On 12/26/2018 7:40 PM, Chris Green wrote:
> While looking through the example dnsmasq.conf file comments with a
> view to seeing if there was anything relevant to my recent question
> about losing DHCP configuration when re-connecting I found:-
>     # Set the DHCP server to authoritative mode. In this mode it will barge in
>     # and take over the lease for any client which broadcasts on the network,
>     # whether it has a record of the lease or not. This avoids long timeouts
>     # when a machine wakes up on a new network. DO NOT enable this if there's
>     # the slightest chance that you might end up accidentally configuring a 
>     # server for your campus/company accidentally. The ISC server uses
>     # the same option, and this URL provides more information:
>     # http://www.isc.org/files/auth.html
>     #dhcp-authoritative
> The link http://www.isc.org/files/auth.html is broken and, although I
> searched around a bit in isc.org I couldn't find anything relevant.

Simply look for 'authoritative DHCP server' on the internet machine.

> By the way, while I'm about it would this possibly be the answer to my
> DHCP re-connect problem?  "This avoids long timeouts when a machine
> wakes up on a new network." does sound a bit hopeful.  However I'm not
> really clear what the sentence after means so I'm not sure if I can
> try this safely or not.

If you have only one DHCP server on your network, you should be fine
trying '--dhcp-authoritative'.

John Doe

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