Are configurations on the firewall necessary?

Only the TCP ports 6005 and 6006 and 6011 (only when using an MDM server) have to be released for communication . This apllies as followed:

incoming                                                    outgoing
agent                              6006                                                           6005
server                             6005                                                           6006
console                           6006                                                           6005
MDM Server                   6011                                                                –
The ports can be changed arbitrarily and at any time . Also separate ports for agent and console, and an extra https port are possible for an advanced configuration.