[Kea-users] Invalid DHCP Server Identifier: 0.0.0.0

[atwardowski at choopa.com]

On 2016-08-30 16:37, Francis Dupont wrote:
> server-id 0.0.0.0 is considered as invalid by only some clients
> but not all... Anyway there are at least 2 tickets (#3280 and
> #4063) asking for a configurable server-id...
> 
> Regards
> 
> Francis Dupont <fdupont at isc.org>

Even if it's not configurable, I think it should at least use the IP 
address of the interface the request was received on instead of 0.0.0.0.

 From glancing at the code, I think the issue might be that 
IP_RECVDSTADDR is not being set on the socket, as documented here:

https://www.freebsd.org/cgi/man.cgi?query=ip&apropos=0&sektion=4&manpath=FreeBSD+10.3-RELEASE+and+Ports&arch=default&format=html