by hi,
I am trying to configure a linux box for masquerading/firewalling.
the configuration is not the classical one and I would need some advises.
now I could just buy a 2nd nic card, but I am curious and I would like to
make it work that way.
- adsl modem is connected to the hub via uplink
- the linux box (myoldbox) is connected to the hub via eth0
(debian stable 2.2.18pre21 running pppoe 2.6)
+ the connection to my isp goes through the ppp interface ppp0
+ eth0 is the only ethernet interface (1 nic)
- other machines are connected to the hub (1 nic per machine)
q1? is this configuration as safe, efficient, reliable as having the
gateway 'physically' routing to the private network (with 2 nics) ?
and that is my current problem
q2? in this configuration, how do I configure the routes, translation and
ipchains ?
the private network mask is 192.168.0.0
loopback interface is up
eth0 on myoldbox is up with address 192.168.0.1
eth0:0 on myoldbox is up with address 192.168.0.2
( I guess this alias interface is needed in that case for
routing purpose, not sure ? )
thanks for your help, any pointer appreciated,
nag