OpenSuse ICS

Setup ICS

yast - > network devices - > network card module, a good static IP for your internal NIC would be 192.168.0.254

Dont Forget The Gateway on the internet enabled NIC

IP Forwarding

You will not be able to perform this step if you are using Network Manager and not Ifup.

Open YaST -> Network Devices -> Network Settings -> Routing and check the box marked Enable IP Forwarding

Click Finish

Select the External and Internal interfaces

Open YaST - > Security & Users - > Firewall

In the Interfaces section:

Select the network card that you connect to the internet through, click change and set it to External Zone

Select the network card that is connected to the other machine(s) on your internal network that you want to share the internet to and set it to Internal Zone

Enable Masquerading

Still in the Firewall YaST Module locate the Masquerading section.

Check the box labeled Masquerade Networks

Click Next and Finish

DHCP

YaST - > Network Services - > DHCP server

• Set the active interface to your internal network card

• Choose an internal domain name

• Fill in the name server IPs with the values you can find by running cat /etc/resolv.conf

• Set the Default Gateway to the IP address of your SUSE box on the internal network

From OPENSUSE.org