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From Craig Rodrigues <rodr...@attbi.com>
Subject Re: [PATCH] the beginnings of multicast support
Date Sun, 06 Apr 2003 17:23:45 GMT

The issues with multicast have to do with subscribing
to multicast groups and receiving certain datagrams.

The issues are summarized here:


This may or may not affect your efforts to write a portable
API for multicast sockets, but it is worth noting.
Craig Rodrigues        

On Sun, Apr 06, 2003 at 11:50:58AM -0400, Craig Rodrigues wrote:
> Hi,
> There are issues with multicast...it is not as easy
> as just reading Stevens and doing the relevant setsockopt() calls.
> There are portability issues with multicast, especially
> with respect to IGMPv2 vs. IGMPv3 compliant behavior.
> I will try to dig up some references on it.  In the mean time,
> you might want to look at libnet.  They have a portability
> layer for multicast sockets.  It is pretty close to what you have,
> but there is some additional stuff for other platforms (such as Windows)
> http://www.packetfactory.net/projects/libnet/

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