This can be simplified in the following way. If you want your internal routers to be able to make a routing decision based on an external bgp route that is somewhere on the net that I'd think your internal router (3660) has to have that route in it's routing table (maybe redistributed into some IGP from BGP). Maybe not the best way.
Or, you could inject default routes from each BGP speaker (your 7200's) into your IGP. If let's say one of your 3600's send a packet to it's default gateway (one of the 7200)'s which in turn could pass it over ethernet to the other 7200 if you setup some policy routing etc. I'd say you might want have your 2600/3600's connected to both 7200's for redundancy in case one box completely fails it'll use the other. This could be done be accepting the default routes from each 7200 or by creating a floating static that way if the primary route to the internet fails, it'll use a backup. These are just a couple of ideas. If you provide some specifics of the layout, I may be able to help out a bit more. Also, I'm sure some of the experts here will provide much better detail of how they've implemented such a design. In short, I'm thinking that if you want a 2600/3600 to make a decision on which 7200 to go out of for a specific route, it has to know about it. Tim -----Original Message----- From: Steven A. Ridder [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 04, 2002 4:29 PM To: [EMAIL PROTECTED] Subject: BGP question [7:40525] If I had 2 7206 routers dual homed to two different ISP's for redundancy, I know I don't NEED the full bgp table, but if I were to accept them for optimal routing within my network, how would I tell my internal routers who don;t run BGP which of the two 7206 routers to go to for a specific route oout to the internet? I assume doing a redistribution into the IGP is a big no-no, so how do small 3600's and 2600's inside the AS know which of the two routers to send the traffic to based on the fact that that one router has the better route? I can think of adding a third 7206 router which would run BGP, connect to the other two routers and accept the full table as well, and the internal routers would use that one as the gateway to the internet, but if I didn't have that third router, is there any other way? -- RFC 1149 Compliant. Get in my head: http://sar.dynu.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=40545&t=40525 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
