[nsp] IP source problem

[Bob Tinkelman]

> I'm happen to have a customer who has his own IP addresses
> and needs to do upload by me, but not download. He has another
> provider from where he does the download. Hence, I do not
> advertise their prefixes.  Now, I have a provider (lets call him
> ... verio) who seems to be filtrating packets based on the IP
> source (I think with uRPF), which it's ok, but in this particular
> case it is a problem for me. Do you know a simple way to work it
> out?

It's been a while since I was in a position to look inside the
configs of Verio routers, but at one point I believe the filters
were constructed using the radb for bgp customers.  That might
have changed of course.

As you do bgp with Verio, try updating the radb to indicate your
customer might bgp-announce their routes to you and you might
bgp-announce them to Verio.

That might fix things.

Of course, you could also try asking Verio directly.  There's no
reason why they shouldn't help you.
--
Bob Tinkelman <bob at tink.com>
ISPnet, Inc.    718.464.4747