MPLS LAB - PE to CE routing - RIPv2
January 8th, 2009 in CCIE SP | tags: ,

In this post I will show how to configure RIPv2 as the PE to CE routing protocol. You can see the network-diagram below.

MPLS

The configurations for routers R7, R8, R11 and R13 are straightforward RIPv2 configurations like so :

Router R7 :

R7 :


router rip
 version 2
 network 7.0.0.0
 network 37.0.0.0
 no auto-summary

Router R8 :

R8 :


router rip
 version 2
 network 8.0.0.0
 network 68.0.0.0
 no auto-summary

Router R11 :

R11 :


router rip
 version 2
 network 11.0.0.0
 network 61.0.0.0
 no auto-summary

Router R13 :

R13 :


router rip
 version 2
 network 13.0.0.0
 network 31.0.0.0
 no auto-summary

Below the relevant configuration on router R3 :

R3 :


router rip
 version 2
 no auto-summary
 !
 address-family ipv4 vrf VPN_B
 redistribute bgp 100 metric transparent
 network 31.0.0.0
 no auto-summary
 exit-address-family
 !
 address-family ipv4 vrf VPN_A
 redistribute bgp 100 metric transparent
 network 37.0.0.0
 no auto-summary
 exit-address-family
!
router bgp 100
 no synchronization
 bgp router-id 3.3.3.3
 bgp log-neighbor-changes
 neighbor 6.6.6.6 remote-as 100
 neighbor 6.6.6.6 update-source Loopback0
 no auto-summary
 !
 address-family vpnv4
 neighbor 6.6.6.6 activate
 neighbor 6.6.6.6 send-community both
 exit-address-family
 !
 address-family ipv4 vrf VPN_B
 redistribute rip
 no auto-summary
 no synchronization
 exit-address-family
 !
 address-family ipv4 vrf VPN_A
 redistribute rip
 no auto-summary
 no synchronization
 exit-address-family

And on router R6 :

R6 :


router rip
 version 2
 no auto-summary
 !
 address-family ipv4 vrf VPN_B
 redistribute bgp 100 metric transparent
 network 68.0.0.0
 no auto-summary
 exit-address-family
 !
 address-family ipv4 vrf VPN_A
 redistribute bgp 100 metric transparent
 network 61.0.0.0
 no auto-summary
 exit-address-family
!
router bgp 100
 no synchronization
 bgp router-id 6.6.6.6
 bgp log-neighbor-changes
 neighbor 3.3.3.3 remote-as 100
 neighbor 3.3.3.3 update-source Loopback0
 no auto-summary
 !
 address-family vpnv4
 neighbor 3.3.3.3 activate
 neighbor 3.3.3.3 send-community both
 exit-address-family
 !
 address-family ipv4 vrf VPN_B
 redistribute rip
 no auto-summary
 no synchronization
 exit-address-family
 !
 address-family ipv4 vrf VPN_A
 redistribute rip
 no auto-summary
 no synchronization
 exit-address-family

Let’s check the routing table on router R11 :

R11 :


R11#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     37.0.0.0/24 is subnetted, 1 subnets
R       37.37.37.0 [120/1] via 61.61.61.6, 00:00:08, FastEthernet2/0
     7.0.0.0/32 is subnetted, 1 subnets
R       7.7.7.7 [120/2] via 61.61.61.6, 00:00:08, FastEthernet2/0
     11.0.0.0/32 is subnetted, 1 subnets
C       11.11.11.11 is directly connected, Loopback0
     61.0.0.0/24 is subnetted, 1 subnets
C       61.61.61.0 is directly connected, FastEthernet2/0
R11#ping 7.7.7.7

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 7.7.7.7, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 44/98/212 ms

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