Subject: Re: Routed Error
To: Sean Murphy <033197m@acadiau.ca>
From: Todd Vierling <tv@pobox.com>
List: netbsd-help
Date: 08/06/1998 09:50:18
On Wed, 5 Aug 1998, Sean Murphy wrote:

:  routed[187]:sendto(ne1,224.0.0.2): No Route to host
: AFAIK, I'm not telling it to do ANYTHING with 224.  ne1 is my ISA ethernet
: card, and that works fine.  the local network is set up with a class B
: configuration of 192.168.x.x with the NetBSD machine being 192.168.0.1 .
: I don't understand why its trying to access 224.0.0.2 .  I've grepped
: /etc/* for '224.0.0.2' to no avail.  Anyone run across this before and/or
: know how to fix it?

224 is the multicast network.  If you're running routed with RIP v2 enabled,
it will try to send multicast packets, as that's one of the ways RIP v2
sends routing information.

Suggestion:  If your router is just separating two network segments with a
default gateway on one side, use "route add" and tell the router how to get
to the subnet via a static route.

However, if you want RIP v2, you may want to add a route to the multicast
network.  This is what I'm not too sure about doing - I think you are
supposed to route to the loopback interface
("route add 224.0.0.0 -netmask 255.0.0.0 127.0.0.1").  There was a time whan
I saw the standard NetBSD boot add a route for multicast, and it does not
seem to be in /etc/netstart anymore.

-- 
-- Todd Vierling (Personal tv@pobox.com; Bus. todd_vierling@xn.xerox.com)