[Discuss] config doubts

[Rama]

morgen!

i wanted to check some stuff but some servers seem out of service for 
the moment.

i have this IP setup on an AP which is wired from the flat under me to 
the one on the roof (wrt54g), so it's one of the IP's on the block for 
clients I guess:

addr:193.238.159.18   Bcast:193.238.159.255  Mask:255.255.252.0

and this is on the eth1 from the FF ap:

addr:193.238.156.231  Bcast:193.238.159.255  Mask:255.255.252.0

plus this on the vlan0:

addr:193.238.156.232  Bcast:193.238.159.255  Mask:255.255.252.0

default gateway
0.0.0.0 193.238.156.109 0.0.0.0  UG    4      0        0 eth1

1) so the first question is if those settings are correct

2) which is the ip block i have? yves showed it to me long time ago, but 
i can't find it on the frontend. where should i find it?

3) to use clients connecting over wifi to the ap directly, they need to 
be setup ad-hoc and just take any free IP addr from my block?

4) what about the "mobile IPs" I've heard there were not left anymore.
so to connect to any other FF node what should the procedure be?

5) if i get pointed to the proper documentation to figure and clear out 
about this it would be already great!

thanks in advance und shönnentag!
rama