[isp-bgp] Re: EBGP and loopbacks

[Ton Schoenmakers <ton-s-lijst@...>]

Tulip Rasputin wrote:
> Folks,
>
> Does anyone here run EBGP on loopbacks?  I have this customer who wants to run EBGP using
> loopbacks. Dont we always use loopbacks with only the IBGP peering?
>
> Regards,
> Rasputin

When you use RFC1918 addresses for your loopback IP's, you are virtually immune for the recently re-published TCP/BGP vulnerability.  One simple static route for your EBGP peer can do the trick. Especially when you run BGP on a low-end router that could be overwhelmed when you would have to implement MD5 hashing of the BGP session.  
Ton Schoenmakers






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