>Hi, > >I face this problem when reading Halabi's classic (p.377-382). I >also face such a problem in my supported network. > >Router A and B run iBGP in AS1. A runs eBGP with C in AS2. B runs >eBGP with D in AS3. >I want the A-C path be the primary default and the B-D path be the >backup default. >(Note this is not exactly the same as Halabi's example) > >In Halabi's example, he uses a default route pointing to a network >(e.g. ip route 0.0.0.0 0.0.0.0 193.78.0.0). Then he uses route-map >to set different local_preference based on matching the subnet ip. >The point is this subnet must be advertised inbound from the ISP so >that we can apply inbound route-map. > > But my problem is that in reality we usually use static default >route pointing to the ISP's router interface (e.g. ip route 0.0.0.0 >0.0.0.0 193.78.1.1). This route is statically entered but not >learnt dynamically. Then how can I set local_pref to this default >route ? How can I advertise this route message to the iBGP peer ? >I have thought of redistributing static route but it doesn't really >make sense and seems too complex. Why doesn't it make sense? You are saying you want to advertise something. Static routes don't advertise. The only ways to get a static route into a routing protocol is to hear it from another speaker of the same protocol, or to redistribute it. Other speakers can advertise either because they learned it, redistributed it, or use default information originate. > >I believe you may also have experienced such a setup. What's the >more practical solution ? Thank you in advance. > >Cheers, >YY _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
