[c-nsp] EIGRP CsC

Adam Vitkovsky adam.vitkovsky at swan.sk
Fri Apr 12 09:48:41 EDT 2013


That is some crazy setup you have here :)

So Carrier supporting Carriers has two ASNs AS100(r3+r1) and AS200(r2+r4)
and r1 and r2 run MP-eBGP
The Customer Carrier has also two ASNs AS100(r5+r6) and AS200(r9) and r5 and
r9 run OSPF over the CsC and MP-eBGP on loopbacks carried in OSPF
CEs are hooked up to the Customer Carrier 
r5 has RIP speaking CE r7
r6 has EIGRP speaking CE r8
r9 has RIP speaking CE r10

Basically the only weirdness is that RIP speaking CE(r7) doesn't see the
loopback of EIGRP speaking CE r8 but it does see its PE-CE subnet (which is
carried solely in EIGRP no redist. conn. In vrf BGP on PE). 
These two are even connected over a single Customer Carrier ASN 100. 
I don't know why these two can't see each other. 

Try posting the bgp tables from R5 and R6 so we can see where is the r8's
loopback lost

adam
-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mohammad Khalil
Sent: Thursday, April 11, 2013 9:38 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] EIGRP CsC

I have configured CsC (inter-AS) with three sites (R7 , R8 and R10)

R7 - R5 - R3 - R6 - R8
                |
               R1
                |
               R2 - R4 - R9 - R10

R1 operates in AS 100 , R2 operates in AS 200

Now
 , when i am running RIPv2 or BGP as the routing protocol between these CEs
and their respective PEs all is functioning well (BGP VPNv4 sessions  are
established between R9 R5 , R6 R5) But when i am running EIGRP its not
functioning !!
I do not know what i am missing

Below is my configurations

R1#sh run int pos1/0
Building configuration...

Current configuration : 101 bytes
!
interface POS1/0
 ip address 192.1.12.1 255.255.255.0
 encapsulation ppp
 mpls bgp forwarding
end

R1#sh run int f2/0
Building configuration...

Current configuration : 121 bytes
!
interface FastEthernet2/0
 ip address 192.1.13.1 255.255.255.0
 ip router isis 1
 speed 100
 duplex full
 mpls ip
end

R1#sh run int lo0
Building configuration...

Current configuration : 63 bytes
!
interface Loopback0
 ip address 1.1.1.1 255.255.255.255
end

R1#sh run | sec router isis
 ip router isis 1
router isis 1
 net 49.0001.0000.0000.0001.00
 is-type level-2-only
 passive-interface Loopback0
R1#sh run | sec router bgp
router bgp 100
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 no bgp default route-target filter
 neighbor 3.3.3.3 remote-as 100
 neighbor 3.3.3.3 update-source Loopback0  neighbor 192.1.12.2 remote-as 200
!
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 3.3.3.3 activate
  neighbor 3.3.3.3 send-community both
  neighbor 3.3.3.3 route-reflector-client
  neighbor 3.3.3.3 next-hop-self
  neighbor 192.1.12.2 activate
  neighbor 192.1.12.2 send-community both  exit-address-family

R2

R2#sh run int pos1/0
Building configuration...

Current configuration : 101 bytes
!
interface POS1/0
 ip address 192.1.12.2 255.255.255.0
 encapsulation ppp
 mpls bgp forwarding
end

R2#sh run int f2/0
Building configuration...

Current configuration : 121 bytes
!
interface FastEthernet2/0
 ip address 192.1.24.2 255.255.255.0
 ip router isis 1
 speed 100
 duplex full
 mpls ip
end

R2#sh run int lo0
Building configuration...

Current configuration : 63 bytes
!
interface Loopback0
 ip address 2.2.2.2 255.255.255.255
end

R2#sh run | sec router isis
 ip router isis 1
router isis 1
 net 49.0002.0000.0000.0002.00
 is-type level-2-only
 passive-interface Loopback0
R2#sh run | sec router bgp
router bgp 200
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 no bgp default route-target filter
 neighbor 4.4.4.4 remote-as 200
 neighbor 4.4.4.4 update-source Loopback0  neighbor 192.1.12.1 remote-as 100
!
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 4.4.4.4 activate
  neighbor 4.4.4.4 send-community both
  neighbor 4.4.4.4 next-hop-self
  neighbor 192.1.12.1 activate
  neighbor 192.1.12.1 send-community both  exit-address-family

R3

R3#sh run int f1/0
Building configuration...

Current configuration : 121 bytes
!
interface FastEthernet1/0
 ip address 192.1.13.3 255.255.255.0
 ip router isis 1
 speed 100
 duplex full
 mpls ip
end

R3#sh run int f1/1
Building configuration...

Current configuration : 123 bytes
!
interface FastEthernet1/1
 vrf forwarding ABC
 ip address 192.1.35.3 255.255.255.0
 speed 100
 duplex full
 mpls ip
end

R3#sh run int f2/0
Building configuration...

Current configuration : 123 bytes
!
interface FastEthernet2/0
 vrf forwarding ABC
 ip address 192.1.36.3 255.255.255.0
 speed 100
 duplex full
 mpls ip
end

R3#sh run int lo0
Building configuration...

Current configuration : 63 bytes
!
interface Loopback0
 ip address 3.3.3.3 255.255.255.255
end

R3#sh run | sec router bgp
router bgp 100
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 1.1.1.1 remote-as 100
 neighbor 1.1.1.1 update-source Loopback0  !
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 1.1.1.1 activate
  neighbor 1.1.1.1 send-community both
 exit-address-family
 !
 address-family ipv4 vrf ABC
  redistribute ospf 1
 exit-address-family
R3#sh run | sec router isis
 ip router isis 1
router isis 1
 net 49.0001.0000.0000.0003.00
 is-type level-2-only
 passive-interface Loopback0
R3#sh run | sec vrf def
vrf definition ABC
 rd 100:1
 route-target export 100:1
 route-target import 100:1
 route-target import 200:1
 !
 address-family ipv4
 exit-address-family
R3#sh run | sec router ospf 1 vrf
router ospf 1 vrf ABC
 router-id 192.1.1.3
 redistribute bgp 100 subnets
 network 192.1.1.3 0.0.0.0 area 0
 network 192.1.35.3 0.0.0.0 area 0
 network 192.1.36.3 0.0.0.0 area 0

R4

R4#sh run int f1/0
Building configuration...

Current configuration : 121 bytes
!
interface FastEthernet1/0
 ip address 192.1.24.4 255.255.255.0
 ip router isis 1
 speed 100
 duplex full
 mpls ip
end

R4#sh run int f1/1
Building configuration...

Current configuration : 123 bytes
!
interface FastEthernet1/1
 vrf forwarding ABC
 ip address 192.1.49.4 255.255.255.0
 speed 100
 duplex full
 mpls ip
end

R4#sh run int lo0
Building configuration...

Current configuration : 63 bytes
!
interface Loopback0
 ip address 4.4.4.4 255.255.255.255
end

R4#sh run | sec router isis
 ip router isis 1
router isis 1
 net 49.0002.0000.0000.0004.00
 is-type level-2-only
 passive-interface Loopback0
R4#sh run | sec router bgp
router bgp 200
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 2.2.2.2 remote-as 200
 neighbor 2.2.2.2 update-source Loopback0  !
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 2.2.2.2 activate
  neighbor 2.2.2.2 send-community both
 exit-address-family
 !
 address-family ipv4 vrf ABC
  redistribute ospf 1
 exit-address-family
R4#sh run | sec vrf def
vrf definition ABC
 rd 200:1
 route-target export 200:1
 route-target import 200:1
 route-target import 100:1
 !
 address-family ipv4
 exit-address-family

R5

R5#sh run int f1/0
Building configuration...

Current configuration : 103 bytes
!
interface FastEthernet1/0
 ip address 192.1.35.5 255.255.255.0
 speed 100
 duplex full
 mpls ip
end

R5#sh run int f1/1
Building configuration...

Current configuration : 115 bytes
!
interface FastEthernet1/1
 vrf forwarding MSSK
 ip address 192.1.57.5 255.255.255.0
 speed 100
 duplex full
end

R5#sh run int f2/0
               ^
% Invalid input detected at '^' marker.

R5#sh run | sec router ospf
router ospf 1
 router-id 192.1.1.5
 network 192.1.1.5 0.0.0.0 area 0
 network 192.1.35.5 0.0.0.0 area 0
R5#sh run | sec router bgp
router bgp 100
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 192.1.1.6 remote-as 100
 neighbor 192.1.1.6 update-source Loopback0  neighbor 192.1.1.9 remote-as
200  neighbor 192.1.1.9 ebgp-multihop 255  neighbor 192.1.1.9 update-source
Loopback0  !
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 192.1.1.6 activate
  neighbor 192.1.1.6 send-community both
  neighbor 192.1.1.9 activate
  neighbor 192.1.1.9 send-community both
  neighbor 192.1.1.9 next-hop-unchanged
 exit-address-family
 !
 address-family ipv4 vrf MSSK
  redistribute rip
 exit-address-family
R5#sh run | sec router rip
router rip
 !
 address-family ipv4 vrf MSSK
  redistribute bgp 100 metric transparent
  network 192.1.57.0
  no auto-summary
  version 2
 exit-address-family
R5#sh run | sec vrf def
vrf definition MSSK
 rd 300:1
 route-target export 300:1
 route-target import 300:1
 !
 address-family ipv4
 exit-address-family

R6

R6#sh run int f1/0
Building configuration...

Current configuration : 103 bytes
!
interface FastEthernet1/0
 ip address 192.1.36.6 255.255.255.0
 speed 100
 duplex full
 mpls ip
end

R6#sh run int f1/1
Building configuration...

Current configuration : 115 bytes
!
interface FastEthernet1/1
 vrf forwarding MSSK
 ip address 192.1.68.6 255.255.255.0
 speed 100
 duplex full
end

R6#sh run int lo0
Building configuration...

Current configuration : 65 bytes
!
interface Loopback0
 ip address 192.1.1.6 255.255.255.255
end

R6#sh run | sec router ospf
router ospf 1
 router-id 192.1.1.6
 network 192.1.1.6 0.0.0.0 area 0
 network 192.1.36.6 0.0.0.0 area 0
R6#sh run | sec router bgp
router bgp 100
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 192.1.1.5 remote-as 100
 neighbor 192.1.1.5 update-source Loopback0  !
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 192.1.1.5 activate
  neighbor 192.1.1.5 send-community both  exit-address-family  !
 address-family ipv4 vrf MSSK
  redistribute eigrp 68
 exit-address-family
R6#sh run | sec router eigrp
router eigrp 68
 !
 address-family ipv4 vrf MSSK autonomous-system 68
  default-metric 10000 1000 255 1 1500
  redistribute bgp 100
  network 192.1.68.0
 exit-address-family
R6#sh run | sec vrf def
vrf definition MSSK
 rd 300:1
 route-target export 300:1
 route-target import 300:1
 !
 address-family ipv4
 exit-address-family

R7

R7#sh run int f1/0
Building configuration...

Current configuration : 94 bytes
!
interface FastEthernet1/0
 ip address 192.1.57.7 255.255.255.0
 speed 100
 duplex full
end

R7#sh run int lo0
Building configuration...

Current configuration : 65 bytes
!
interface Loopback0
 ip address 172.1.1.7 255.255.255.255
end

R7#sh run | sec router rip
router rip
 version 2
 network 172.1.0.0
 network 192.1.57.0
 no auto-summary

R8

R8#sh run int f1/0
Building configuration...

Current configuration : 94 bytes
!
interface FastEthernet1/0
 ip address 192.1.68.8 255.255.255.0
 speed 100
 duplex full
end

R8#sh run int lo0
Building configuration...

Current configuration : 65 bytes
!
interface Loopback0
 ip address 172.1.1.8 255.255.255.255
end

R8#sh run | sec router eigrp
router eigrp 68
 network 172.1.0.0
 network 192.1.68.0

R9

R9#sh run int f1/0
Building configuration...

Current configuration : 103 bytes
!
interface FastEthernet1/0
 ip address 192.1.49.9 255.255.255.0
 speed 100
 duplex full
 mpls ip
end

R9#sh run int f1/1
Building configuration...

Current configuration : 116 bytes
!
interface FastEthernet1/1
 vrf forwarding MSSK
 ip address 192.1.109.9 255.255.255.0
 speed 100
 duplex full
end

R9#sh run int lo0
Building configuration...

Current configuration : 65 bytes
!
interface Loopback0
 ip address 192.1.1.9 255.255.255.255
end

R9#sh run | sec router bgp
router bgp 200
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 192.1.1.5 remote-as 100
 neighbor 192.1.1.5 ebgp-multihop 255
 neighbor 192.1.1.5 update-source Loopback0  !
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 192.1.1.5 activate
  neighbor 192.1.1.5 send-community both
  neighbor 192.1.1.5 next-hop-unchanged
 exit-address-family
 !
 address-family ipv4 vrf MSSK
  redistribute rip
 exit-address-family
R9#sh run | sec router rip
router rip
 !
 address-family ipv4 vrf MSSK
  redistribute bgp 200 metric transparent
  network 192.1.109.0
  no auto-summary
  version 2
 exit-address-family
R9#sh run | sec vrf def
vrf definition MSSK
 rd 300:1
 route-target export 300:1
 route-target import 300:1
 !
 address-family ipv4
 exit-address-family

R10

R10#sh run int f1/0
Building configuration...

Current configuration : 96 bytes
!
interface FastEthernet1/0
 ip address 192.1.109.10 255.255.255.0
 speed 100
 duplex full
end

R10#sh run int lo0
Building configuration...

Current configuration : 66 bytes
!
interface Loopback0
 ip address 172.1.1.10 255.255.255.255
end

R10#sh run | sec router rip
router rip
 version 2
 network 172.1.0.0
 network 192.1.109.0
 no auto-summary

R10#sh ip route rip
Codes: L - local, 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, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is not set

      172.1.0.0/32 is subnetted, 3 subnets
R        172.1.1.7 [120/2] via 192.1.109.9, 00:00:01, FastEthernet1/0
R        172.1.1.8 [120/1] via 192.1.109.9, 00:00:01, FastEthernet1/0
R     192.1.57.0/24 [120/1] via 192.1.109.9, 00:00:01, FastEthernet1/0
R     192.1.68.0/24 [120/1] via 192.1.109.9, 00:00:01, FastEthernet1/0

R7#sh ip route rip
Codes: L - local, 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, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is not set

      172.1.0.0/32 is subnetted, 2 subnets
R        172.1.1.10 [120/2] via 192.1.57.5, 00:00:19, FastEthernet1/0
R     192.1.68.0/24 [120/1] via 192.1.57.5, 00:00:19, FastEthernet1/0
R     192.1.109.0/24 [120/1] via 192.1.57.5, 00:00:19, FastEthernet1/0

R8#sh ip route eigrp
Codes: L - local, 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, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is not set

      172.1.0.0/32 is subnetted, 3 subnets
D EX     172.1.1.7 [170/514560] via 192.1.68.6, 22:43:46, FastEthernet1/0
D EX     172.1.1.10 [170/514560] via 192.1.68.6, 22:43:46, FastEthernet1/0
D EX  192.1.57.0/24 [170/514560] via 192.1.68.6, 22:43:46, FastEthernet1/0 D
EX  192.1.109.0/24 [170/514560] via 192.1.68.6, 22:43:46, FastEthernet1/0

BR,



















 













 

 


 		 	   		  
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