(usagi-users 02917) Re: IPv6 Multicast on recent Linux Kernels

[Yong Chu Eu <ceyong@xxxxxxxxx>]

I am not sure whether i need Multicast Routing Daemon to route packet or
not or Simple Linux Kernel is enough for routing multicast packet. The 2
Access Point below Multicast Router, i wish to set it within the multicast
group manually so that i can run mobility test on packet lost,duplication
of packet for MN. 

--- Pavlin Radoslavov <pavlin@xxxxxxxx> wrote:
> > > > The symptoms are that it is unable to join Multicast groups,
> however
> > > > if there is another machine on the subnet, already a member of the
> > > > group, then it picks up the packets ok. Linux will also will
> remain a
> > > > member of the multicast group, even with the other machine leaves.
> > > 
> > > Are you running a multicast router? Do the other machines on the
> network
> > > have the same ICMPv6 "type" code for reports (206) ? This number
> isn't
> > > assigned by IANA last I checked, so implementations had to choose a 
> > > number--
> > > won't interoperate if they aren't using the same one.
> > 
> > IANA now lists it! It says:
> > 143  Version 2 Multicast Listener Report             
> [RFC-vida-mld-v2-08.txt]
> > 
> > I think this must have happened just a few days ago. So perhaps we can
> > change then? Some implementations are already using 143. Don't know
> what
> > FreeBSD does.
> 
> By looking into the KAME's CVS repository, it appears that until few
> days ago the value was 206.
> However, on Apr 15, 2004 the value was changed to the one defined by
> IANA (143).
> It looks like the change has happened the same day the value has
> been officially assigned :)
> 
> Pavlin
> 
> 
> 


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