[Astlinux-users] NAT rule

2012-12-10 Thread Tom Chadwin
Hello all Just lost main connection to a remote site, but the Astlinux box (also on the LAN) on its own line is up and reachable. I'm therefore trying to set up a port forward on the Astlinux box to allow me to RDP from here to a Windows box on the LAN. Have added a "NAT EXT>LAN" rule. This bring

Re: [Astlinux-users] NAT rule

2012-12-10 Thread Lonnie Abelbeck
Hi Tom, The Firewall tab's "NAT EXT:" entry specifies which external IP the rule applies to, by default it is 0/0 which is any external IP. You probably only have one external IP address. So, something like this would work for RDP -- NAT EXT-LAN Protocol: TCP Src: 0/0 Port: 3389 Dst: 192.16

Re: [Astlinux-users] NAT rule

2012-12-10 Thread Tom Chadwin
Hi Lonnie OK, so that's not the explanation of why my RDP session would not connect. Basic networking question follows: This Astlinux box is not the gateway for our Windows boxes. Does this mean that, even if I set a port-forward up right on the Astlinux box (which I think I did), there is no way

Re: [Astlinux-users] NAT rule

2012-12-10 Thread Lonnie Abelbeck
Tom, I see what you are trying to do, but the source address of your NAT EXT-LAN packet to the PC will be the address the PC sends the reply to, and that will no doubt go via your default gateway... which is down. Though, if you had a VPN server enabled on the AstLinux box then you should be a

Re: [Astlinux-users] NAT rule

2012-12-10 Thread Tom Chadwin
Understood. No, we have no VPNs set up on the Astlinux box - the firewall on the main line (which was down) is the VPN endpoint. I shall look at setting up an OpenVPN for this very situation in the future. Thanks for the suggestion. Thanks again Tom -Original Message- From: Lonnie Abelb