query about determining ingress interface

Thu Jun 20 22:35:42 UTC 2002

indeed, altho you will have to go back to filters if you want to do this
on an IP more than a couple of hops away, I tend to find most of my peers
allow it a little way into their network and it either stops or it stops
at the next network boundary..

Steve

On Thu, 20 Jun 2002, Randy Bush wrote:

> 
> > Is there a way for an ISP to determine the ingress router interface at 
> > its network border that will carry IP traffic _from_ an IP address not 
> > owned by it?
> 
> traceroute -g, which is what insisting on lsr is all about
> 
> randy
> 
> 