[ntp:questions] Configure ntpd listen address

Danny Mayer mayer at ntp.org
Fri Jan 15 02:44:48 UTC 2010

Kenny Colliander wrote:
> Hi,
> I'm wondering if it's possible to configure ntpd to listen to a specific
> IP-address and if it is possible to specify source address for outgoing
> connections?
The interface listen code was implemented in 4.2.5 and is now released
in 4.2.6. The query-on code is not yet implemented. I had implemented a
version a long time ago but it needs to be revamped before being
released. Shortage of my time has been holding up development. Funding
would help.

> Reason: We are using multihomed servers as time servers, and we don't
> want to open NTP for all IP-addresses in our firewall.

I understand. That's why I developed the listen and query-on code.

> I'm currently using Meinberg's Windows port on NTP.

Yes, what has been released works on Windows.


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