Single Workstation Two Domains

I have two clients that share the same office. They both have their own servers/domains.

Client A -> SBS 2003
Client B -> SBS 2008

Client A needs to access a shared drive on client's B network. VPN is not an option since it's too slow. If I add a second NIC card on client's A workstation and connect it to client's B switch, will I be able to access the required shared drive?

Alternatives are welcomed.

Thanks in advance.
datzent83Asked:
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Nick RhodeIT DirectorCommented:
Technically yes, you might have issues though with that PC with resolution.  Trust relationships are the usual method but you cannot do this with sbs servers.  Would recommend an inbetween device like possibly a dropbox or something.
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datzent83Author Commented:
The shared drive that is required on client A workstation has a program installed on it and a shortcut needs to be pointed to that shared drive.
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wynandkunkelCommented:
Integrate the DNS system (with a stub zone) so the workstation can resolve both SBS Domains by name. Access the share, and if prompted, add username and password.  As previously mentioned SBS does not support inter forest trusts, so this could not be integrated tighter. Another network card would be unnecessary especially if the SBS servers are on the same IP range.
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CompProbSolvCommented:
You can access the shared drive by mapping a drive letter to it with a net use command and then accessing the drive letter.  The problem with automating this is that you will either have the user enter credentials the first time after each reboot that the mapping is done or you will have to put the credentials in a .cmd file in plain text (not very secure!).

If you need more info about net use, just ask.....
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datzent83Author Commented:
The SBS servers are actually on the same IP rage.

So adding another NIC card will work?
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Nick RhodeIT DirectorCommented:
Yes but that PC might get confused if 1 registers before the other.  Lets say a reboot.  What if its trying to authenticate using NIC 2 vs NIC1 so you cannot sign in etc.  I am just pointing out that you might have issues.

I also feel like I got hit with a rubber mallet because I just cannot think of another way at the moment.... :P
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CompProbSolvCommented:
There may be some clever solutions with the second NIC (addressing with a very restricted subnet), but they are really not the correct and reliable way to do it.  

I am assuming that "on the same IP range" means the same subnet.  If that is not clear, let us know the IP address and netmask of both servers.

Am I correct to assume that the two are on physically separate networks?

Is it out of the question to have the IP subnet changed on one of the networks?
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B_KewCommented:
Yes, you can map a drive from a workstation to a server in a different domain. Replace the server name with the IP address to avoid name resolution issues. For example: 192.168.1.1\sharename. Use credentials with the explicit domain\username.
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datzent83Author Commented:
The networks are completely separate. They both have exact same IP range and subnet.

IP: 192.168.1.x
SN: 255.255.255.0
GW: 192.168.1.x

Changing IP subnet is a no go.
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CompProbSolvCommented:
Having the same subnet (192.168.1.x) is going to complicate matters somewhat.

One option is to add a second IP address on a separate subnet to the server with the share (such as 192.168.2.254/24), add the second NIC to the workstation, connect it to the other switch, and configure it with a compatible IP address (such as 192.168.2.250/24).

I checked SBS 2011 and it does allow the second IP address; I assume that 2008 does also.
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