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From: Marko Zec <zec@icir.org>
To: Bruce M Simpson <bms@incunabulum.net>
Date: Sat, 17 Nov 2007 12:27:21 +0000
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Cc: Robert Watson <rwatson@freebsd.org>, freebsd-current@freebsd.org,
	Reinhard Haller <reinhard.haller@interactive-net.de>
Subject: Re: 7.0-BETA2 routed and multicast registration
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On Saturday 17 November 2007 11:20:16 Bruce M Simpson wrote:
> Hi,
>
> I'm catching up on FreeBSD email after a long hiatus.
>
> Reinhard Haller wrote:
> > Hi,
> >
> > routed has problems with setsockopt registering itself for
> > multicast. The trace contains the following messages:
> >
> > IP_ADD_MEMBERSHIP ALLROUTERS: Can't assign requested address
> > turn on RIP
> > setsockopt(IP_ADD_MEMBERSHIP RIP): Can't assign requested address
> > setsockopt(rdisc_sock,IP_MULTICAST_IF): Can't assign requested
> > address
>
> That's because the ip_multicast_if() hack has been deprecated in
> -CURRENT for months now, because routed (and other multicast
> applications) really should be using the RFC 3678 APIs.
>
> I'm pretty sure I already pointed people at patches for converting
> routed to use the updated multicast APIs much earlier in the year;
> please check the archives, or see here:
>     http://people.freebsd.org/~bms/dump/routed.rfc3678.diff
>
> I haven't tested or committed the routed patch due to a lack of user
> feedback, sadly -- which is regrettable, we all end up feeling the
> pain during a release cycle if issues aren't nipped in the bud there
> and then.

Note that with a recent port of Quagga multicast doesn't work as well, 
so now we don't have neither RIP nor OSPF support there which is kind 
of funny.  Though I think it's not only the missing RFC1724 support in 
the kernel that is crippling mcast support in Quagga...

Marko

> Marko: I would much prefer it if ip_multicast_if() is not
> reintroduced to 7-CURRENT.
>
> kind regards,
> BMS