[ntp:questions] NPTdate - difference in packets between -q and not?

David J Taylor david-taylor at blueyonder.neither-this-bit.nor-this.co.uk
Sat Apr 4 10:43:48 UTC 2009


David Woolley wrote:
> David J Taylor wrote:
>
>> What is the difference in the packets sent and received in the two
>> command formats (I appreciate that -q does not set the clock)?
>
> The source port number.  Your friend has a firewall problem.  It is
> blocking replies to port 123.

OK, David.  That's certainly consistent with the other problems we've 
seen.  He claims to be running no software firewall, so perhaps it is 
something in his router?

Would the same apply to ntpq -p?  That also works.

Thanks,
David 




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