I have this routing problem between my NT 4.0 systems that is driving me nut. We have a couple of Windows NT 4.0 servers and a Novell Netware 3.12 serving just over 100 users on our LAN. We have a WAN link of 64kbps leased line connecting the head office to the two branches via a 2600 series Cisco router. The problem now is this: My office just deployed a wireless radio link via an ISP to the Internet and there started my headache. For security reasons, we installed a multi-homed Windows NT 4.0server and dedicated it for proxy service excluding all range of IP addresses that are not part of our LAN. The IP adresses for this server are 192.0.0.199 mask 255.0.0.0 default gateway 192.0.0.250 (LAN) and 63.130.101.236 mask 255.255.255.224 default gateway 63.130.101.225 (from the ISP). Now, the PDC can’t ping Internet(external)IP addresses using the multi-homed proxy server NT 4.0 system as gateway. The PDC has been configured with two gateways (192.0.0.250- for the WAN LINK and 192.0.0.199- to the proxy server system). The route to the DNS servers (63.227.234.195 & 210) has also been added to the PDC interface yet it can’t ping them. tracert and NSLOOKUP brings no result. domain name resolution is not possible.
The PDC can ping the two interfaces of the proxy server system. Can somebody help?