[c-nsp] HIDE AS BGP

David Freedman david.freedman at uk.clara.net
Mon Aug 10 06:33:32 EDT 2009


If the ISP is in the middle , who is the upstream and what does the
L2VPN do? can you provide a simple diagram?

Dave.

jack daniels wrote:
> Hi All,
> 
> We had a requirement in which customer wants that the ISP- AS should not be
> visible when route are advertised to internet via a upstream(L2 VPN
> solution).
> Can we use BGP command no-prepend with Replace AS attribute to hide ISP AS
> in internet. ------------
> 
> Can we peer with customer using local AS which will be private AS.We will
> use no prepend command along with Replace AS which will replace ISP AS with
> the private AS which is used for Peering.While going out to any
> international Peer we will remove private AS . On internet only customer AS
> and Peer AS will be visible.
> 
> Please advise is this solution will work . Also advise if any better
> solution for this scenario.
> 
> 
> Thanks and Regards
> J.Daniels
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