OT: Linking a new network to the LAN

[Jay Ashworth]

----- Original Message -----
> From: "Boaz Bezborodko" <boaz at mirrotek.com>

> I have a machine using an Allen-Bradley PLC that is addressed to
> 10.1.1.x while my LAN is 192.168.1.x. I need to let the machine's
> designer have access to the PLC via the internet in order to make a
> small change to the program. I have set up a VPN server connection on
> my computer for him to access the network, but he still can't access the
> PLC. His A-B support told him that I would need to add a router to the
> machine and set it up to look at my network as a WAN while using port
> forwarding to access the PLC.

Bill's right; if there's no particular reason why the device needs to be
in 10.1/16, you should move it to the 192.168.1/24 network the rest of your
LAN is already using.

Do note that if the remote guy's LAN is also 192.168.1/24, that won't work,
unless your VPN router is quite intelligent (I think that's called NAT444).

When you say "I have set up a VPN server connection on my computer", it's not
at all clear what you mean by that; incoming VPN sessions generally terminate
on the network's edge router, not on a workstation.

Can you clarify some?

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                       jra at baylink.com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com         2000 Land Rover DII
St Petersburg FL USA      http://photo.imageinc.us             +1 727 647 1274