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Date: Sat, 17 Nov 2007 11:20:16 +0000
From: Bruce M Simpson <bms@incunabulum.net>
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To: Reinhard Haller <reinhard.haller@interactive-net.de>
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Cc: freebsd-current@freebsd.org, Robert Watson <rwatson@FreeBSD.org>,
	Marko Zec <zec@icir.org>
Subject: Re: 7.0-BETA2 routed and multicast registration
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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.

Marko: I would much prefer it if ip_multicast_if() is not reintroduced 
to 7-CURRENT.

kind regards,
BMS