The MPLS-OPS Archive

["kartik" <kartik.kashyap@estelcom.com>]

Dear Yugandhar

 

When you try to ping the PE interface from the same PE router, the PE router instead of referring the VRF for the VPN of which this PE interface is the member, it refers the global routing table. But the global routing table does not has any information about the PE interface hence it is not able to ping the interface from the router. In order ping the PE interface from the router you need to do

Ping vrf bank1

 

Regards

Kartik

 

 

-----Original Message-----
From: yugandhar [mailto:yugandhark@mtech.idrbt.ac.in]
Sent: Friday, March 19, 2004 11:34 AM
To: mpls-ops@mplsrc.com
Subject: [MPLS-OPS]: problem in implementing the BGP MPLS VPN

 

Hi all

 

I have a problem in implementing the BGP MPLS VPN setup. Here Iam giving the network diagram and configuration of one PE router. Iam unnable ping to the own interfaces of PE2 but I can ping interfaces of PE from the CE routers........means as shown in the network diagram I can ping PE2-------- F0/0 & F0/1   from the CE1(Bank1) and CE2(Bank2),but from PE2 I can't ping its own interfaces. RIP is enabled on all CE-PE links.

 

 

 

Bank1\                                                              /Bank2

            \                                                          /        

              \                                                      /

               PE1-----------------P-----------------------PE2

              /                                                       \

            /                                                           \

Bank2/                                                               \BANK1

 

 

sh run
Building configuration...

 

Current configuration : 2573 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Kanpur
!
boot system flash c3745-jk9s-mz.123-1a.bin
enable secret 5 $1$mLnf$fJMzXqY9UEA/rXjPNyHrq0
!
ip subnet-zero
!
!
!
ip vrf Bank1
 rd 1:26
 route-target export 100:26
 route-target import 100:26
!
ip vrf Bank2
 rd 1:27
 route-target export 100:27
 route-target import 100:27
!
ip cef
mpls ldp logging neighbor-changes
!
!
!
!
!
!
!
!
!
!
!
!
no voice hpi capture buffer
no voice hpi capture destination
!
!
!
!
!
interface Loopback0
 ip address 194.22.15.1 255.255.255.255
!
interface FastEthernet0/0
 description *** Interface to Bank1-side B ***
 ip vrf forwarding Bank1
 ip address 10.2.1.1 255.255.255.252
 duplex auto
 speed auto
!
interface FastEthernet0/1
 description *** Interface to Bank2-side B ***
 ip vrf forwarding Bank2
 ip address 196.7.25.1 255.255.255.252
 duplex auto
 speed auto
!
interface Serial1/0
 ip address 203.250.15.2 255.255.255.252
 no fair-queue
 

 

router rip
 version 2
 !
 address-family ipv4 vrf Bank2
 version 2
 network 196.7.25.0
 no auto-summary
 exit-address-family
 !
 address-family ipv4 vrf Bank1
 version 2
 network 10.0.0.0
 no auto-summary
 exit-address-family
!

 

router bgp 1
 no bgp default ipv4-unicast
 bgp log-neighbor-changes
 neighbor 194.22.15.2 remote-as 1
 neighbor 194.22.15.2 update-source Loopback0
 !
 address-family vpnv4
 neighbor 194.22.15.2 activate
 neighbor 194.22.15.2 send-community extended
 exit-address-family
 !
 address-family ipv4
 neighbor 194.22.15.2 activate
 no auto-summary
 no synchronization
 exit-address-family
 !
 address-family ipv4 vrf Bank2
 no auto-summary
 no synchronization
 exit-address-family
 !
 address-family ipv4 vrf Bank1
 no auto-summary
 no synchronization
 exit-address-family
!
ip http server
no ip http secure-server
 ip classless
!

 

 

 

regards

yugandhar