[pkg-ntp-maintainers] Bug#409170: ntp does not react to multicast or broadcast ntp packets

[Joerg Dorchain]

On Tue, Feb 27, 2007 at 07:53:34PM +0100, Kurt Roeckx wrote:
> > multicastclient
> > 
> > as last lines.
> > 
> > netstat -g does not show a multicast group membership, and an lsof does
> > not show an open multicast socket of ntpd.
> > 
> > Replacing the 224.0.1.1 on the server with the network broadcast address
> > and replacing multicastclient with broadcastclient on the client does
> > not change the behaviour.
> 
> Can you take a look at
> https://ntp.isc.org/bugs/show_bug.cgi?id=495 and see if that's about
> your problem?  From the description, it seems to be.

Seems to be related. From the last report, some things changed.

- I am now using br0 as main interface (with eth0 as a bridge member and
  a tap interface from qemu  as the other bridge port)
- lsof and netstat -g now report the proper multicast membership

An strace shows the ntp multicasts are received on the proper socket.
However they seem to be ignored for obscure reasons. Is there a way to
get more debugging out of ntpd directly, e.g. a version with -d enabled?

Bye,

Joerg
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