Ports for the CCMS Agent?

Hello,

we installed a nagios which collects data of the CCMS Agent.

This works fine for systems in our network. If want to add a system behind the firewall, it didn´t work.

Can someone tell me what port CCMS use?

The ID of the system is 00. So I only added the port 3400 to the firewall,

but this seems not enough.

Thanks,

Best Jens