Several IP`s.

ifconfig eth0:0 192.168.0.3 netmask 255.255.255.0 up
route add -net 192.168.0.0 netmask 255.255.255.0 eth0:0

айпишники, интерфейсы и маски меняешь по вкусу...

Ok, I was typed this: %ifconfig eth0 192.168.99.54 netmask 255.255.255.0 up %route add -net 192.16899.65 netmask 255.255.255.255 eth0 %telnet 192.168.99.70 Trying 192.168.99.70... telnet: Unable to connect to remote host: No route to host % May be I do something wrong?

tak, davay po russki :)
eth0 u tebja uje imeet ip1
tvoya set' 192.168.99.0
tebe nado prisvoit' ip2 na eth0:0

delay tak:
ifconfig eth0:0 ip2 netmask 255.255.255.0 up
route add -net 192.168.99.0 netmask 255.255.255.0 eth0:0

ip1 mi ne trogaem, ip2 - eto tot ip-shnik, kotoriy budet vtorim.

Thank you for help to dummy ;))
One comment:
route {skipped} netmask 255.255.255.255 {skipped}
Otherwise it send me to... dublin :))
(tuda blin)