My project topolgy and config files at the attached. The ip address arent real only simulation. I have 5 router. R1,R2,BB1,BB2 at the customer site. They have connect with frame-relay via ISP for intranet. R1 R2 connect same ISP but other tecnology with G.shdsl. R5 router is a ISP router for internet. I have some web server at my R1 and R2 site. I have a c class subnet real ip address. I want to announce 64 ip from R1 and other 64 ip from R2. İf one site internet connection is failed, the other site onnounce 128 ip for two site. So they connect with g.shdsl and failed site can announce with g.shdsl via live router.
ı have configured all router and first time everythink is ok. First 64 ip announced with R1 and the other 64 announced with R2. At the R5 routing table ı see two routing information about this sites. First routing information for 64 ip's gateway is R1 and the other 64 ip's gateway is R2. no problem. When ı broke R1 or R2 internet connection, all routing information for my real subnet direction go to other live router. again no problem:) but when ı reconnect broken link, the routing still goes old direction. (not on the broken link router)