> > ping -t 2 NTP.MCAST.NET
>
> Hmm, it doesn't work for me. The only multicast traffic coming out from
> this machine through the non-default multicast interface are mrouted
> packets. Both pings and NTP packets (TTL = 4) go only through eth0.
It may mean two things: either other interfaces have no multicast
listeners and this multicast is already pruned or mrouted does not
work. 8)
You may test it by looking at /proc/net/ip_mr_cache and dumping
mrouted tables.
Alexey Kuznetsov
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