I've done a bit more testing, and it appears that the connection to the port is being blocked (or at least it isn't open). If you look at the screenshot of my forwarding rules, you'll see that I'm forwarding port 80 to an active web server on our LAN. And if you look at the screenshot of my firewall general setup, you'll see that I've designated port 8080 as the remote management port. (FYI, I've tried a number of different ports, none of which work.) I'm now testing the connections by telneting in from a computer completely outside and separate from our LAN. When I try to telnet in over 80, I can see that the port is open:
[root:httpdocs]$ telnet 71.245.177.10 80
Trying 71.245.177.10...
Connected to 71.245.177.10.
Escape character is '^]'.
^]
telnet> quit
Connection closed.
However when I try and telnet in over 8080, the connection is never established:
[root:httpdocs]$ telnet 71.245.177.10 81
Trying 71.245.177.10...
telnet: connect to address 71.245.177.10: Connection timed out
FYI I get the same result when using online checkers like canyouseeme.org. Is there something else in the configuration of the router that is preventing the port from being opened, or overriding the remote management setting? As I mentioned in the original post, remote management was working fine until I configured the DMZ setting. I've tried disabling DMZ but that didn't fix it.
Let me know if there is any other testing that I could do that would help in diagnosing this problem. Thanks.
