[RESOLVED] NAT not nice

[Silk]

I am so agonizingly close to getting this to work..:-/. I am running windows 2k server. I have two networks cards installed named internal and external. The external card is configured with the static IP, subnet and gateway from my ISP. I can browse the internet fine on my server UNTIL I enable NAT. The second card is configured at 192.168.0.1 with 255.255.255.0 as the subnet and the ip address of my external card as the gateway. As soon as I enable NAT, i lose all internet connectivity. I've tried using the built in DHCP with NAT, I've configured DHCP on the server and used that and I've also tried static configurations. I have DNS installed, but it's just acting as a forwarder to my ISP. There has got to be something simple I'm missing. If I pull the second card out of the computer or disable RRAS, I get internet back on the server. Thanks in advance for any help,

Silk

[Tubbs McFatty]

Maybe the gateway should be the internal nic (192.168.x.x)?

On my home network, the machines use dhcp from the firewall/router to get their ip address. They always show the internal ip as the gateway, not the external ip. The ip address assigned from the ISP is probably dynamic.

[silencio]

Have you tried enabling internet connection sharing? You can manually configure your NICs for NAT and shared access but the hang up always seems to be the routing table. I haven't used 2000s ICS enough to know exactly what is supposed to be in the routing tables but I can tell you that it's easier to let ICS set this up than it is to configure it manually... am i repeating myself? i need coffee.

[Silk]

I got it working finally! I'm still not quite sure exactly what was wrong, but when I blew out the whole RRAS setup and did it again selecting internet connection sharing instead of manual configuration, everything worked. I've been through everything in the MMC and can't see a single thing different, but..shrugs, oh well. it works..hehe. Thanks for all the suggestions guys!

Silk

[korpse]

ICS is pretty weak compared with pure NAT through RRAS. If I were you I'd make sure ICS was disabled and try resetting up RRAS, it should work fine the way you said in your first post. I know its possible because I am running DNS (forwarding), DHCP, and RRAS NAT on my Windows 2000 server and it works perefectly.