[c-nsp] Problems with peers that don't have full routing tables

[andrew2 at one.net]

Bob Tinkelman wrote:

> However,
> 
>    When ISPnet gets traffic for the /24, it routes it
>    through NTT, and
> 
>    NTT filters based on source address and, if it gets
>    traffic from ISPnet with a yahoo source ip address,
>    it just drops it on the floor.
> 
> 
> Our quick work-around was to get our customer to bgp- announce the
> /24 to both their upstreams.  This cleared the problem but isn't
> giving them the inbound routing policy they wanted.  

Why not just filter 165.254.65.0/24 from the feed you receive from NTT?
You'd still see the /20, but should prefer your direct connection to your
customer (fewer AS hops) so long as your link to them is up.

Andrew