I opted for a clean 7.2 rebuild of our server. Using SuSE 6.4, this computer served as Internet masq, printer server, ssh2 server, etc for a small Mac/Win art shop. I choose minimum install and added SuSEfirewall. I got it to work once, but then foolishly decided to go for that "killer clean install", after having experimented with many various settings. Well, I have not gotten it to work since, and I'm pretty sure I used the basic settings as in the manual when it did work. It seemed so easy! eth0 24.4.x.x @home cable connection with static IP eth1 192.168.1.100 internal network Everybody can ping each other: ifconfig looks decent enough based on what I know (I'm graphics/video/network admin... so, discount my admin skills mightily). 24.4.x.x 24.4.126.129 my gateway 192.168.1.10 my w2k Athlon 192.168.1.51 my Mac Powerbook 500 No masq from my internal machines. They point to 192.168.1.100 as gateway and are using the same configuration as on the previous year-long running server. ---- Clean install, minimum + SuSEfirewall set-up ethernet cards, check ping and ifconfig edit rc.config to turn on IP forwarding edit /etc/rc.config.d/firewall.rc.config FW_DEVWORLD eth0 FW_DEV_INT eth1 FW_ROUTE yes FW_MASQUERADE yes FW_MASQ_NETS 192.168.1.0/24" reboot ---- I have also tried leaving FW_MASQ_NETS empty entering FW_MASQ_NETS 192.168.1.0/8" entering FW_MASQ_NETS 192.168.0.0/24" I don't really understand the netmask variation, but seems like one of those should work. How can I further troubleshoot this? Thanks!