Configuration Guidelines::
VRF Used "CEA"
RD Used "64513:1"
RT Used "64513:1"
AS Used "64513"
PE-CE Routing Used "OSPF" for CE1A & PE1 & "EIGRP" for CE2A & PE2
IGP Used "ISIS" Level 2 between PE1 & PE2 .Loopbacks in Level 1 and PE1 & PE2 in different area.
*********************************************************************************
CE1A#sh running-config
!
interface Loopback0
description <
ip address 10.0.1.1 255.255.255.0
ip ospf network point-to-point
!
interface Loopback1
description <
ip address 172.168.15.1 255.255.255.0
ip ospf network point-to-point
!
interface Serial0/0
description <<>>
ip address 192.168.1.1 255.255.255.252
!
router ospf 10
log-adjacency-changes
redistribute connected route-map Only_Local
network 10.0.1.0 0.0.0.255 area 0
network 172.168.22.0 0.0.0.3 area 0
network 172.168.15.0 0.0.0.255 area 0
network 192.168.1.0 0.0.0.3 area 0
!
route-map Only_Local permit 10
match interface Loopback1 Loopback0
!
CE1A#
PE1#sh running-config
ip cef
!
ip vrf CEA
description <
rd 64513:1
route-target export 64513:1
route-target import 64513:1
!
mpls label protocol ldp
mpls ldp explicit-null for 10 to 20
no tag-switching ip propagate-ttl forwarded
tag-switching tdp router-id Loopback0
!
interface Loopback0
description <
ip address 10.0.2.1 255.255.255.255
ip router isis
isis circuit-type level-1
!
interface Loopback101
description <
ip vrf forwarding CEA
ip address 10.11.12.1 255.255.255.255
shutdown
!
interface Serial0/0
description <<>>
ip vrf forwarding CEA
ip address 192.168.1.2 255.255.255.252
clockrate 2000000
!
interface Serial0/1
description <
ip address 192.168.1.5 255.255.255.252
ip router isis
mpls label protocol ldp
tag-switching ip
clockrate 2000000
isis circuit-type level-2-only
!
router ospf 10 vrf CEA
domain-id 1.1.1.1
log-adjacency-changes
area 0 sham-link 10.11.12.1 10.11.13.1
redistribute bgp 64513 subnets
network 192.168.1.0 0.0.0.3 area 0
!
router isis
net 49.0001.1111.2222.3333.00
!
router bgp 64513
no synchronization
bgp log-neighbor-changes
neighbor 10.0.4.1 remote-as 64513
neighbor 10.0.4.1 description <
neighbor 10.0.4.1 update-source Loopback0
neighbor 10.0.4.1 soft-reconfiguration inbound
no auto-summary
!
address-family vpnv4
neighbor 10.0.4.1 activate
neighbor 10.0.4.1 send-community extended
exit-address-family
!
address-family ipv4 vrf CEA
redistribute connected
redistribute ospf 10 vrf CEA
no auto-summary
no synchronization
exit-address-family
!
ip route 10.0.1.0 255.255.255.0 192.168.1.1
ip route 172.168.15.0 255.255.255.0 192.168.1.1
!
!
access-list 10 permit 192.168.1.0 0.0.0.3
access-list 20 permit 10.0.4.0 0.0.0.255
access-list 20 permit 10.0.3.0 0.0.0.255
!
route-map Only_Customer permit 10
match interface Serial0/0
!
PE1#
P#sh running-config
ip cef
!
mpls label protocol ldp
no tag-switching ip propagate-ttl forwarded
tag-switching tdp router-id Loopback0
!
interface Loopback0
description <
>
ip address 10.0.3.1 255.255.255.255
ip router isis
isis circuit-type level-1
!
interface Serial0/0
description <
ip address 192.168.1.6 255.255.255.252
ip router isis
mpls label protocol ldp
tag-switching ip
clockrate 2000000
isis circuit-type level-2-only
!
interface Serial0/1
description <
ip address 192.168.1.9 255.255.255.252
ip router isis
mpls label protocol ldp
tag-switching ip
clockrate 2000000
isis circuit-type level-2-only
!
router isis
net 49.0002.9999.7777.6666.00
PE2#show running-config.
!
ip cef
ip vrf CEA
description <
rd 64513:1
route-target export 64513:1
route-target import 64513:1
!
mpls label protocol ldp
mpls ldp explicit-null for 10 to 20
no tag-switching ip propagate-ttl forwarded
tag-switching tdp router-id Loopback0
no ftp-server write-enable
!
!
interface Loopback0
description <
ip address 10.0.4.1 255.255.255.255
ip router isis
isis circuit-type level-1
!
interface Loopback101
description <
ip vrf forwarding CEA
ip address 10.11.13.1 255.255.255.255
shutdown
!
interface Serial0/0
description <
ip address 192.168.1.10 255.255.255.252
ip router isis
mpls label protocol ldp
tag-switching ip
clockrate 2000000
isis circuit-type level-2-only
!
interface Serial0/1
description <
ip vrf forwarding CEA
ip address 192.168.1.13 255.255.255.252
fair-queue 64 256 16
clockrate 2000000
!
router eigrp 1
auto-summary
!
address-family ipv4 vrf CEA
redistribute bgp 64513 metric 2 100 255 100 1500
network 192.168.1.12 0.0.0.3
auto-summary
autonomous-system 100
exit-address-family
!
router eigrp 100
auto-summary
!
router isis
net 49.0002.8888.2222.1111.00
redistribute connected route-map Only_Customer
redistribute static ip
!
router bgp 64513
no synchronization
bgp log-neighbor-changes
neighbor 10.0.2.1 remote-as 64513
neighbor 10.0.2.1 description <
neighbor 10.0.2.1 update-source Loopback0
neighbor 10.0.2.1 soft-reconfiguration inbound
no auto-summary
!
address-family vpnv4
neighbor 10.0.2.1 activate
neighbor 10.0.2.1 send-community extended
exit-address-family
!
address-family ipv4 vrf CEA
redistribute eigrp 100
no auto-summary
no synchronization
exit-address-family
!
ip route 10.0.5.0 255.255.255.0 192.168.1.14
ip route 172.168.25.0 255.255.255.0 192.168.1.14
!
!
access-list 10 permit 192.168.1.12 0.0.0.3
access-list 20 permit 10.0.3.0 0.0.0.255
access-list 20 permit 10.0.2.0 0.0.0.255
!
route-map Only_Customer permit 10
match interface Serial0/1
!
PE2#
CE2A#sh running-config
!
interface Loopback0
description <
ip address 10.0.5.1 255.255.255.0
!
interface Loopback1
description <
ip address 172.168.25.1255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
description <
ip address 192.168.1.14 255.255.255.252
!
router eigrp 100
redistribute connected route-map Only_Local
passive-interface Loopback0
passive-interface Loopback1
network 10.0.0.0
network 192.168.1.12 0.0.0.3
network 172.168.25.0
no auto-summary
no eigrp log-neighbor-changes
!
route-map Only_Local permit 10
match interface Loopback0 Loopback1
!
CE2A#
CE2A#sh ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
172.168.15.0/24 is subnetted, 1 subnets
D EX 172.168.15.0 [170/1280537600] via 192.168.1.13, 00:03:27, Serial0/0
C 172.168.25.0/24 is directly connected, Loopback1
10.0.0.0/24 is subnetted, 2 subnets
D EX 10.0.1.0 [170/1280537600] via 192.168.1.13, 00:03:27, Serial0/0
C 10.0.5.0 is directly connected, Loopback0
192.168.1.0/30 is subnetted, 2 subnets
C 192.168.1.12 is directly connected, Serial0/0
D EX 192.168.1.0 [170/1280537600] via 192.168.1.13, 00:03:27, Serial0/0
CE2A#
CE1A#sh ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
172.168.15.0/24 is subnetted, 1 subnets
C 172.168.15.0 is directly connected, Loopback1
O E2 172.168.25.0/24 [110/2297856] via 192.168.1.2, 00:07:05, Serial0/0
10.0.0.0/24 is subnetted, 2 subnets
C 10.0.1.0 is directly connected, Loopback0
O E2 10.0.5.0 [110/2297856] via 192.168.1.2, 00:07:05, Serial0/0
192.168.1.0/30 is subnetted, 2 subnets
O E2 192.168.1.12 [110/1] via 192.168.1.2, 00:07:05, Serial0/0
C 192.168.1.0 is directly connected, Serial0/0
CE1A#
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