Netbios can't be routed so unless you are using a VPN to bridge the two
networks together than and they are then on the same IP subnet then this
isn't possible.

Christopher Witter 
MCSE, MCP +Internet, ICIS, IIAE

Windows NT Crashed.
I am the Blue Screen of Death.
No one hears your screams.

On Wed, 7 Apr 1999, pdmallya wrote:

> Hi,
> 
> A department in my company wants to permit PC's in our network to access
> files in machines on an external network using Netbios file-sharing. I'm
> being told that this does not open any loopholes in our security, because:
> (a) we can connect our network to the external one using a Checkpoint
> Firewall, with a rule permitting NBT connections from our internal PCs to
> the external machines containing the files. There will be no rule permitting
> a reverse connection.
> (b) there will be no shared disks on our network, and the Checkpoint rules
> will enforce this.
> (c) ergo, our network is not exposed in any way.
> 
> I am not quite convinced - can anyone give me some more information or
> pointers on this?
> 
> TIA & Regards
> 
> Prabhakar D. Mallya
> 
> 
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