Re: query about determining ingress interface

["Stephen J. Wilcox" <steve () opaltelecom co uk>]

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