CCM Server
The CCM Server is a background service associated with the Central Configuration Manager that allows communication between devices in a similar way to that used by the Enterprise Server.
A default CCM Server can be specified that is then applied to all devices added as systems within the Central Configuration Manager. See Central Configuration Manager - Options - Servers panel for more details.
Specifying an alternative CCM Server
You may need to change the CCM Server device should you have another device situated behind a firewall with which you need to communicate.
In these instances, change the CCM Server to the Network Address Translation (NAT) Address that your remote server uses to talk back to your Enterprise Server.