Open files stored on different subnet

Can anyone offer a solution to allow students XP laptops on my network, with a 10.18.x.x address, to open read only files stored in a shared folder on a server with a 10.4.x.x address? i have been told not to add another network card to server (it's a win2003 DC) and FTP doesn't really work without copying the file to laptop first which isn't practical.

thanks 4 any ideas.
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PeteAsked:
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ccomleyConnect With a Mentor Commented:
You can "logically" add a second "card" to the server by adding a second network address to the existing card.

In the Properties page for the NIC, click on TCP/IP V4, Properties, you'll see where it's been assigned 10.4.1.2 (e.g.) and netmask and gateway. Now click on Advanced. You can add a *second* Ip address here, so add 10.18.3.4 (say), and the suitable netmask. You can also add gateways but you don't need to, the server will continue to access the outside world via the Default Gateway it's already been given, AND it now knows how to talk to anyone on 10.18.*.*, but it doesn't need to know about any gateway that may be on 10.18 net and giving it one may cause strange effects. (Unless you WANT it to be able to useboth gateways, but that takes more planning).

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PeteAuthor Commented:
will there be any kind of routing through that server and it's new 10.18.x.x  IP address into other shares (or anything else) on the 10.4.x.x network?
on the same issue what NTFS permissions do I need to REMOVE on a shared folder to prevent users not in an 'allowed' group accessing it (everyone\authenticated users?)
 
thanks for the reply
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ccomleyCommented:
NT ll route between networks - check the routing table (command prompt- ROUTE PRINT) - any routes you don't WANT it to act upon, remove with the ROUTE command.

Permission wise, the easiest way to protect a given Share is to remove the "domain\users" group from it, to do this, you need to go into Advancecd, click the box to STOP it "inheriting" permissions frm above, chooseto "copy" the current perms. When it's finished, remove domain/users, then manually add back in any actual users (or groups) you DO want to be able to use the share.

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