[ntp:security] NOEPEER patch

Martin Burnicki martin.burnicki at meinberg.de
Mon Jul 30 08:56:09 UTC 2018

Harlan Stenn wrote:
> I don't think I was involved in that discussion or coding.

At least you haven't commented in those threads. ;-)

> I'm assuming it's not that important that we find out who was involved,
> it's more important that we fix this ASAP.


> Similarly, it's too bad that we didn't know about this before I released
> the proposed tarball.  But we're past that now.


>> With the latest NOEPEER patch such "symmetric active" requests are
>> simply dropped, but IMO it would be good to get the behavior back that
>> was initially implemented by DLM, i.e. send a "symmetric passive" reply
>> back, but don't mobilize an association, unless authenticated.
>> Do you think we can modify the patch so that we get this behavior back
>> in p12? It shouldn't be too hard to get it.
> Yes, I'm happy to find a solution to this and include it in p12.

That would be really good.

> Do you know if the Windows client will be upset if it gets back a mode 4
> (server) response instead of a mode 2 (passive symmetric) response?

I haven't tried this, yet, but I'm going to investigate.

Would this be easier or more straightforward? With sending a passive
symmetric response it should work anyway ...

Martin Burnicki

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