Multiple Nagios Servers at multiple locations

I am wanting to place a server or something to relay my information to one central nagios server. How should I go about doing this? I don’t want the central server to poll over port 443 or 80 as I have these forwarded to other machines. I am just geting into Nagios and would appreaciate any write ups or docs to help along the way.
Thanks

You might want to take a look at the Distributed Monitoring section of the documentation at nagios.sourceforge.net/docs/3_0/distributed.html