[ntp:questions] NTP Limited Broadcast

Danny Mayer mayer at ntp.isc.org
Thu Mar 22 02:47:42 UTC 2007

Kevin D. Casey wrote:
> I found the solution to this problem. NTP (at least on FreeBSD) does not 
> broadcast on interfaces not associated with a broadcast command in ntp.conf. 
> So in order to broadcast on at least one network interface 
> must be associated with a network that has the broadcast address 
> In my case I accomplished this by installing a 2nd NIC and 
> configuring it with the address This class E network address 
> has as it's broadcast address and so NTP is able to 
> broadcast on it. I'm not sure if this is THE ONLY solution, but it worked 
> for me.
> -Kevin

This whole issue bothers me. I'm hoping to be able to discuss it with
some people next week when IETF is over and people are back.


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