify at least one of the following authentication types: pap, chap, eap, ms-chap, ms-chap-v2, any, or a combination of the available types that is separated by spaces.

The end user will be permitted to log in using only the methods that are specified in this VSA.

PPP will attempt these authentication methods in the order presented in the attribute.

ppp-author-list

string

This VSA defines the authorization method list that is to be used for PPP sessions. It indicates which methods will be used and in what order.

The VSA syntax is as follows: “ppp-author-list=[groupX] [local] [if-authenticated] [none],” which is equal to the aaa authorization network mylistcommand functionality.

The user must specify at least one, but no more than four, authorization methods. If a server group is specified, the group name must be an integer. The servers in the group should have already been identified in the access-accept via the VSA “rad-serv.”

Note   

The RADIUS VSAs--rad-serv, rad-serv-filter, rad-serv-source-if, and rad-serv-vrf--must have the prefix “aaa:” before the VSA name.

rad-serv

string

This VSA indicates the IP address, key, timeout, and retransmit number of a server, as well as the group of the server.

The VSA syntax is as follows: “rad-serv=a.b.c.d [key SomeKey] [auth-port X] [acct-port Y] [retransmit V] [timeout W].” Other than the IP address, all parameters are optional and can be issued in any order. If the optional parameters are not specified, their default values will be used.

The key cannot contain any spaces; for “retransmit V,” “V” can range from 1-100; for “timeout W,” the “W” can range from 1-1000.

rad-serv-filter

string

The VSA syntax is as follows: “rad-serv-filter=authorization | accounting-request | reply-accept | reject-filtername.” The filtername must be defined via the radius-server attribute list filtername command.

Note   

This VSA is supported in Cisco IOS XE Release 2.3 and later releases.

rad-serv-source-if

string

This VSA specifies the name of the interface that is used for transmitting RADIUS packets. The specified interface must match the interface configured on the router.

rad-serv-vrf

string

This VSA specifies the name of the VRF that is used for transmitting RADIUS packets. The VRF name should match the name that was specified via the ip vrf forwarding command.

VRF Aware Framed-Routes

In Cisco IOS XE Release 2.3 and later, the Cisco ASR 1000 Series Aggregation Services Routers support VRF aware framed-routes. No configuration is required to enable support for this feature. Framed-routes are automatically detected and if the framed-route is part of a VRF associated with an interface, the rout is applied accordingly.

How to Configure Per VRF AAA

Configuring Per VRF AAA

Configuring AAA

To enable AAA you need to complete the following steps.

SUMMARY STEPS

    1.    enable

    2.    configure terminal

    3.    aaa new-model


DETAILED STEPS
     Command or ActionPurpose
    Step 1 enable


    Example:
    Router> enable
     

    Enables privileged EXEC mode.

    • Enter your password if prompted.
     
    Step 2 configure terminal


    Example:
    Router# configure terminal
     

    Enters global configuration mode.

     
    Step 3 aaa new-model


    Example:
    Router(config)# aaa new-model
     

    Enables AAA globally.

     

    Configuring Server Groups

    To configure server groups you need to complete the following steps.

    SUMMARY STEPS

      1.    enable

      2.    configure terminal

      3.    aaa new-model

      4.    aaa group server radius groupname

      5.    server-private ip-address [auth-port port-number | acct-port port-number] [non-standard] [timeout seconds] [retransmit retries] [key string]

      6.    exit


    DETAILED STEPS
       Command or ActionPurpose
      Step 1 enable


      Example:
      Router> enable
       

      Enables privileged EXEC mode.

      • Enter your password if prompted.
       
      Step 2 configure terminal


      Example:
      Router# configure terminal
       

      Enters global configuration mode.

       
      Step 3 aaa new-model


      Example:
      Router(config)# aaa new-model
       

      Enables AAA globally.

       
      Step 4 aaa group server radius groupname


      Example:
      Router(config)# aaa group server radius v2.44.com
       

      Groups different RADIUS server hosts into distinct lists and distinct methods. Enters server-group configuration mode.

       
      Step 5 server-private ip-address [auth-port port-number | acct-port port-number] [non-standard] [timeout seconds] [retransmit retries] [key string]


      Example:
      Router(config-sg-radius)# server-private 10.10.130.2 auth-port 1600 key ww
       

      Configures the IP address of the private RADIUS server for the group server.

      Note   

      If private server parameters are not specified, global configurations will be used. If global configurations are not specified, default values will be used.

       
      Step 6 exit


      Example:
      Router(config-sg-radius)# exit
       

      Exits from server-group configuration mode; returns to global configuration mode.

       

      Configuring Authentication Authorization and Accounting for Per VRF AAA

      To configure authentication, authorization, and accounting for Per VRF AAA, you need to complete the following steps.

      SUMMARY STEPS

        1.    enable

        2.    configure terminal

        3.    aaa new-model

        4.    aaa authentication ppp {default | list-name} method1 [method2...]

        5.    aaa authorization {network | exec | commands level | reverse-access | configuration}{default | list-name} method1 [method2...]

        6.    aaa accounting system default [vrf vrf-name] {start-stop | stop-only | none} [broadcast] group groupname

        7.    aaa accounting delay-start [vrf vrf-name]

        8.    aaa accounting send stop-record authentication {failure | success remote-server} [vrf vrf-name]


      DETAILED STEPS
         Command or ActionPurpose
        Step 1 enable


        Example:
        Router> enable
         

        Enables privileged EXEC mode.

        • Enter your password if prompted.
         
        Step 2 configure terminal


        Example:
        Router# configure terminal
         

        Enters global configuration mode.

         
        Step 3 aaa new-model


        Example:
        Router(config)# aaa new-model
         

        Enables AAA globally.

         
        Step 4 aaa authentication ppp {default | list-name} method1 [method2...]


        Example:
        Router(config)# aaa authentication ppp method_list_v2.44.com group v2.44.com
         

        Specifies one or more AAA authentication methods for use on serial interfaces that are running PPP.

         
        Step 5 aaa authorization {network | exec | commands level | reverse-access | configuration}{default | list-name} method1 [method2...]


        Example:
        Router(config)# aaa authorization network method_list_v2.44.com group v2.44.com
         

        Sets parameters that restrict user access to a network.

         
        Step 6 aaa accounting system default [vrf vrf-name] {start-stop | stop-only | none} [broadcast] group groupname


        Example:
        Router(config)# aaa accounting system default vrf v2.44.com start-stop group v2.44.com
         

        Enables AAA accounting of requested services for billing or security purposes when you use RADIUS.

         
        Step 7 aaa accounting delay-start [vrf vrf-name]


        Example:
        Router(config)# aaa acounting delay-start vrf v2.44.com
         

        Displays generation of the start accounting records until the user IP address is established.

         
        Step 8 aaa accounting send stop-record authentication {failure | success remote-server} [vrf vrf-name]


        Example:
        Router(config)# aaa accounting send stop-record authentication failure vrf v2.44.com
         

        Generates accounting stop records.

        When using the failure keyword a “stop” record will be sent for calls that are rejected during authentication.

        When using the success keyword a “stop” record will be sent for calls that meet one of the following criteria:

        • Calls that are authenticated by a remote AAA server when the call is terminated.
        • Calls that are not authenticated by a remote AAA server and the start record has been sent.
        • Calls that are successfully established and then terminated with the “stop-only” aaa accounting configuration.
        Note   

        The success and remote-server keywords are available in Cisco IOS XE Release 2.4 and later releases.

         

        Configuring RADIUS-Specific Commands for Per VRF AAA

        To configure RADIUS-specific commands for Per VRF AAA you need to complete the following steps.

        SUMMARY STEPS

          1.    enable

          2.    configure terminal

          3.    ip radius source-interface subinterface-name [vrf vrf-name]

          4.    radius-server attribute 44 include-in-access-req [vrf vrf-name]


        DETAILED STEPS
           Command or ActionPurpose
          Step 1 enable


          Example:
          Router> enable
           

          Enables privileged EXEC mode.

          • Enter your password if prompted.
           
          Step 2 configure terminal


          Example:
          Router# configure terminal
           

          Enters global configuration mode.

           
          Step 3 ip radius source-interface subinterface-name [vrf vrf-name]


          Example:
          Router(config)# ip radius source-interface loopback55
           

          Forces RADIUS to use the IP address of a specified interface for all outgoing RADIUS packets and enables the specification on a per-VRF basis.

           
          Step 4 radius-server attribute 44 include-in-access-req [vrf vrf-name]


          Example:
          Router(config)# radius-server attribute 44 include-in-access-req vrf v2.44.com
           

          Sends RADIUS attribute 44 in access request packets before user authentication and enables the specification on a per-VRF basis.

           

          Configuring Interface-Specific Commands for Per VRF AAA

          To configure interface-specific commands for Per VRF AAA, you need to complete the following steps.

          SUMMARY STEPS

            1.    enable

            2.    configure terminal

            3.    interface type number [name-tag]

            4.    ip vrf forwarding vrf-name

            5.    ppp authentication {protocol1 [protocol2...]} listname

            6.    ppp authorization list-name

            7.    ppp accounting default

            8.    exit


          DETAILED STEPS
             Command or ActionPurpose
            Step 1 enable


            Example:
            Router> enable
             

            Enables privileged EXEC mode.

            • Enter your password if prompted.
             
            Step 2 configure terminal


            Example:
            Router# configure terminal
             

            Enters global configuration mode.

             
            Step 3 interface type number [name-tag]


            Example:
            Router(config)# interface loopback11
             

            Configures an interface type and enters interface configuration mode.

             
            Step 4 ip vrf forwarding vrf-name


            Example:
            Router(config-if)# ip vrf forwarding v2.44.com
             

            Associates a VRF with an interface.

             
            Step 5 ppp authentication {protocol1 [protocol2...]} listname


            Example:
            Router(config-if)# ppp authentication chap callin V2_44_com
             

            Enables Challenge Handshake Authentication Protocol (CHAP) or Password Authentication Protocol (PAP) or both and specifies the order in which CHAP and PAP authentication are selected on the interface.

             
            Step 6 ppp authorization list-name


            Example:
            Router(config-if)# ppp authorization V2_44_com
             

            Enables AAA authorization on the selected interface.

             
            Step 7 ppp accounting default


            Example:
            Router(config-if)# ppp accounting default
             

            Enables AAA accounting services on the selected interface.

             
            Step 8 exit


            Example:
            Router(config)# exit
             

            Exits interface configuration mode.

             

            Configuring Per VRF AAA Using Local Customer Templates

            Configuring AAA

            Perform the tasks as outlined in the Configuring Per VRF AAA.

            Configuring Server Groups

            Perform the tasks as outlined in the Configuring Server Groups.

            Configuring Authentication Authorization and Accounting for Per VRF AAA

            Perform the tasks as outlined in the Configuring Authentication Authorization and Accounting for Per VRF AAA.

            Configuring Authorization for Per VRF AAA with Local Customer Templates

            To configure authorization for Per VRF AAA with local templates, you need to complete the following steps.

            SUMMARY STEPS

              1.    enable

              2.    configure terminal

              3.    aaa authorization template

              4.    aaa authorization network default local


            DETAILED STEPS
               Command or ActionPurpose
              Step 1 enable


              Example:
              Router> enable
               

              Enables privileged EXEC mode.

              • Enter your password if prompted.
               
              Step 2 configure terminal


              Example:
              Router# configure terminal
               

              Enters global configuration mode.

               
              Step 3 aaa authorization template


              Example:
              Router(config)# aaa authorization template
               

              Enables the use of local or remote templates.

               
              Step 4 aaa authorization network default local


              Example:
              Router(config)# aaa authorization network default local
               

              Specifies local as the default method for authorization.

               

              Configuring Local Customer Templates

              To configure local customer templates, you need to complete the following steps.

              SUMMARY STEPS

                1.    enable

                2.    configure terminal

                3.    vpdn search-order domain

                4.    template name [default | exit | multilink | no | peer | ppp]

                5.    peer default ip address pool pool-name

                6.    ppp authentication {protocol1 [protocol2...]} [if-needed] [list-name | default] [callin] [one-time]

                7.    ppp authorization [default | list-name]

                8.    aaa accounting {auth-proxy | system | network | exec | connection | commands level} {default | list-name} [vrf vrf-name] {start-stop | stop-only | none} [broadcast] group groupname

                9.    exit


              DETAILED STEPS
                 Command or ActionPurpose
                Step 1 enable


                Example:
                Router> enable
                 

                Enables privileged EXEC mode.

                • Enter your password if prompted.
                 
                Step 2 configure terminal


                Example:
                Router# configure terminal
                 

                Enters global configuration mode.

                 
                Step 3 vpdn search-order domain


                Example:
                Router (config)# vpdn search-order domain
                 

                Looks up the profiles based on domain.

                 
                Step 4 template name [default | exit | multilink | no | peer | ppp]


                Example:
                Router (config)# template v2.44.com
                 

                Creates a customer profile template and assigns a unique name that relates to the customer that will be receiving it.

                Enters template configuration mode.

                Note   

                Steps 5, 6, and 7 are optional. Enter multilink, peer, and ppp keywords appropriate to customer application requirements.

                 
                Step 5 peer default ip address pool pool-name


                Example:
                Router(config-template)# peer default ip address pool v2_44_com_pool
                 

                (Optional) Specifies that the customer profile to which this template is attached will use a local IP address pool with the specified name.

                 
                Step 6 ppp authentication {protocol1 [protocol2...]} [if-needed] [list-name | default] [callin] [one-time]


                Example:
                Router(config-template)# ppp authentication chap
                 

                (Optional) Sets the PPP link authentication method.

                 
                Step 7 ppp authorization [default | list-name]


                Example:
                Router(config-template)# ppp authorization v2_44_com
                 

                (Optional) Sets the PPP link authorization method.

                 
                Step 8 aaa accounting {auth-proxy | system | network | exec | connection | commands level} {default | list-name} [vrf vrf-name] {start-stop | stop-only | none} [broadcast] group groupname


                Example:
                Router(config-template)# aaa accounting v2_44_com
                 

                (Optional) Enables AAA operational parameters for the specified customer profile.

                 
                Step 9 exit


                Example:
                Router(config-template)# exit
                 

                Exits from template configuration mode; returns to global configuration mode.

                 

                Configuring Per VRF AAA Using Remote Customer Templates

                Configuring AAA

                Perform the tasks as outlined in the Configuring Per VRF AAA.

                Configuring Server Groups

                Perform the tasks as outlined in the Configuring Server Groups.

                Configuring Authentication for Per VRF AAA with Remote Customer Profiles

                To configure authentication for Per VRF AAA with remote customer profiles, you need to perform the following steps.

                SUMMARY STEPS

                  1.    enable

                  2.    configure terminal

                  3.    aaa authentication ppp {default | list-name} method1 [method2...]

                  4.    aaa authorization {network | exec | commands level | reverse-access | configuration} {default | list-name} [[method1 [method2...]


                DETAILED STEPS
                   Command or ActionPurpose
                  Step 1 enable


                  Example:
                  Router> enable
                   

                  Enables privileged EXEC mode.

                  • Enter your password if prompted.
                   
                  Step 2 configure terminal


                  Example:
                  Router# configure terminal
                   

                  Enters global configuration mode.

                   
                  Step 3 aaa authentication ppp {default | list-name} method1 [method2...]


                  Example:
                  Router(config)# ppp authentication ppp default group radius
                   

                  Specifies one or more authentication, authorization, and accounting (AAA) authentication methods for use on serial interfaces that are running PPP.

                   
                  Step 4 aaa authorization {network | exec | commands level | reverse-access | configuration} {default | list-name} [[method1 [method2...]


                  Example:
                  Router(config)# aaa authorization network default group sp
                   

                  Sets parameters that restrict user access to a network.

                   

                  Configuring Authorization for Per VRF AAA with Remote Customer Profiles

                  To configuring authorization for Per VRF AAA with remote customer profiles, you need to perform the following step.

                  SUMMARY STEPS

                    1.    enable

                    2.    configure terminal

                    3.    aaa authorization template

                    4.    aaa authorization {network | exec | commands level | reverse-access | configuration} {default | list-name} [[method1 [method2...]


                  DETAILED STEPS
                     Command or ActionPurpose
                    Step 1 enable


                    Example:
                    Router> enable
                     

                    Enables privileged EXEC mode.

                    • Enter your password if prompted.
                     
                    Step 2 configure terminal


                    Example:
                    Router# configure terminal
                     

                    Enters global configuration mode.

                     
                    Step 3 aaa authorization template


                    Example:
                    Router(config)# aaa authorization template
                     

                    Enables use of local or remote templates.

                     
                    Step 4 aaa authorization {network | exec | commands level | reverse-access | configuration} {default | list-name} [[method1 [method2...]


                    Example:
                    Router(config)# aaa authorization network default sp
                     

                    Specifies the server group that is named as the default method for authorization.

                     

                    Configuring the RADIUS Profile on the SP RADIUS Server

                    Configure the RADIUS profile on the Service Provider (SP) RADIUS server. See the Per VRF AAA Using a Remote RADIUS Customer Template Example for an example of how to update the RADIUS profile.

                    Verifying VRF Routing Configurations

                    To verify VRF routing configurations, you need to complete the following steps:

                    SUMMARY STEPS

                      1.    enable

                      2.    configure terminal

                      3.    show ip route vrf vrf-name


                    DETAILED STEPS
                       Command or ActionPurpose
                      Step 1 enable


                      Example:
                      Router> enable
                       

                      Enables privileged EXEC mode.

                      • Enter your password if prompted.
                       
                      Step 2 configure terminal


                      Example:
                      Router# configure terminal
                       

                      Enters global configuration mode.

                       
                      Step 3 show ip route vrf vrf-name

                      Example:
                      Router(config)# show ip route vrf northvrf
                       

                      Displays the IP routing table associated with a VRF.

                       

                      Troubleshooting Per VRF AAA Configurations

                      To troubleshoot the Per VRF AAA feature, use at least one of the following commands in EXEC mode:

                      Command

                      Purpose

                      		 
                      Router# debug aaa accounting

                      Displays information on accountable events as they occur.

                      		 
                      Router# debug aaa authentication

                      Displays information on AAA authentication.

                      		 
                      Router# debug aaa authorization

                      Displays information on AAA authorization.

                      		 
                      Router# debug ppp negotiation

                      Displays information on traffic and exchanges in an internetwork implementing PPP.

                      		 
                      Router# debug radius

                      Displays information associated with RADIUS.

                      		 
                      Router# debug vpdn event

                      Displays Layer 2 Transport Protocol (L2TP) errors and events that are a part of normal tunnel establishment or shutdown for VPNs. 

                      Router# debug vpdn error

                      Displays debug traces for VPN.

                      Configuration Examples for Per VRF AAA

                      Per VRF Configuration Examples

                      Per VRF AAA Example

                      The following example shows how to configure the Per VRF AAA feature using a AAA server group with associated private servers: 

                      aaa new-model 
aaa authentication ppp method_list_v1.55.com group v1.55.com 
aaa authorization network method_list_v1.55.com group v1.55.com 
aaa accounting network method_list_v1.55.com start-stop group v1.55.com 
aaa accounting system default vrf v1.55.com start-stop group v1.55.com 
aaa accounting delay-start vrf v1.55.com 
aaa accounting send stop-record authentication failure vrf v1.55.com 
aaa group server radius v1.55.com 
    server-private 10.10.132.4 auth-port 1645 acct-port 1646 key ww 
    ip vrf forwarding v1.55.com 
ip radius source-interface loopback55
radius-server attribute 44 include-in-access-req vrf v1.55.com

                      Per VRF AAA Using a Locally Defined Customer Template Example

                      The following example shows how to configure the Per VRF AAA feature using a locally defined customer template with a AAA server group that has associated private servers:

                      aaa new-model 
aaa authentication ppp method_list_v1.55.com group v1.55.com 
aaa authorization network method_list_v1.55.com group v1.55.com 
aaa authorization network default local
aaa authorization template
aaa accounting network method_list_v1.55.com start-stop group v1.55.com 
aaa accounting system default vrf v1.55.com start-stop group v1.55.com
aaa group server radius V1_55_com 
  server-private 10.10.132.4 auth-port 1645 acct-port 1646 key ww 
  ip vrf forwarding V1.55.com 
template V1.55.com
  peer default ip address pool V1_55_com_pool
  ppp authentication chap callin V1_55_com 
  ppp authorization V1_55_com 
  ppp accounting V1_55_com 
  aaa accounting delay-start 
  aaa accounting send stop-record authentication failure 
  radius-server attribute 44 include-in-access-req
  ip vrf forwarding v1.55.com
  ip radius source-interface Loopback55

                      Per VRF AAA Using a Remote RADIUS Customer Template Example

                      The following examples shows how to configure the Per VRF AAA feature using a remotely defined customer template on the SP RADIUS server with a AAA server group that has associated private servers: 

                      aaa new-model
aaa authentication ppp default group radius 
aaa authorization template 
aaa authorization network default group sp 
aaa group server radius sp
   server 10.3.3.3
radius-server host 10.3.3.3 auth-port 1645 acct-port 1646 key sp_key

                      The following RADIUS server profile is configured on the SP RADIUS server: 

                      cisco-avpair = "aaa:rad-serv#1=10.10.132.4 key ww" 
cisco-avpair = "aaa:rad-serv-vrf#1=V1.55.com" 
cisco-avpair = "aaa:rad-serv-source-if#1=Loopback 55" 
cisco-avpair = "template:ppp-authen-list=group 1" 
cisco-avpair = "template:ppp-author-list=group 1" 
cisco-avpair = "template:ppp-acct-list= start-stop group 1" 
cisco-avpair = "template:account-delay=on" 
cisco-avpair = "template:account-send-stop=on" 
cisco-avpair = "template:rad-attr44=access-req" 
cisco-avpair = "template:peer-ip-pool=V1.55-pool"
cisco-avpair = "template:ip-vrf=V1.55.com"
cisco-avpair = "template:ip-unnumbered=Loopback 55"
framed-protocol = ppp 
service-type = framed

                      Customer Template Examples

                      Locally Configured Customer Template with RADIUS Attribute Screening and Broadcast Accounting Example

                      The following example shows how to create a locally configured template for a single customer, configuring additional features including RADIUS attribute screening and broadcast accounting:

                      aaa authentication ppp default local group radius
aaa authentication ppp V1_55_com group V1_55_com
aaa authorization template
aaa authorization network default local group radius
aaa authorization network V1_55_com group V1_55_com
aaa accounting network V1_55_com start-stop broadcast group V1_55_com group SP_AAA_server
aaa group server radius SP_AAA_server
 server 10.10.100.7 auth-port 1645 acct-port 1646
aaa group server radius V1_55_com
 server-private 10.10.132.4 auth-port 1645 acct-port 1646
 authorization accept min-author
 accounting accept usage-only
 ip vrf forwarding V1.55.com
ip vrf V1.55.com
 rd 1:55
 route-target export 1:55
 route-target import 1:55
template V1.55.com
 peer default ip address pool V1.55-pool
 ppp authentication chap callin V1_55_com
 ppp authorization V1_55_com
 ppp accounting V1_55_com
 aaa accounting delay-start 
 aaa accounting send stop-record authentication failure
 radius-server attribute 44 include-in-access-req
vpdn-group V1.55
 accept-dialin
  protocol l2tp
  virtual-template 13
 terminate-from hostname lac-lb-V1.55
 source-ip 10.10.104.12
 lcp renegotiation always
 l2tp tunnel password 7 060506324F41
interface Virtual-Template13
 ip vrf forwarding V1.55.com
 ip unnumbered Loopback55
 ppp authentication chap callin
 ppp multilink
ip local pool V1.55-pool 10.1.55.10 10.1.55.19 group V1.55-group
ip radius source-interface Loopback0
ip radius source-interface Loopback55 vrf V1.55.com
radius-server attribute list min-author
 attribute 6-7,22,27-28,242
radius-server attribute list usage-only
 attribute 1,40,42-43,46
radius-server host 10.10.100.7 auth-port 1645 acct-port 1646 key ww
radius-server host 10.10.132.4 auth-port 1645 acct-port 1646 key ww

                      Remotely Configured Customer Template with RADIUS Attribute Screening and Broadcast Accounting Example

                      The following example shows how to create a remotely configured template for a single customer, configuring additional features including RADIUS attribute screening and broadcast accounting:

                      aaa authentication ppp default local group radius
aaa authorization template
aaa authorization network default local group radius
ip vrf V1.55.com
 rd 1:55
 route-target export 1:55
 route-target import 1:55
vpdn-group V1.55
 accept-dialin
  protocol l2tp
  virtual-template 13
 terminate-from hostname lac-lb-V1.55
 source-ip 10.10.104.12
 lcp renegotiation always
 l2tp tunnel password 7 060506324F41
interface Virtual-Template13
 no ip address
 ppp authentication chap callin
 ppp multilink
ip local pool V1.55-pool 10.1.55.10 10.1.55.19 group V1.55-group
radius-server attribute list min-author
 attribute 6-7,22,27-28,242
radius-server attribute list usage-only
 attribute 1,40,42-43,46

                      The customer template is stored as a RADIUS server profile for v1.55.com.

                      cisco-avpair = "aaa:rad-serv#1=10.10.132.4 key ww"
cisco-avpair = "aaa:rad-serv-vrf#1=V1.55.com"
cisco-avpair = "aaa:rad-serv-source-if#1=Loopback 55"
cisco-avpair = "aaa:rad-serv#2=10.10.100.7 key ww"
cisco-avpair = "aaa:rad-serv-source-if#2=Loopback 0"
cisco-avpair = "template:ppp-authen-list=group 1"
cisco-avpair = "template:ppp-author-list=group 1"
cisco-avpair = "template:ppp-acct-list= start-stop group 1 group 2 broadcast"
cisco-avpair = "template:account-delay=on"
cisco-avpair = "template:account-send-stop=on"
cisco-avpair = "template:rad-attr44=access-req"
cisco-avpair = "aaa:rad-serv-filter#1=authorization accept min-author"
cisco-avpair = "aaa:rad-serv-filter#1=accounting accept usage-only" 
cisco-avpair = "template:peer-ip-pool=V1.55-pool"
cisco-avpair = "template:ip-vrf=V1.55.com"
cisco-avpair = "template:ip-unnumbered=Loopback 55"
framed-protocol = ppp
service-type = framed

                      AAA Accounting Stop Record Examples

                      The following AAA accounting stop record examples show how to configure the aaa accounting send stop-record authentication command to control the generation of “stop” records when the aaa accounting command is issued with the start-stop or stop-only keyword.


                      Note

                      The success and remote-server keywords are available in Cisco IOS XE Release 2.4 and later releases.

                      AAA Accounting Stop Record and Rejected Call Example

                      The following example shows the “stop” record being sent for a rejected call during authentication when the aaa accounting send stop-record authenticationcommand is issued with the success keyword.

                      Router# show running-config | include aaa
.
.
.
aaa new-model
aaa authentication ppp default group radius
aaa authorization network default local 
aaa accounting send stop-record authentication success remote-server 
aaa accounting network default start-stop group radius
Router#
*Jul  7 03:39:40.199: AAA/BIND(00000026): Bind i/f Virtual-Template2 
*Jul  7 03:39:40.199: ppp21 AAA/AUTHOR/LCP: Authorization succeeds trivially 
*Jul  7 03:39:42.199: RADIUS/ENCODE(00000026):Orig. component type = PPoE
*Jul  7 03:39:42.199: RADIUS:  AAA Unsupported     [156] 7   
*Jul  7 03:39:42.199: RADIUS:   30 2F 30 2F 
30                                   [0/0/0]
*Jul  7 03:39:42.199: RADIUS(00000026): Config NAS IP: 10.0.0.0
*Jul  7 03:39:42.199: RADIUS/ENCODE(00000026): acct_session_id: 55
*Jul  7 03:39:42.199: RADIUS(00000026): sending
*Jul  7 03:39:42.199: RADIUS/ENCODE: Best Local IP-Address 10.0.1.123 for 
Radius-Server 172.19.192.238
*Jul  7 03:39:42.199: RADIUS(00000026): Send Access-Request to 
172.19.192.238:2195 id 1645/14, len 94
*Jul  7 03:39:42.199: RADIUS:  authenticator A6 D1 6B A4 76 9D 52 CF - 33 5D 
16 BE AC 7E 5F A6
*Jul  7 03:39:42.199: RADIUS:  Framed-Protocol     [7]   6   
PPP                       [1]
*Jul  7 03:39:42.199: RADIUS:  User-Name           [1]   16  "user@example.com"
*Jul  7 03:39:42.199: RADIUS:  CHAP-Password       [3]   19  *
*Jul  7 03:39:42.199: RADIUS:  NAS-Port-Type       [61]  6   
Virtual                   [5]
*Jul  7 03:39:42.199: RADIUS:  NAS-Port            [5]   6   
0                         
*Jul  7 03:39:42.199: RADIUS:  NAS-Port-Id         [87]  9   "0/0/0/0"
*Jul  7 03:39:42.199: RADIUS:  Service-Type        [6]   6   
Framed                    [2]
*Jul  7 03:39:42.199: RADIUS:  NAS-IP-Address      [4]   6   
10.0.1.123                
*Jul  7 03:39:42.271: RADIUS: Received from id 1645/14 172.19.192.238:2195, 
Access-Accept, len 194
*Jul  7 03:39:42.271: RADIUS:  authenticator 30 AD FF 8E 59 0C E4 6C - BA 11 
23 63 81 DE 6F D7
*Jul  7 03:39:42.271: RADIUS:  Framed-Protocol     [7]   6   
PPP                       [1]
*Jul  7 03:39:42.275: RADIUS:  Service-Type        [6]   6   
Framed                    [2]
*Jul  7 03:39:42.275: RADIUS:  Vendor, Cisco       [26]  26  
*Jul  7 03:39:42.275: RADIUS:   Cisco AVpair       [1]   20  "vpdn:tunnel-
id=lac"
*Jul  7 03:39:42.275: RADIUS:  Vendor, Cisco       [26]  29  
*Jul  7 03:39:42.275: RADIUS:   Cisco AVpair       [1]   23  "vpdn:tunnel-
type=l2tp"
*Jul  7 03:39:42.275: RADIUS:  Vendor, Cisco       [26]  30  
*Jul  7 03:39:42.275: RADIUS:   Cisco AVpair       [1]   24  "vpdn:gw-
password=cisco"
*Jul  7 03:39:42.275: RADIUS:  Vendor, Cisco       [26]  31  
*Jul  7 03:39:42.275: RADIUS:   Cisco AVpair       [1]   25  "vpdn:nas-
password=cisco"
*Jul  7 03:39:42.275: RADIUS:  Vendor, Cisco       [26]  34  
*Jul  7 03:39:42.275: RADIUS:   Cisco AVpair       [1]   28  "vpdn:ip-
addresses=10.0.0.2"
*Jul  7 03:39:42.275: RADIUS:  Service-Type        [6]   6   
Framed                    [2]
*Jul  7 03:39:42.275: RADIUS:  Framed-Protocol     [7]   6   
PPP                       [1]
*Jul  7 03:39:42.275: RADIUS(00000026): Received from id 1645/14
*Jul  7 03:39:42.275: ppp21 PPP/AAA: Check Attr: Framed-Protocol
*Jul  7 03:39:42.275: ppp21 PPP/AAA: Check Attr: service-type
*Jul  7 03:39:42.275: ppp21 PPP/AAA: Check Attr: tunnel-id
*Jul  7 03:39:42.275: ppp21 PPP/AAA: Check Attr: tunnel-type
*Jul  7 03:39:42.275: ppp21 PPP/AAA: Check Attr: gw-password
*Jul  7 03:39:42.275: ppp21 PPP/AAA: Check Attr: nas-password
*Jul  7 03:39:42.275: ppp21 PPP/AAA: Check Attr: ip-addresses
*Jul  7 03:39:42.275: ppp21 PPP/AAA: Check Attr: service-type
*Jul  7 03:39:42.275: ppp21 PPP/AAA: Check Attr: Framed-Protocol
*Jul  7 03:39:42.279: AAA/BIND(00000027): Bind i/f  
*Jul  7 03:39:42.279:  Tnl 21407 L2TP: O SCCRQ 
*Jul  7 03:39:42.279:  Tnl 21407 L2TP: O SCCRQ, flg TLS, ver 2, len 134, tnl 
0, ns 0, nr 0
         C8 02 00 86 00 00 00 00 00 00 00 00 80 08 00 00
         00 00 00 01 80 08 00 00 00 02 01 00 00 08 00 00
         00 06 11 30 80 09 00 00 00 07 6C 61 63 00 19 00
         00 00 08 43 69 73 63 6F 20 53 79 73 74 65 6D 73
         2C 20 49 6E 63 2E 80 ...
*Jul  7 03:39:49.279:  Tnl 21407 L2TP: O StopCCN 
*Jul  7 03:39:49.279:  Tnl 21407 L2TP: O StopCCN, flg TLS, ver 2, len 66, tnl 
0, ns 1, nr 0
         C8 02 00 42 00 00 00 00 00 01 00 00 80 08 00 00
         00 00 00 04 80 1E 00 00 00 01 00 02 00 06 54 6F
         6F 20 6D 61 6E 79 20 72 65 74 72 61 6E 73 6D 69
         74 73 00 08 00 09 00 69 00 01 80 08 00 00 00 09
         53 9F
*Jul  7 03:39:49.279: RADIUS/ENCODE(00000026):Orig. component type = PPoE
*Jul  7 03:39:49.279: RADIUS(00000026): Config NAS IP: 10.0.0.0
*Jul  7 03:39:49.279: RADIUS(00000026): sending
*Jul  7 03:39:49.279: RADIUS/ENCODE: Best Local IP-Address 10.0.1.123 for 
Radius-Server 172.19.192.238
*Jul  7 03:39:49.279: RADIUS(00000026): Send Accounting-Request to 
172.19.192.238:2196 id 1646/32, len 179
*Jul  7 03:39:49.279: RADIUS:  authenticator 0A 85 2F F0 65 6F 25 E1 - 97 54 
CC BF EA F7 62 89
*Jul  7 03:39:49.279: RADIUS:  Acct-Session-Id     [44]  10  "00000037"
*Jul  7 03:39:49.279: RADIUS:  Framed-Protocol     [7]   6   
PPP                       [1]
*Jul  7 03:39:49.279: RADIUS:  Tunnel-Medium-Type  [65]  6   
00:IPv4                   [1]
*Jul  7 03:39:49.279: RADIUS:  Tunnel-Client-Endpoi[66]  10  "10.0.0.1"
*Jul  7 03:39:49.279: RADIUS:  Tunnel-Server-Endpoi[67]  10  "10.0.0.2"
*Jul  7 03:39:49.283: RADIUS:  Tunnel-Type         [64]  6   
00:L2TP                   [3]
*Jul  7 03:39:49.283: RADIUS:  Acct-Tunnel-Connecti[68]  3   "0"
*Jul  7 03:39:49.283: RADIUS:  Tunnel-Client-Auth-I[90]  5   "lac"
*Jul  7 03:39:49.283: RADIUS:  User-Name           [1]   16  "user@example.com"
*Jul  7 03:39:49.283: RADIUS:  Acct-Authentic      [45]  6   
RADIUS                    [1]
*Jul  7 03:39:49.283: RADIUS:  Acct-Session-Time   [46]  6   
0                         
*Jul  7 03:39:49.283: RADIUS:  Acct-Input-Octets   [42]  6   
0                         
*Jul  7 03:39:49.283: RADIUS:  Acct-Output-Octets  [43]  6   
0                         
*Jul  7 03:39:49.283: RADIUS:  Acct-Input-Packets  [47]  6   
0                         
*Jul  7 03:39:49.283: RADIUS:  Acct-Output-Packets [48]  6   
0                         
*Jul  7 03:39:49.283: RADIUS:  Acct-Terminate-Cause[49]  6   nas-
error                 [9]
*Jul  7 03:39:49.283: RADIUS:  Acct-Status-Type    [40]  6   
Stop                      [2]
*Jul  7 03:39:49.283: RADIUS:  NAS-Port-Type       [61]  6   
Virtual                   [5]
*Jul  7 03:39:49.283: RADIUS:  NAS-Port            [5]   6   
0                         
*Jul  7 03:39:49.283: RADIUS:  NAS-Port-Id         [87]  9   "0/0/0/0"
*Jul  7 03:39:49.283: RADIUS:  Service-Type        [6]   6   
Framed                    [2]
*Jul  7 03:39:49.283: RADIUS:  NAS-IP-Address      [4]   6   
10.0.1.123                
*Jul  7 03:39:49.283: RADIUS:  Acct-Delay-Time     [41]  6   
0                         
*Jul  7 03:39:49.335: RADIUS: Received from id 1646/32 172.19.192.238:2196, 
Accounting-response, len 20
*Jul  7 03:39:49.335: RADIUS:  authenticator C8 C4 61 AF 4D 9F 78 07 - 94 2B 
44 44 17 56 EC 03

                      AAA Accounting Stop Record and Successful Call Example

                      The following example shows “start” and “stop” records being sent for a successful call when the aaa accounting send stop-record authentication command is issued with the failure keyword.

                      Router# show running-config | include aaa
 
.
.
.
aaa new-model 
aaa authentication ppp default group radius 
aaa authorization network default local 
aaa accounting send stop-record authentication failure 
aaa accounting network default start-stop group radius 
.
.
.
*Jul  7 03:28:31.543: AAA/BIND(00000018): Bind i/f Virtual-Template2 
*Jul  7 03:28:31.547: ppp14 AAA/AUTHOR/LCP: Authorization succeeds trivially 
*Jul  7 03:28:33.555: AAA/AUTHOR (0x18): Pick method list 'default'
*Jul  7 03:28:33.555: AAA/BIND(00000019): Bind i/f  
*Jul  7 03:28:33.555:  Tnl 5192 L2TP: O SCCRQ 
*Jul  7 03:28:33.555:  Tnl 5192 L2TP: O SCCRQ, flg TLS, ver 2, len 141, tnl 0, 
ns 0, nr 0
         C8 02 00 8D 00 00 00 00 00 00 00 00 80 08 00 00
         00 00 00 01 80 08 00 00 00 02 01 00 00 08 00 00
         00 06 11 30 80 10 00 00 00 07 4C 41 43 2D 74 75
         6E 6E 65 6C 00 19 00 00 00 08 43 69 73 63 6F 20
         53 79 73 74 65 6D 73 ...
*Jul  7 03:28:33.563:  Tnl 5192 L2TP: Parse  AVP 0, len 8, flag 0x8000 (M)
*Jul  7 03:28:33.563:  Tnl 5192 L2TP: Parse SCCRP
*Jul  7 03:28:33.563:  Tnl 5192 L2TP: Parse  AVP 2, len 8, flag 0x8000 (M)
*Jul  7 03:28:33.563:  Tnl 5192 L2TP: Protocol Ver 256
*Jul  7 03:28:33.563:  Tnl 5192 L2TP: Parse  AVP 3, len 10, flag 0x8000 (M)
*Jul  7 03:28:33.563:  Tnl 5192 L2TP: Framing Cap 0x0
*Jul  7 03:28:33.563:  Tnl 5192 L2TP: Parse  AVP 4, len 10, flag 0x8000 (M)
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Bearer Cap 0x0
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Parse  AVP 6, len 8, flag 0x0 
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Firmware Ver 0x1120
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Parse  AVP 7, len 16, flag 0x8000 (M)
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Hostname LNS-tunnel
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Parse  AVP 8, len 25, flag 0x0 
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Vendor Name Cisco Systems, Inc.
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Parse  AVP 9, len 8, flag 0x8000 (M)
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Assigned Tunnel ID 6897
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Parse  AVP 10, len 8, flag 0x8000 (M)
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Rx Window Size 20050
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Parse  AVP 11, len 22, flag 0x8000 (M)
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Chlng  
         81 13 03 F6 A8 E4 1D DD 25 18 25 6E 67 8C 7C 39
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Parse  AVP 13, len 22, flag 0x8000 (M)
*Jul  7 03:28:33.567:  Tnl 5192 L2TP: Chlng Resp  
         4D 52 91 DC 1A 43 B3 31 B4 F5 B8 E1 88 22 4F 41
*Jul  7 03:28:33.571:  Tnl 5192 L2TP: No missing AVPs in SCCRP
*Jul  7 03:28:33.571:  Tnl 5192 L2TP: I SCCRP, flg TLS, ver 2, len 157, tnl 
5192, ns 0, nr 1
contiguous pak, size 157
         C8 02 00 9D 14 48 00 00 00 00 00 01 80 08 00 00
         00 00 00 02 80 08 00 00 00 02 01 00 80 0A 00 00
         00 03 00 00 00 00 80 0A 00 00 00 04 00 00 00 00
         00 08 00 00 00 06 11 20 80 10 00 00 00 07 4C 4E
         53 2D 74 75 6E 6E 65 6C ...
*Jul  7 03:28:33.571:  Tnl 5192 L2TP: I SCCRP from LNS-tunnel
*Jul  7 03:28:33.571:  Tnl 5192 L2TP: O SCCCN  to LNS-tunnel tnlid 6897
*Jul  7 03:28:33.571:  Tnl 5192 L2TP: O SCCCN, flg TLS, ver 2, len 42, tnl 
6897, ns 1, nr 1
         C8 02 00 2A 1A F1 00 00 00 01 00 01 80 08 00 00
         00 00 00 03 80 16 00 00 00 0D 32 24 17 BC 6A 19
         B1 79 F3 F9 A9 D4 67 7D 9A DB
*Jul  7 03:28:33.571: uid:14 Tnl/Sn 5192/11 L2TP: O ICRQ to LNS-tunnel 6897/0
*Jul  7 03:28:33.571: uid:14 Tnl/Sn 5192/11 L2TP: O ICRQ, flg TLS, ver 2, len 
63, tnl 6897, lsid 11, rsid 0, ns 2, nr 1
         C8 02 00 3F 1A F1 00 00 00 02 00 01 80 08 00 00
         00 00 00 0A 80 0A 00 00 00 0F C8 14 B4 03 80 08
         00 00 00 0E 00 0B 80 0A 00 00 00 12 00 00 00 00
         00 0F 00 09 00 64 0F 10 09 02 02 00 1B 00 00
*Jul  7 03:28:33.575: uid:14 Tnl/Sn 5192/11 L2TP: Parse  AVP 0, len 8, flag 
0x8000 (M)
*Jul  7 03:28:33.575: uid:14 Tnl/Sn 5192/11 L2TP: Parse ICRP
*Jul  7 03:28:33.575: uid:14 Tnl/Sn 5192/11 L2TP: Parse  AVP 14, len 8, flag 
0x8000 (M)
*Jul  7 03:28:33.575: uid:14 Tnl/Sn 5192/11 L2TP: Assigned Call ID 5
*Jul  7 03:28:33.575: uid:14 Tnl/Sn 5192/11 L2TP: No missing AVPs in ICRP
*Jul  7 03:28:33.575: uid:14 Tnl/Sn 5192/11 L2TP: I ICRP, flg TLS, ver 2, len 
28, tnl 5192, lsid 11, rsid 0, ns 1, nr 3
contiguous pak, size 28
         C8 02 00 1C 14 48 00 0B 00 01 00 03 80 08 00 00
         00 00 00 0B 80 08 00 00 00 0E 00 05
*Jul  7 03:28:33.579: uid:14 Tnl/Sn 5192/11 L2TP: O ICCN to LNS-tunnel 6897/5
*Jul  7 03:28:33.579: uid:14 Tnl/Sn 5192/11 L2TP: O ICCN, flg TLS, ver 2, len 
167, tnl 6897, lsid 11, rsid 5, ns 3, nr 2
         C8 02 00 A7 1A F1 00 05 00 03 00 02 80 08 00 00
         00 00 00 0C 80 0A 00 00 00 18 06 1A 80 00 00 0A
         00 00 00 26 06 1A 80 00 80 0A 00 00 00 13 00 00
         00 01 00 15 00 00 00 1B 01 04 05 D4 03 05 C2 23
         05 05 06 0A 0B E2 7A ...
*Jul  7 03:28:33.579: RADIUS/ENCODE(00000018):Orig. component type = PPoE
*Jul  7 03:28:33.579: RADIUS(00000018): Config NAS IP: 10.0.0.0
*Jul  7 03:28:33.579: RADIUS(00000018): sending
*Jul  7 03:28:33.579: RADIUS/ENCODE: Best Local IP-Address 10.0.1.123 for 
Radius-Server 172.19.192.238
*Jul  7 03:28:33.579: RADIUS(00000018): Send Accounting-Request to 
172.19.192.238:2196 id 1646/23, len 176
*Jul  7 03:28:33.579: RADIUS:  authenticator 3C 81 D6 C5 2B 6D 21 8E - 19 FF 
43 B5 41 86 A8 A5
*Jul  7 03:28:33.579: RADIUS:  Acct-Session-Id     [44]  10  "00000023"
*Jul  7 03:28:33.579: RADIUS:  Framed-Protocol     [7]   6   
PPP                       [1]
*Jul  7 03:28:33.579: RADIUS:  Tunnel-Medium-Type  [65]  6   
00:IPv4                   [1]
*Jul  7 03:28:33.583: RADIUS:  Tunnel-Client-Endpoi[66]  10  "10.0.0.1"
*Jul  7 03:28:33.583: RADIUS:  Tunnel-Server-Endpoi[67]  10  "10.0.0.2"
*Jul  7 03:28:33.583: RADIUS:  Tunnel-Assignment-Id[82]  5   "lac"
*Jul  7 03:28:33.583: RADIUS:  Tunnel-Type         [64]  6   
00:L2TP                   [3]
*Jul  7 03:28:33.583: RADIUS:  Acct-Tunnel-Connecti[68]  12  "3356800003"
*Jul  7 03:28:33.583: RADIUS:  Tunnel-Client-Auth-I[90]  12  "LAC-tunnel"
*Jul  7 03:28:33.583: RADIUS:  Tunnel-Server-Auth-I[91]  12  "LNS-tunnel"
*Jul  7 03:28:33.583: RADIUS:  User-Name           [1]   16  "user@example.com"
*Jul  7 03:28:33.583: RADIUS:  Acct-Authentic      [45]  6   
Local                     [2]
*Jul  7 03:28:33.583: RADIUS:  Acct-Status-Type    [40]  6   
Start                     [1]
*Jul  7 03:28:33.583: RADIUS:  NAS-Port-Type       [61]  6   
Virtual                   [5]
*Jul  7 03:28:33.583: RADIUS:  NAS-Port            [5]   6   
0                         
*Jul  7 03:28:33.583: RADIUS:  NAS-Port-Id         [87]  9   "0/0/0/0"
*Jul  7 03:28:33.583: RADIUS:  Service-Type        [6]   6   
Framed                    [2]
*Jul  7 03:28:33.583: RADIUS:  NAS-IP-Address      [4]   6   
10.0.1.123                
*Jul  7 03:28:33.583: RADIUS:  Acct-Delay-Time     [41]  6   
0                         
*Jul  7 03:28:33.683: RADIUS: Received from id 1646/23 172.19.192.238:2196, 
Accounting-response, len 20
*Jul  7 03:28:33.683: RADIUS:  authenticator 1C E9 53 42 A2 8A 58 9A - C3 CC 
1D 79 9F A4 6F 3A

                      Additional References

                      The following sections provide references related to Per VRF AAA.

                      Related Documents

                      Related Topic

                      Document Title

                      Configuring server groups

                      Configuring RADIUS chapter in the Cisco IOS XE Security Configuration Guide: Securing User Services, Release 2.

                      RADIUS attribute screening

                      RADIUS Attribute Value Screening chapter in the Cisco IOS XE Security Configuration Guide: Securing User Services, Release 2.

                      Configuring broadcast accounting

                      Configuring Accounting chapter in the Cisco IOS XE Security Configuration Guide: Securing User Services, Release 2.

                      Cisco IOS Security Commands

                      Cisco IOS Security Command Reference

                      Cisco IOS Switching Services Commands

                      Cisco IOS IP Switching Command Reference

                      Configuring Multiprotocol Label Switching

                      Cisco IOS XE Multiprotocol Label Switching Configuration Guide, Release 2

                      Configuring virtual templates

                      Virtual Templates and Profiles section of the Cisco IOS XE Dial Technologies Configuration Guide, Release 2

                      Standards

                      Standards

                      Title

                      No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature.

                      --

                      MIBs

                      MIBs

                      MIBs Link

                      No new or modified MIBs are supported by this feature, and support for existing MIBs has not been modified by this feature.

                      To locate and download MIBs for selected platforms, Cisco IOS XE software releases, and feature sets, use Cisco MIB Locator found at the following URL:

                      http:/​/​www.cisco.com/​go/​mibs

                      RFCs

                      RFCs

                      Title

                      No new or modified RFCs are supported by this feature.

                      --

                      Technical Assistance

                      Description

                      Link

                      The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies.

                      To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds.

                      Access to most tools on the Cisco Support website requires a Cisco.com user ID and password.

                      http:/​/​www.cisco.com/​techsupport

                      Feature Information for Per VRF AAA

                      The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

                      Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

                      Table 2 Feature Information for Per VRF AAA

                      Feature Name

                      Releases

                      Feature Information

                      Per VRF AAA

                      Cisco IOS XE Release 2.1

                      The Per VRF AAA feature allows authentication, authorization, and accounting (AAA) on the basis of Virtual Private Network (VPN) routing and forwarding (VRF) instances.

                      In Cisco IOS XE Release 2.1, this feature was introduced on the Cisco ASR 1000 Series Aggregation Services Routers.

                      The following commands were introduced or modified: aaa accounting, aaa accounting delay-start, ip radius source-interface, server-private (RADIUS), ip vrf forwarding (server-group), radius-server domain-stripping, aaa authorization template.

                      RADIUS Per-VRF Server Group

                      Cisco IOS XE Release 2.1

                      Using the Radius Per-VRF Server Group feature, Internet Service Providers (ISPs) can partition RADIUS server groups based on Virtual Route Forwarding (VRF). This means that you can define RADIUS server groups that belong to a VRF. This feature is supported by “aaa: rad-serv-vrf” VSA.

                      In Cisco IOS XE Release 2.1, this feature was introduced on the Cisco ASR 1000 Series Aggregation Services Routers.

                      The following commands were introduced or modified: ip vrf forwarding.

                      Attribute Filtering Per-Domain and VRF Aware Framed-Routes

                      Cisco IOS XE Release 2.3

                      The Attribute Filtering Per-Domain and VRF Aware Framed-Routes feature allows for attribute filtering per-domain and VRF aware Framed-Routes. It introduces support for the “aaa:rad-serv-filter” VSA.

                      In Cisco IOS XE Release 2.3, this feature was introduced on the Cisco ASR 1000 Series Aggregation Services Routers.

                      AAA CLI Stop Record Enhancement

                      Cisco IOS XE Release 2.4

                      The AAA CLI Stop Record Enhancement feature enables sending an accounting stop record only when an access accept is received from the AAA server.

                      In Cisco IOS XE Release 2.4, this feature was introduced on the Cisco ASR 1000 Series Aggregation Services Routers.

                      The following commands were introduced or modified: aaa accounting send stop-record authentication.

                      Dynamic Per VRF AAA

                      Cisco IOS XE Release 2.4

                      The Dynamic Per VRF AAA feature allows you to use a customer template, which may be stored either locally or remotely, and AAA services can be performed on the information that is stored in the customer template.

                      In Cisco IOS XE Release 2.4, this feature was introduced on the Cisco ASR 1000 Series Aggregation Services Routers.

                      Glossary

                      AAA--authentication, authorization, and accounting. A framework of security services that provide the method for identifying users (authentication), for remote access control (authorization), and for collecting and sending security server information used for billing, auditing, and reporting (accounting).

                      L2TP--Layer 2 Tunnel Protocol. A Layer 2 tunneling protocol that enables an ISP or other access service to create a virtual tunnel to link customer remote sites or remote users with corporate home networks. In particular, a network access server (NAS) at the ISP point of presence (POP) exchanges PPP messages with the remote users and communicates by L2F or L2TP requests and responses with the customer tunnel server to set up tunnels.

                      PE--Provider Edge. Networking devices that are located on the edge of a service provider network.

                      RADIUS --Remote Authentication Dial-In User Service. RADIUS is a distributed client/server system that secures networks against unauthorized access. In the Cisco implementation, RADIUS clients run on Cisco routers and send authentication requests to a central RADIUS server that contains all user authentication and network service access information.

                      VPN --Virtual Private Network. A system that permits dial-in networks to exist remotely to home networks, while giving the appearance of being directly connected. VPNs use L2TP and L2F to terminate the Layer 2 and higher parts of the network connection at the LNS instead of the LAC.

                      VRF --Virtual Route Forwarding. Initially, a router has only one global default routing/forwarding table. VRFs can be viewed as multiple disjoined routing/forwarding tables, where the routes of a user have no correlation with the routes of another user.