Date: Sat, 06 Apr 1996 01:20:48 +0100 From: "Gary Palmer" <gpalmer@FreeBSD.ORG> To: Anthony Jefferson <tjeffers@nastg.gsfc.nasa.gov> Cc: hackers@FreeBSD.ORG, dennis@etinc.com (dennis) Subject: Re: Freebsd Vs. Linux Message-ID: <1019.828750048@palmer.demon.co.uk> In-Reply-To: Your message of "Fri, 05 Apr 1996 12:34:24 CDT." <199604051734.MAA10337@etinc.com>
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>We are also doing some work with multicast, was 2.0 BSD released with
>multicast enabled and 2.1 disabled. We tried to join a multicast group using
>2.1 and received some errors. In addtion, when we do a netstat -g we receive:
>muiltcast not compiled into the system.
I'm not sure what it was exactly in 2.1, but `netstat -g' on my
2.1-stable box (from about a week or two ago) says:
gary@palmer:~> netstat -g
no multicast routing compiled into this system
^^^^^^^
gary@palmer:~>
Multicast reception/transmission is enabled by default, but you need
to add
options MROUTING # Multicast routing
to your kernel if you want to route multicast packets between
interfaces. Perhaps you were looking for ``netstat -s'' which would
(amongst other data) give you:
igmp:
0 messages received
0 messages received with too few bytes
0 messages received with bad checksum
0 membership queries received
0 membership queries received with invalid field(s)
0 membership reports received
0 membership reports received with invalid field(s)
0 membership reports received for groups to which we belong
0 membership reports sent
(and no, I don't have an MBONE feed :-( )
>A fairly good indication we have something wrong. How do you enable
>multicast in 2.1 ? I did not see any config parameters related to multicast ?
See above.
Hope this helps
Gary
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