- RADIUS Attributes Overview and RADIUS IETF Attributes
- RADIUS Vendor-Proprietary Attributes
- RADIUS Vendor-Specific Attributes and RADIUS Disconnect-Cause Attribute Values
- Connect-Info RADIUS Attribute 77
- Encrypted Vendor-Specific Attributes
- RADIUS Attribute 5 NAS-Port Format Specified on a Per-Server Group Level
- RADIUS Attribute 8 Framed-IP-Address in Access Requests
- RADIUS Attribute 82 Tunnel Assignment ID
- RADIUS Attribute 104
- RADIUS Tunnel Attribute Extensions
- V.92 Reporting Using RADIUS Attribute v.92-info
- RADIUS Attribute 66 Tunnel-Client-Endpoint Enhancements
- RADIUS Attribute Screening
- RADIUS NAS-IP-Address Attribute Configurability
- AAA Per VC QoS Policy Support
- Finding Feature Information
- Prerequisites for RADIUS Attribute 82 Tunnel Assignment ID
- Restrictions for RADIUS Attribute 82 Tunnel Assignment ID
- Information About RADIUS Attribute 82 Tunnel Assignment ID
- How to Verify if RADIUS Attribute 82 is Being Used by the LAC
- Configuration Examples for RADIUS Attribute 82 Tunnel Assignment ID
- Additional References
- Feature Information for RADIUS Attribute 82 Tunnel Assignment ID
RADIUS Attribute 82 Tunnel Assignment ID
The RADIUS Attribute 82: Tunnel Assignment ID feature allows the Layer 2 Transport Protocol access concentrator (LAC) to group users from different per-user or domain RADIUS profiles into the same active tunnel. Previously, Cisco IOS software assigned a separate virtual private dialup network (VPDN) tunnel for each per-user or domain RADIUS profile, even if tunnels with identical endpoints already existed.
This feature improves LAC and L2TP network server (LNS) performance by reducing memory usage, because fewer tunnel data structures must be maintained. This feature allows the LAC and LNS to handle a higher volume of users without negatively impacting router performance.
- Finding Feature Information
- Prerequisites for RADIUS Attribute 82 Tunnel Assignment ID
- Restrictions for RADIUS Attribute 82 Tunnel Assignment ID
- Information About RADIUS Attribute 82 Tunnel Assignment ID
- How to Verify if RADIUS Attribute 82 is Being Used by the LAC
- Configuration Examples for RADIUS Attribute 82 Tunnel Assignment ID
- Additional References
- Feature Information for RADIUS Attribute 82 Tunnel Assignment ID
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.
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.
Prerequisites for RADIUS Attribute 82 Tunnel Assignment ID
You must be using a Cisco platform that supports VPDN to use this feature.
Restrictions for RADIUS Attribute 82 Tunnel Assignment ID
This feature is designed only for VPDN dial-in applications. It does not support VPDN dial-out.
Information About RADIUS Attribute 82 Tunnel Assignment ID
The RADIUS Attribute 82: Tunnel Assignment ID feature defines a new avpair, Tunnel-Assignment-ID, which allows the LAC to group users from different RADIUS profiles into the same tunnel if the chosen endpoint, tunnel type, and Tunnel-Assignment-ID are identical.
How to Verify if RADIUS Attribute 82 is Being Used by the LAC
There are no configuration steps for the RADIUS Attribute 82: Tunnel Assignment ID feature. This task verifies the RADIUS attribute 82 used by the LAC during tunnel authorization.
DETAILED STEPS
Configuration Examples for RADIUS Attribute 82 Tunnel Assignment ID
LAC Configuration Example
The following example configures VPDN on the LAC:
hostname lac aaa new-model aaa authentication ppp default group radius aaa authorization network default group radius vpdn enable vpdn authen-before-forward interface Serial2/0:23 no ip address encapsulation ppp dialer-group 1 isdn switch-type primary-5ess no fair-queue dialer-list 1 protocol ip permit radius-server host lac-radiusd auth-port 1645 acct-port 1646 radius-server retransmit 3 radius-server key rad123
LNS Configuration Example
The following example configures VPDN on the LNS:
hostname lns aaa new-model aaa authentication ppp default group radius aaa authorization network default group radius vpdn enable vpdn-group 1 accept-dialin protocol any virtual-template 1 interface Loopback0 ip address 10.1.1.3 255.255.255.0 interface Virtual-Template1 ip unnumbered Loopback0 no keepalive peer default ip address pool mypool ppp authentication chap ip local pool mypool 10.1.1.10 10.1.1.50 radius-server host lns-radiusd auth-port 1645 acct-port 1646 radius-server retransmit 3 radius-server key cisco
RADIUS Configuration Example
The following examples configure the RADIUS server to group sessions in a tunnel:
Per-User Configuration
user@router.com Password = "cisco" Service-Type = Outbound,
Tunnel-Type = :1:L2TP,
Tunnel-Server-Endpoint = :1:"10.14.10.54",
Tunnel-Assignment-Id = :1:"router"
client@router.com Password = "cisco" Service-Type = Outbound,
Tunnel-Type = :1:L2TP,
Tunnel-Server-Endpoint = :1:"10.14.10.54",
Tunnel-Assignment-Id = :1:"router"
Domain Configuration
eng.router.com Password = "cisco" Service-Type = Outbound,
Tunnel-Type = :1:L2TP,
Tunnel-Server-Endpoint = :1:"10.14.10.54",
Tunnel-Assignment-Id = :1:"router"
sales.router.com Password = "cisco" Service-Type = Outbound,
Tunnel-Type = :1:L2TP,
Tunnel-Server-Endpoint = :1:"10.14.10.54",
Tunnel-Assignment-Id = :1:"router"
Additional References
The following sections provide references related to the RADIUS Attribute 82: Tunnel Assignment ID feature.
Related Documents
| Related Topic |
Document Title |
|---|---|
| Dial Technologies |
Cisco IOS Dial Technologies Configuration Guide , Release 12.4T |
| Wide Area Networks |
Cisco IOS Wide-Area Networking Configuration Guide , Release 12.4T |
Standards
| Standard |
Title |
|---|---|
| No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature. |
-- |
MIBs
| MIB |
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 releases, and feature sets, use Cisco MIB Locator found at the following URL: |
RFCs
| RFC |
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. |
Feature Information for RADIUS Attribute 82 Tunnel Assignment ID
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 1 | Feature Information for RADIUS Attribute 82: Tunnel Assignment ID |
| Feature Name |
Releases |
Feature Information |
|---|---|---|
| RADIUS Attribute 82: Tunnel Assignment ID |
12.2(4)T 12.2(4)T3 12.2(11)T 12.2(27)SB |
In 12.2(4)T, this feature was introduced. In 12.2(4)T3, support for the Cisco 7500 series routers was added. This feature was integrated into Cisco IOS Release 12.2(11)T and support was added for the Cisco 1760, Cisco AS5300, Cisco AS5350, Cisco AS5400, Cisco AS5800 and Cisco AS5850 platforms. This feature was integrated into Cisco IOS Release 12.2(27)SB.
|
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.
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