Joshua Graessley wrote: [ ... ] > If someone is using broadcast for a service discovery protocol instead > of multicast, they would want services, whether running locally or > remotely, to receive that broadcast.
Sure, since the thing doing service discovery may not be the same as the thing (or things) advertising services. > If loopback is the only interface, it might still be desirable to find > services running on the local machine. Besides, giving the loopback special case behavior when it's not needed doesn't strike me as a good idea. Presumably one would want to remove the second test: /* * Multicasts with a time-to-live of zero may be looped- * back, above, but must not be transmitted on a network. * Also, multicasts addressed to the loopback interface * are not sent -- the above call to ip_mloopback() will * loop back a copy if this host actually belongs to the * destination group on the loopback interface. */ if (ip->ip_ttl == 0 || ifp->if_flags & IFF_LOOPBACK) { m_freem(m); goto done; } ...around line 380 of /usr/src/sys/netinet/ip_output.c, and rebuild the kernel to test your suggested change out. -Chuck To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-net" in the body of the message