On Wed, 12 Feb 2003, John Neiberger wrote: > >thing else. We have seen packets go out one interface and return on > the > >other. I suspect that something is not right with the border routers. > Any > >thoughts or suggestions? > > They're probably using BGP and they're both advertising the same > prefixes. This is actually pretty normal behavior. You don't have a
So do your two links terminate at the same provider at the same POP? If so they may have simply added two static routes pointing your block over the two links. This is commonly done for companies who have two links (2xT1s) without a multiplexor and don't want to run BGP. It's kind of a poor man's configuration. It's easy and simple to implement but gives the end user unpredictable return paths. Inbound Router-1 = 192.168.1.254 Inbound Router-2 = 192.168.2.254 Your IP Block = 172.16.0.0 255.255.0.0 Your ISP May have the following on the POP router: ip route 172.16.0.0 255.255.0.0 192.168.1.254 ip route 172.16.0.0 255.255.0.0 192.168.2.254 Andrew --- http://www.andrewsworld.net/ ICQ: 2895251 Cisco Certified Network Associate "Learn from the mistakes of others. You won't live long enough to make all of them yourself." Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=62910&t=62863 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
