How can I use telnet to check my firewall port?

When you have a Master on one side of your firewall, and have configured 9968 to be allowed on the firewall, you can try to telnet to the Master Agent port to see if you can get through the firewall as planned, BEFORE performing a local install of your Leaf Agent. Something like:

> Telnet ip-address-of-master port-number-of-master

For Example;

> Telnet xxx.xxx.xxx.xxx 9968

If unable to connect to the IP:Port, you should get a message of some kind.

With a successful connection, you'll get a blank screen but no message, as shown below. Notice the telnet command is shown in the title bar. Close the window, and do your Local Leaf Agent install, the Leaf should be able to register with the Master successfully (in a DMZ use IP addresses for Master and Leaf, not Netbios names).