Tom's Hardware > Forum > Old Man/Woman's Club > Other > Another LAN question
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Here's our issue. We have a handful of computers offsite. They are on a LAN, and have internet access. They cannot hit our intranet through the internet (need ports open on the other firewall, working on that). So they dial into our network. Problem is that when they dial in, they lose connection to the local network there (including printing and quick internet). But when they aren't dialed, they can't hit all of our internal websites or download e-mail.

They keep their local IP address, but they are then unable to ping the local computers. I imagine the traffic is trying to go over the modem.

Please assist!!

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There are several ways to do it, all include setting up some kinds of routing.

Easiest would be get a low end router that supports a serial connection and connect it up and set it to route only specific traffic down the modem line and to dial on demand (course then you'd have several people sharing a single modem connection.)

Alternately you could probally do some routing on the windows machines in question to correctly route traffic as needed. Check the default routes (route print on windows, /sbin/route on unix) while connected through the modem line and also while not connected. You'll probally notice a change in default route. You could stick specific routing in the table for the interal network and then route the traffic out the internet interface by default.

The easiest way, if you have hardware that supports it, would be setup a vpn tunnel over the internet so all the hosts at their location can act like they're constantly connected to your local network. We do alot of this with cisco pix 501's at the customer sites that connect back into a our pix 515 (you can do it with anything that can terminate the vpn correctly though... most routers support some kind of tunneling.)

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Reply to shadus

Well, being as we have two large corporations here, and it is coming into peak time for both of them, there likely won't be any changes made soon, but we are trying to use a VPN connection. There are two reasons it may not work.

Company B may need to open some ports in their firewall. This seems to be the more likely problem, but they may not do it until after New Year.

Our company may be filtering out Corporate traffic, so you could VPN over Comcast, but not over Company B's Internet connection. I am not to sure about it, but I know that they won't look into this until we can verify that all correct ports are open. I personally feel that a Corporate network would be way more secure...

Please tell me more about the routing you mentioned (route print?)

Thanks!

Why should I vote when my choices are a douche and a turd?
[/Stan Marsh]

:lol: <font color=red>{</font color=red><font color=blue>FPS</font color=blue><font color=red>}</font color=red> :lol:
Now with more FPS power! A+ and Net+ certified!

Reply to JustPlainJef
Tom's Hardware > Forum > Old Man/Woman's Club > Other > Another LAN question
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