Hello, Michelle Konzack a écrit :
I have a client with a SDSL 3.5 Mbit <nerim.net> and only 8 fixed IP's.
Do you mean a /29 IP subnet ?
+---+
ISP 12port |D R|
nerim.net---SDSL---SWITCH---NIC1-|E O|-NIC2-192.168.0.0/255.255.255.192
||| |B U|-NIC3-192.168.0.64/255.255.255.192
Courier 1 _____/ || |I T|-NIC4-192.168.0.128/255.255.255.192
Courier 2 ______/ | |A E|-NIC5-192.168.0.192/255.255.255.192
Apache-SSL ______/ |N R|
+---+
The two physical mailservers (courier) have already there own IP-Address
and the same for the Apache-SSL. the other 5 IP's are associated to the
5 NIC's.
What do you mean by "associated" ? By the way, aren't 3 out of the 8 IP addresses reserved as network, broadcast and gateway addresses ?
[...]
Now I have tried to "ipmask" the four subnets to each one fixed IP
Do you mean "masquerade" ?
but it seems not to work (from inside, speak, no workstation get an internet connection)
There could be many causes. Hard to tell without knowing the Debian router networking setup.