[ntp:questions] NTP stops when client address changes?

phil pharwood at bellsouth.net
Fri Aug 7 06:37:54 UTC 2009


"David J Taylor" 
<david-taylor at blueyonder.not-this-part.nor-this.co.uk.invalid> wrote in 
message news:QbPem.64784$OO7.9961 at text.news.virginmedia.com...
> David Woolley wrote:
>> David J Taylor wrote:
>>
>>>
>>> Anyway, it seems that your understanding is the same as mine, that
>>> even if a router's wide-area IP address changes, NTP on a PC should
>>> keep working.
>>
>> The address shouldn't, of course, change!
>
> Thanks, David.  My understanding is:
>
> - The router's WAN address can and does change.
>
> - The PC's address should not change as long as it is switched on, but it 
> /might/ get a different address at reboot (although often the router will 
> give out the same IP address to the same MAC address within a certain 
> period).
>
>> There are known problems if the address of the actual PC interface
>> changes.
>
> - but this shouldn't /normally/ happen while the PC remains connected to 
> the router.
>
> I'm thinking more and more that this was some sort of one-off issue with 
> the router - perhaps a forced firmware update which caused settings to be 
> lost, and hence did change the PCs address when it renewed its DHCP lease, 
> and hence caused the NTP problem?
>
> Cheers,
> David

You can also give the PC a fixed IP address and not worry about DHCP or
lease time.
Phil






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