Can you elaborate? This isn't really much info to go on. multi-hop BGP is pretty simple though. In fact it's pretty much identical to the way most configure iBGP (sans mpls). You peer based on an address that is not directly connected to you. Once that is established you start receiving routes with a next hop of that "not-so-directly-connected" address that you are peered with. When you begin to send packets to that peer AS may need to traverse routers that do not have the BGP routes from the remote peer so you will need to use an IGP, static routes or PFM to tell the intermediate routers how to reach the prefixes advertised from the multi-hop peer. The cleanest way may be to use iBGP or simply redistribute the routes into your IGP if it is a small enough number.
2011/6/24 Mike Williams <[email protected]> > Hey guys, > > I've got a situation I think I need multihop bgp for (logical-systems and > bridge-domains). > However it bugs me deeply that I don't "get" multihop BGP. > > My biggest bugbear is if my multihop-ebgp peer tells me he know the best > way > to x.x.x.x, the packets I send towards him must be routed by > intermediaries, > will those intermediaries use their tables and "hijack" my packets down > their > bits of wet string through 15 other ASs and to the moon and back? > > Thanks > > -- > Mike Williams > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp > > _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
