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DNS Problem with a W2K Server

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7 replies

by office

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I?m running a W2K server. There are 3NIC installed. Each of them got there own IP-Group.
NIC A)192.168.100.199 /255.255.255.0
is connected to the Machine 192.168.100.1 (is a Linux Server-with a ISDN Dial in)
its possible for the server to reach this Linux Server but not possible for him to come into the Internet
NIC b)192.168.101.199 /255.255.255.0 is serving a part of 50 PC?s.
NIC C)192.168.102.199 /255.255.255.0 is serving also a part of 50 PC?s

For all NIC?s I use 192.168.100.1 as Gateway and DNS = 129.27.2.3
so the W2K Server should work as router for LAN B and C over LAN A

Please tell me if you have an idea how to solve the problem. Because when I connect a normal PC on LAN A with IP Adress 192.168.100.5/255.255.255.0 and say gateway is 192.168.100.1 and use the DNS Server 129.27.2.3 the PC come into the internet.

7 replies

by mpdcsup

The NIC's on LAN B need to use 192.168.101.199 as the default gateway. Likewise, the NIC's on LAN C need to use 192.168.102.199 as the default gateway.

by office

thats clear for me but my main problem is that the W2K server couldn?t reach the internet.

by duskos

IP addresses on your Win2k server are from the private range. Therefore, your Win2k cannot access Internet directly, but via Linux.
Your Linux must run some sort of NAT service or Proxy service.
Nic b) and c) cannot have default gateway 192.168.100.1 because this address range is not on their subnet. It's better to leave default gateway on NIC's b) and c) empty and only have default gateway on NIC a) which should point to Linux server.

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