Configuring Non-NAT (Netgear DG834 -> Netscreen NS5GT)
Posted on 2005-04-13
Apologies if this is more of a hardware question.
We've recently had to swap out a BT ADSL router (5861?) in favour of a new Netgear DG834 ADSL router. During this operation our external IP's supplied by Demon have also changed (don't ask). The new router needs to be configured for Non-NAT and needs to connect to our existing Netscreen NS5GT router/VPN/firewall solution.
The previous BT box had, as far as I'm aware, only the external IP (ie it didn't have one of our internal 10.0.0.X IP's) and this routed straight through to the Netscreen firewall. As I could never look at how the BT box was set up I am a little unsure as to how to configure the DG834 for Non-NAT, straight through routing. I have disabled the NAT option, but still no traffic will pass any further then the Netscreen firewall.
So far I have configured the DG834 to correctly connect to the ADSL (I can ping out from diagnositcs) and I have assigned it the router IP given by our ISP. I have, however, assigned this to both the external and internal addresses, as I was unsure as to how to get the Non-NAT setup passing straight through.
Any guidence would be greatly appreciated!