NAS-Identifier instead of IP

[Gunther]

Alexander Clouter wrote:
> Your pants *might* explode but a glance at the source says you could
> either:
>  * set client lifetime to '-1' (means the check in
> 	main/listen.c:client_listener_find() possibly is bypassed),
> 	Alan, possibiliy unintended, made it an int and so setting it to
> 	a negative value could make the lookup expire instantly
>  * subscribe to the school-of-commenting and comment out from
> 	main/listen.c:client_listener_find()
> ----
> if ((client->created + client->lifetime) > now) return client;
> ----

Thanks! Will give it a try (after checking what I am skipping). No explosion
yet.
Currently refreshing my gdb knowledge in listen.c

Cheers