nanog mailing list archives
Re: query about determining ingress interface
From: Dylan Greene <dylan () juniper net>
Date: Thu, 20 Jun 2002 01:58:43 -0400
On Thu, Jun 20, 2002 at 06:06:51PM -0400, Rajesh Talpade wrote:
the interface that "should be" passing the traffic.
Rajesh, Hmm.. Short of trusting that you're only going to receive traffic on a given ingress interface from a source you're learning from it (uRPF, sorta), I'm unsure how you could really reliably determine this?
in other words, given an IP address, i would like to know what interface traffic from this address should enter my network.
Would be be sufficent to just look at the routes you're learning via a given interface on your edge, and say that you can expect to receive traffic from those sources on those interfaces? It's not going to be particularly accurate, but unless you have tables from all of your peers, I'm not sure what else you'll have to go by.. ..Dylan -- , Dylan Greene , + Juniper Networks + + +1 617/407-6254 + ` dylan () juniper net '
Current thread:
- query about determining ingress interface Rajesh Talpade (Jun 20)
- Re: query about determining ingress interface Randy Bush (Jun 20)
- Re: query about determining ingress interface Stephen J. Wilcox (Jun 20)
- Re: query about determining ingress interface Vadim Antonov (Jun 20)
- Re: query about determining ingress interface Dylan Greene (Jun 20)
- Re: query about determining ingress interface Rajesh Talpade (Jun 20)
- Re: query about determining ingress interface Dylan Greene (Jun 20)
- Re: query about determining ingress interface Rajesh Talpade (Jun 20)
- Re: query about determining ingress interface Randy Bush (Jun 20)