The network configuration

You need to network interfaces in the router. One has to be connected with the modem (eth0=GATEWAY to the Internet) and the other one (eth1) has to connected to internal network . In the example-configuration I use the networkrange 192.168.20.x for the network-configuration. The router gets the IPADDR 192.168.20.1 (=eth0) and 192.168.20.5 (=eth1). The internet connection will be established with a modem. To reduce error-sources, we edit the config-files directly.

I use vi as editor. Feel free to use anotherone.

log in as root at the router.

DEVIVE=eth0

BOOTPROTO=static

BROADCAST=192.168.20.255

IPADDR=192.168.20.1

NETMASK=255.255.255.0

NETWORK=192.168.20.0

ONBOOT=yes

in the same way :

DEVIVE=eth1

BOOTPROTO=static

BROADCAST=192.168.20.255

IPADDR=192.168.20.5

NETMASK=255.255.255.0

NETWORK=192.168.20.0

ONBOOT=yes

NETWORKING=yes

HOSTNAME=thisisthename

FORWARD_IPV4=true ########### only seen at mandrake

if there is a GATEWAY-Entry, comment it out #.

restart network, with the new confihuration.

shows the actual nw-configuration.

delete the default route:

/sbin/route del default

Linux:

DEVICE=eth0

ONBOOT=yes

BOOTPROTO=static

IPADDR=192.168.20.50

NETMASK=255.255.255.0

GATEWAY=192.168.20.5

check the following file :

NETWORKING=yes

HOSTNAME=another

GATEWAY=192.168.20.5

service network restart

Windows :

Properties NW-Environment --> TCP/IP NW-Interface :

IP-Address: 192.168.20.50

Gateway : 192.168.20.5

DNS: 194.25.2.129 you may have another ip-address

Domain: t-online.de you may have another one

and of course - reboot !

test the network :