$author = "alok" ; > > you can't if its a valid internet address...can you?
depends on what you mean by "valid". - does "valid" = any 32 bit dotted quad? - does "valid" = any IP not in 1918 space? - does "valid" = any IP that the routing table has an entry for? - does "valid" = packets from this IP came in the interface i would send packets out of to reach that IP? > but that isnt the case here is it...some of ur internal core > routers may not have every router running bgp, so what do u do for such > scenarios..u default route it to a bgp router....im missing your point..... "loose" RPF on routers without full tables makes little sense. you choose where to filter carefully and avoid the pitfalls you keep raising... marty -- "No GUI for you! Use lynx!!!, Come back, One year!" /avant