2 LANs one NIC, Windows XP

[LadySlinger]

Hello,

I have heard many rumors on setting up a computer with Windows XP on two LANs...however I have been unsuccessful at getting it to work.

What is it that I need to do? I have one LAN connection set up, but the users aren't well, teknical enough to keep switching IP Addresses back and forth when they want one connection or the other.

Could someone let me know what I need to do?

thanks!
ladyslinger

 

[bcastner]

Look at TCP/IP properties, Advanced.
You should be able to enter multiple IP addresses.

I am uncertain what you are trying to do. Multihomeing an adapter is considered a serious security risk.

 

[LadySlinger]

Yes, bcastner, I'm starting to realise this from other entries in tek-tips.

The advance tab didn't work anyways. One LAN is a DHCP with only a gate way and the other is LAN is static IP. When I put in both, nothing happens for either LAN.

Thanks!

 

[bcastner]

With DHCP on one side, you obviously cannot specify to fixed IPs unless your network admin will let you do so and reserve the IP for you.

The other option is to add a second adapter, enable IP forwarding, and create a hardware bridge.

XP will require a small registry edit to enable the routing from the second adapter:

http://support.microsoft.com/defaul...port/kb/articles/q315/2/36.asp&NoWebContent=1

This second adapter will get you, I suspect, where you want to go. But you will find most IT people extremely reluctant to permit you do to this without an incredibly good reason.

Perhaps it would be time to have a good talk with your Tech Folk, as there are likely safe alternatives for what you want. Ask about VPN, or the way in which the Domain can be configured to allow common access to the network resources.

 

[LadySlinger]

Thanks...again. Basically its by choice per office on internet access. Each office that is set up is not provided with internet access, instead they are provided with intranet access, so that they can connect to internal web sites.
If they want internet access, the office has to pay $800 for the router and then the additional $100-150 monthly internet fees.
Some of our offices are small and don't the revenue of other offices that can afford the above amount, so they go with their own internet service provider.

I agree that a VPN connection should be looked into by our IT group and I have suggested that. However $800 per office apparently looks better to the uppers of the company than spending $5000 - 10,000.
I guess I just find it disappointing when a company doesn't take advantage of the technology that is available.
*steps off soapbox*

well, that all said and done, I'll see a workaround.

Thanks again!

LS