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Connecting two different LANs

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5 replies

by donalconlon

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Hello,
We have two different private lan's in our building. The first has the range ip of 192.168.128. class c and the second has an ip address range of 176.33.4 class c. How can we give access from the second lan into the first lan. We want to do this as easily and cheaply as possible. Thanks.

5 replies

by voldar

It's as simple as u can read this message. You have to domains I suppose. First, set a RRAS server with two nick cards (one with the IP from the 176... subnet, and other from 192...subnet), and set the router obtion, so that any package from a subnet to be forwarded to the other subnet. Check the communication between the two subnets by ping command. If all is okay, create two wins servers, (one in each subnet), and let replication occure between. You also can create a trust relationship between the two domains that you have.
That's it. Good luck!

by radiic

Although answer 1 is Theoretically correct, here is how you do it.

Take a cheap pc and put 2 nics in it.
Load W2K server.
Run regedit and add this key

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"IPEnableRouter"=dword:00000001

Then you will need to manualy set the ip for each nic. ( i would suggegest 192.168.128.1 and 176.33.4.1 if there not in use.) classs c sub.
Also you will want to make the default gateway the oppisite nic ip. IE. when configing the 176 adapter make its GW the 192 ip and vice versa.

The next step is simple enough. Plug a patch cable from the correct nic into the segments. If your having trouble identifying the nic, heres a little trick i use, goto Properties of Network Neighborhood, and right click one of the Lan connections and click disable, then look at the nics and see which one the link lights went out on. Then enable it. Also you might want to rename the LANs there like 192 lan and 176 lan. Last nice step to take is to put a lable on the back of the machine on each nic stating what they are. That way in 5 months from now when your troubleshooting a network problem you wont go "which one of these was which lan." ;)

Thats the fat of it. You do know that this machine has to be somewhere where you can plug into both nets. IE. a cat 5 run from each Hub/Switch. If your lucky both are in the same server room.

Good Luck
Rad

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