BGP Peer in wrong AS

[Karim Gabriels]

Hi everyone!

I have this setup in my MPLS VPN cloud but it's giving me 'peer in wrong AS' errors between router R3 and R4.

Some help needed because i can't get it right.

I want iBGP peering between router 2 and 3 and eBGP peering between R1 and 2 + between router 3 and 4.

Image of the setup in attachment and the red notes on the png indicate the router numbers in textfile

Much appreciated!

Attached: mplsproblem.png:   networklayout

   mplsproblemconfigs.txt:   brief bgp configurations

[Francesco Molino · Accepted solution]

Hi

Ok you want to build up ebgp sessiong between R3 and R4.

On R3, you set the R4 loopback as neighbor IP but with remote-as 49 instead of 39.

neighbor 4.4.4.4 remote-as 49

And on R4 you configured correctly the AS 39. Then change that line by:

neighbor 4.4.4.4 remote-as 39

Thanks

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