[VPN] Where is my network?

Nate Harel nharel at nettech-services.net
Tue Feb 4 13:47:30 EST 2003


Hi all,

Forgive my question if it is silly, but I am a relative novice in VPN and 
have run into a bind I can't seem to resolve.

Let me set up the scenario:

I have two small offices set up with a local network and router each.

Office "A" has 3 Win2K machines and a Netgear router on a 
workgroup  (called MyNet) internal network 192.168.0.x

Office "B" has a similar setup, with Win2K and WinXP machines, a Netgear 
router and a workgroup (also called MyNet) internal network 192.168.1.x.

I set up a VPN outgoing connection (using the Microsoft VPN connections - 
PPTP) from B's WinXP machine to A with A generating the address for the 
incoming VPN connection to 192.168.0.100.

All was working well in that B connected to A and was able to transfer 
files etc. I was never able to "see" the A network from B, but I could map 
a drive to A's machine. So that was OK.

I then experimented with the following. I changed B's network address to be 
192.168.0.x.  I made sure that no addresses overlapped so each was unique 
between the two locations.

I was then able to "see" network A with all its computers from the WinXP 
machine on network B.

Yay!!!

But now I can't see the internal B network at all. Doesn't even see itself 
on the network. If I disconnect the VPN connection and click on Network 
Neighborhood, I get an error message
         "Network B is not accessible. You might not have permission to use 
this network resource... The list of servers for this workgroup is not 
currently available."

I tried flushing DNS, turned off the VPN, uninstalled the TCP and 
reinstalled. Nothing works. I can't even ping one of the local machines. 
What did I do wrong? and why is it that I can see the remote network but 
can't see the local one?

I have Netbios over TCP enabled, I am experimenting with LMHOST, but not 
sure why I would need it for local machines.

HELP!!!





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                             Nate Harel
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                 Email:  nharel at nettech-services.net
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