[Dnsmasq-discuss] 3 secs dhcp delay

[Harald Dunkel]

On 1/18/19 10:36 AM, Harald Dunkel wrote:
> 
> Do you think dnsmasq could watch/ping its IP address range while it is
> idle, caching the result? It might examine the local arp table as well:
> If there is an entry with matching MAC and IP address, isn't it reasonable
> to assume that the IP address is not in use somewhere else?
> 

PS: I found https://tools.ietf.org/html/rfc5227 on the web. Interesting
read, but probably it won't help to avoid the delay.

I would agree that it should the job of the client to make sure that
the IP address is not in use yet, and to reply with a DHCPDECLINE to
the dhcp server. But AFAICS strongswan's dhcp plugin doesn't, and
surely it is not alone.

Will dnsmasq offer another IP address in case it receives a decline?


Thanx anyway. Keep on your good work

Harri