BGP error (cannot configure the local system as neighbor)

[Cisco Enthusiast]

Hello everyone, I'm having a problem dealing with the following error while configuring BGP on 2 VRFs (Regular BGP, not MP-BGP).

Please refer to the picture below.

and this is my bgp configuration:

!
router bgp 65000
no synchronization
no bgp log-neighbor-changes
no auto-summary
!
address-family ipv4 vrf blue
no synchronization
bgp router-id 192.168.1.12
neighbor 192.168.1.13 remote-as 65001
neighbor 192.168.1.13 local-as 65002
neighbor 192.168.1.13 activate
exit-address-family
!

I hope someone can help me with this issue. Thank you!

[MHM Cisco World]

in vrf red you use id 192.168.1.13 <<- 
which then use in vrf blue, 
check the idea, it best to config LO in each VRF and use it IP as bgp route-id 

[M02@rt37]

hello @Cisco Enthusiast,

on your router bgp 65000 instance:

it should be neighbor 192.168.1.13 local-as 65000 instead of neighbor 192.168.1.13 local-as 65002 ?

[David Ruess]

Hello,

The error shows you what the issue is:

myrouter (config-router-af) # neighbor 192.168.1.12 remote-as 65002 & Cannot configure the local system as neighbor

192.168.1.12 must be a local ip on that system.

A neighbor must be an IP not on the local system.

-David

[Harold Ritter]

Hi @Cisco Enthusiast ,

On another note, if you want vrf blue to see vrf red as 65001 and vrf red to see vrf blue as 65002, you should configure the following:

router bgp 65000

address-family ipv4 vrf blue

neighbor 192.168.1.13 local-as 65002 no-prepend replace-as

address-family ipv4 vrf red

neighbor 192.168.1.12 local-as 65001 no-prepend replace-as

Regards,