Ondrej Zajicek <santi...@crfreenet.org> wrote on 2010/12/23 14:35:41: > > On Thu, Dec 23, 2010 at 09:49:02AM +0100, Joakim Tjernlund wrote: > > Ondrej Zajicek <santi...@crfreenet.org> wrote on 2010/12/22 18:44:54: > > > > > > On Tue, Dec 21, 2010 at 11:57:12AM +0100, Joakim Tjernlund wrote: > > > > > BTW, currently even if an opposite address is known, BIRD OSPF ptp > > > > > links use > > > > > multicast for HELLO protocol which would not work on physically ptp > > > > > links > > > > > that does not implement multicast. But AFAIK in such cases multicast > > > > > (and broadcast) is implemented on OS level (just it sends everything > > > > > to the other side). > > > > > > > > Would that be AllSPFRouters? That is what you should use on ptp > > > > links(but not > > > > on ptmp links). > > > > > > Yes, that is what we do, so it is OK. > > > > hmm, from a quick look I am not convinced that EVERY OSPF msg sent > > on PtP links uses AllSPFRouters as dst address. > > I wrote about HELLO packets, these are sent to AllSPFRouters on PtP links. Oh, forgot that.
> Other packets are sent to the neighbor IP address, which is a slight > diversion from RFC 2328, but should not cause any problems. But a stricter router may reject OSPF msg over an ptp links if they aren't addressed to AllSPFRouters. Jocke