From owner-freebsd-hackers Fri Mar 3 15:30:16 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.9/8.6.6) id PAA06180 for hackers-outgoing; Fri, 3 Mar 1995 15:30:16 -0800 Received: from louie.udel.edu (mmdf@louie.udel.edu [128.175.2.33]) by freefall.cdrom.com (8.6.9/8.6.6) with SMTP id PAA06174 for ; Fri, 3 Mar 1995 15:30:15 -0800 Received: from snow-white-fddi.udel.edu by louie.udel.edu id aa13904; 3 Mar 95 18:29 EST Received: from louie.udel.edu by snow-white.ee.udel.edu id aa15943; 3 Mar 95 18:28 EST Received: from snow-white.ee.udel.edu by beauregard.udel.edu id aa09578; 3 Mar 95 23:25 GMT To: Mark Tinguely cc: atn-group@mitre.org, freebsd-hackers@FreeBSD.org, slr@mitre.org, wollman@halloran-eldar.lcs.mit.edu Subject: Re: multicast pruning In-reply-to: Your message of "Fri, 03 Mar 1995 09:19:02 CST." <199503031519.AA16567@plains.NoDak.edu> Date: Fri, 03 Mar 1995 23:25:27 +0000 From: Ajit Thyagarajan Message-ID: <9503032325.aa09578@beauregard.udel.edu> Sender: hackers-owner@FreeBSD.org Precedence: bulk In message <199503031519.AA16567@plains.NoDak.edu>you wrote: > NWNet mbone mrouter <====> FreeBSD mrouted <---> machine running sd > > == tunnel -- LAN > the local sd is not detecting new groups from the "outside world" > I had traces in the function X_ip_mforward() in the kernel file > /sys/netinet/ip_mroute.c, and I don't recieve tunnel packets, because > I do not belong to a remote multicast groups, but I can't join until > I get a list of groups...MWnet insists we have a "32" ttl and it is > possible that there is nothing to see and that is why I asked the question. > (yes, I believe in the power of run-on sentences) Well, it looks like you are having a problem with the tunnel definitely. There is no problem in joining. Remember that the multicast DVMRP implementation is flood and then prune, so traffic will first reach you and then get pruned back over the tunnel. > I would appreciate if someone could check if they can detect remote groups > or see if you can see a multicast group called "ndsu wb", or if someone is > willing to set up a mini-mbone to test the tunnelling, I would apprecaite > it. I did see this session sometime yesterday. We are currently cut off from the MBOne due to testing on Dartnet. > FreeBSD 2.x (more accurate 4.4 based OSes) don't have /usr/tmp, and also > /var/run is the location for process ID of running programs. I was proposing > a change in /usr/src/usr.sbin/mrouted/main.c for 4.4 based OSes, I should > have included a #ifdef for 4.4 systems. I think that is a good idea. I will make a note of this for the next release Thanks for all the help, Ajit