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VPN and one to one NAT

I do tech work for small businesses and I barley dabble in VPN connections. I'm using a cisco VPN firewall. This one site I have a VPN tunnel is live, but for what ever reason when I use one to one NAT the device on that IP loses internet connection.
I need the one to one NAT for them to be able to ping the device. Any advice as to what I can do to avoid losing internet on this device? Is there another way? Remember I'm bit of a noobie when it comes to this stuff.
Thanks in advance.

John

What is OFFICE 1 External IP (sanitized) and Internal Subnet and then OFFICE 2 External IP and Internal Subnet.

Is this site to site or client to site?

Did you try NAT Transversal On and Off (both ways)

itneedshelp

ASKER

It's site to site. The VPN tunnel is live and working. I just need them to be able to access this one device on the network. It'll work with DMZ host pointing to that address so I know it's the firewall blocking.
The our internal IP, for the device, is 10.1.100.250 and the site subnet is 10.1.10.X.

John

It'll work with DMZ host pointing to that address so I know it's the firewall blocking. <-- I do not try VPN through DMZ - just straight IP address and make sure firewall accommodates.

Did you try NAT Traversal?

itneedshelp

ASKER

I'm not sure this CISCO VPN firewall has a nat traversal setting.
I'm firmilar with it on a sonicwall, but I don't see it as an option on this firewall.

itneedshelp

ASKER

I have a CISCO RV120W VPN firewall.

itneedshelp

ASKER

Looking at other CISCO firewalls I see the NAT Traversal setting in the VPN setup screen but it is not there in this model.

John

Try on the one where you have NAT Traversal and see if that works.

itneedshelp

ASKER

Sorry I was referring to another site. This site only has the CISCO.

John