Configure PPPoE over BDI on ASR1k Series Routers

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Updated:May 29, 2017

Document ID:211305

Bias-Free Language

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Introduction

This document describes how to configure Point-to-Point Protocol over Ethernet (PPPoE) Server with the Bridge Domain Interface (BDI) and vlan-range.

Prerequisites

Requirements

Cisco recommends that you have knowledge of these topics:

End-to-End Layer 1 connectivity is fine
Basics of PPP and PPPoE are well understood

Components Used

The information in this document is based on these software and hardware versions:

HOST-1 - CISCO887G
HOST-2 - CISCO887
SWITCH - WS-C3560-24TS-S
PPPoE SERVER - ASR1001-X

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Configure

Note: Use the Command Lookup Tool (registered customers only) in order to obtain more information on the commands used in this section.

HOST-1

!
 interface FastEthernet0
  switchport access vlan 100
  no ip address
 end

!

interface Vlan100
  no ip address
  pppoe enable group global
  pppoe-client dial-pool-number 1
 end

!

interface Dialer1
  ip address negotiated
  encapsulation ppp
  dialer pool 1
  ppp chap hostname dsl
  ppp chap password 0 dsl
 end

!

HOST-2

!

interface FastEthernet0
  switchport access vlan 200
  no ip address
 end

!

!
 interface Vlan200
  no ip address
  pppoe enable group global
  pppoe-client dial-pool-number 1
 end

!

!
 interface Dialer1
  ip address negotiated
  encapsulation ppp
  dialer pool 1
  ppp chap hostname dsl
  ppp chap password 0 dsl
 end

!

SWITCH


 SWITCH#sh cdp neighbors 
 Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                   S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone, 
                   D - Remote, C - CVTA, M - Two-port Mac Relay 

 Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
 SERVER           Gig 0/1           130              R I   ASR1001-X Gig 0/0/0
 HOST-1           Fas 0/2           141            R B S I 887G      Fas 0
 HOST-2           Fas 0/1           167            R B S I 887       Fas 0



!
 interface FastEthernet0/2
  switchport access vlan 100
 end

!
 interface FastEthernet0/1
  switchport access vlan 200
 end

!

!
 interface GigabitEthernet0/1
  switchport trunk encapsulation dot1q
  switchport trunk allowed vlan 100,200
  switchport mode trunk
 end

!

PPPoE SERVER

!

username dsl password 0 dsl

!
 bba-group pppoe global
  virtual-template 1
 !
 interface GigabitEthernet0/0/0
  no ip address
  negotiation auto
  cdp enable
  service instance 100 ethernet
   encapsulation dot1q 100 etype pppoe-all
   rewrite ingress tag pop 1 symmetric
   bridge-domain 100
  !        
  service instance 200 ethernet
   encapsulation dot1q 200 etype pppoe-all
   rewrite ingress tag pop 1 symmetric
   bridge-domain 200
  !
 !

interface Virtual-Template1
  ip unnumbered Loopback0
  peer default ip address pool POOL
  ppp authentication chap
 !
 interface BDI100
  no ip address
  pppoe enable group global
 !
 interface BDI200
  no ip address
  pppoe enable group global
 !
 interface Loopback0
  ip address 192.168.10.1 255.255.255.255
 end

!
 ip local pool POOL 192.168.1.1 192.168.1.100

!

Alternativley, you can configure 'vlan-range' as shown:

!
interface GigabitEthernet0/0/0
 no ip address
 negotiation auto
 service instance 100 ethernet
  encapsulation default
  bridge-domain 1
 !
end



!
interface BDI1
 no ip address
 vlan-range dot1q 1 4094
  pppoe enable group global
 !
end

Network Diagram

Verify

Use this section in order to confirm that your configuration works properly.

On HOST-1

HOST-1#show ip interface brief | exclude un  
 Interface                  IP-Address      OK? Method Status                Protocol
 Dialer1                    192.168.1.4     YES IPCP   up                    up     



HOST-1#show caller ip
   Line           User       IP Address      Local Number    Remote Number   <->
   Vi2            SERVER     192.168.10.1    -               <unknown phone  in



HOST-1#ping 192.168.10.1
 Type escape sequence to abort.
 Sending 5, 100-byte ICMP Echos to 192.168.10.1, timeout is 2 seconds:
 !!!!!
 Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms



HOST-1#show ppp interface virtual-Access 2
 PPP Serial Context Info
 -------------------
 Interface        : Vi2
 PPP Serial Handle: 0x1F000003
 PPP Handle       : 0xB2000003
 SSS Handle       : 0x8000004
 AAA ID           : 24
 Access IE        : 0xA7000003
 SHDB Handle      : 0x0
 State            : Up
 Last State       : Binding
 Last Event       : LocalTerm

 PPP Session Info
 ----------------
 Interface        : Vi2
 PPP ID           : 0xB2000003
 Phase            : UP
 Stage            : Local Termination
 Peer Name        : SERVER
 Peer Address     : 192.168.10.1
 Control Protocols: LCP[Open] IPCP[Open] CDPCP[Stopped] 
 Session ID       : 3
 AAA Unique ID    : 24
 SSS Manager ID   : 0x8000004
 SIP ID           : 0x1F000003
 PPP_IN_USE       : 0x11

 Vi2 LCP: [Open] 
 Our Negotiated Options
 Vi2 LCP:    MagicNumber 0x7735647E (0x05067735647E)
 Peer's Negotiated Options
 Vi2 LCP:    MRU 1500 (0x010405DC)
 Vi2 LCP:    AuthProto CHAP (0x0305C22305)
 Vi2 LCP:    MagicNumber 0xA7A011AC (0x0506A7A011AC)

 Vi2 IPCP: [Open] 
 Our Negotiated Options
 Vi2 IPCP:    Address 192.168.1.5 (0x0306C0A80105)
 Peer's Negotiated Options
 Vi2 IPCP:    Address 192.168.10.1 (0x0306C0A80A01)

On HOST-2

HOST-2#show ip interface brief | exclude un  
 Interface                  IP-Address      OK? Method Status                Protocol
 Dialer1                    192.168.1.6     YES IPCP   up                    up     



HOST-2#show caller ip 
   Line           User       IP Address      Local Number    Remote Number   <->
   Vi2            SERVER     192.168.10.1    -               <unknown phone  in



HOST-2#ping 192.168.10.1
 Type escape sequence to abort.
 Sending 5, 100-byte ICMP Echos to 192.168.10.1, timeout is 2 seconds:
 !!!!!
 Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms



HOST-2#show ppp interface virtual-Access 2
 PPP Serial Context Info
 -------------------
 Interface        : Vi2
 PPP Serial Handle: 0x7B00000A
 PPP Handle       : 0xA000000A
 SSS Handle       : 0x4C00000B
 AAA ID           : 68
 Access IE        : 0x1D00000A
 SHDB Handle      : 0x0
 State            : Up
 Last State       : Binding
 Last Event       : LocalTerm

 PPP Session Info
 ----------------
 Interface        : Vi2
 PPP ID           : 0xA000000A
 Phase            : UP
 Stage            : Local Termination
 Peer Name        : SERVER
 Peer Address     : 192.168.10.1
 Control Protocols: LCP[Open] IPCP[Open] CDPCP[Stopped] 
 Session ID       : 10
 AAA Unique ID    : 68
 SSS Manager ID   : 0x4C00000B
 SIP ID           : 0x7B00000A
 PPP_IN_USE       : 0x11

 Vi2 LCP: [Open] 
 Our Negotiated Options
 Vi2 LCP:    MagicNumber 0x421AC8AB (0x0506421AC8AB)
 Peer's Negotiated Options
 Vi2 LCP:    MRU 1500 (0x010405DC)
 Vi2 LCP:    AuthProto CHAP (0x0305C22305)
 Vi2 LCP:    MagicNumber 0xA7A0942C (0x0506A7A0942C)

 Vi2 IPCP: [Open] 
 Our Negotiated Options
 Vi2 IPCP:    Address 192.168.1.6 (0x0306C0A80106)
 Peer's Negotiated Options
 Vi2 IPCP:    Address 192.168.10.1 (0x0306C0A80A01)

On SWITCH

SWITCH#show vlan brief 

 VLAN Name                             Status    Ports
 ---- -------------------------------- --------- -------------------------------
 1    default                          active    Fa0/4, Fa0/5, Fa0/6, Fa0/7
                                                 Fa0/8, Fa0/9, Fa0/10, Fa0/11
                                                 Fa0/12, Fa0/13, Fa0/14, Fa0/15
                                                 Fa0/16, Fa0/17, Fa0/18, Fa0/19
                                                 Fa0/20, Fa0/21, Fa0/22, Fa0/23
                                                 Fa0/24, Gi0/2
 11   VLAN0011                         active    
 12   VLAN0012                         active    
 13   VLAN0013                         active    
 100  VLAN0100                         active    Fa0/2
 200  VLAN0200                         active    Fa0/1



SWITCH#Show interface trunk

 Port        Mode             Encapsulation  Status        Native vlan
 Gi0/1       on               802.1q         trunking      1

 Port        Vlans allowed on trunk
 Gi0/1       100,200

 Port        Vlans allowed and active in management domain
 Gi0/1       100,200

 Port        Vlans in spanning tree forwarding state and not pruned
 Gi0/1       100,200

On PPPoE SERVER

SERVER#show caller ip
   Line           User       IP Address      Local Number    Remote Number   <->
   Vi2.1          dsl        192.168.1.6     -               -               in 
   Vi2.2          dsl        192.168.1.5     -               -               in



SERVER#show ip local pool POOL
  Pool                     Begin           End             Free  In use
  POOL                     192.168.1.1     192.168.1.100     98       2
 Available addresses:
    192.168.1.7                                    
    192.168.1.8                                    
    192.168.1.9             

.....

.....

When you use 'vlan-range', notice change in 'Port':

SERVER#show caller ip 
  Line           User       IP Address      Local Number    Remote Number   <->
  Vi2.1          dsl        192.168.1.7     -               -               in 
  Vi2.2          dsl        192.168.1.8     -               -               in

Troubleshoot

This section provides information you can use in order to troubleshoot your configuration.

These debugs will be helpful to troubleshoot PPP/PPPoE.

debug pppoe events
debug pppoe errors
debug ppp negotiation

Related Information

Contributed by Cisco Engineers

Utsav Dutt
Cisco TAC Engineer

Configure PPPoE over BDI on ASR1k Series Routers

Available Languages

Download Options

Bias-Free Language

Contents

Introduction

Prerequisites

Requirements

Components Used

Configure

Network Diagram

Verify

Troubleshoot

Related Information

Contributed by Cisco Engineers

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