What ports does Xserve usesfor Global range?

Question

I am setting the modem to for ward to global ports range but not sure what the range is.:(

Answer 1

AFAIK, strictly, "modems" don't forward ports. "Modems" and "bridges" are comparatively transparent devices; from the perspective of a network protocol, such electronic devices are largely indistinguishable from the equivalent wiring, for instance. "Modem" devices that provide a combination of modem, firewall and IP router can forward ports. And forwarding all ports through a firewall is usually a bad idea.
Modem: MOdulator-DEModulator. They're at the lowest levels of the classic Seven-Layer Network Model, and below routing and firewalls and such. But I digress.
The typical case is forwarding a select few ports, such as port 80 for http web traffic.
Each port opened through the firewall should be justified, as each port forwarded will be attacked.
Some "modem" devices (those which have firewall and IP routing capabilities) can have something they call "global ports", and that's seemingly how the particular vendor, um, allows the end-user the joy of researching and identifying the protocol-specific ports for the task at hand.
With this scheme, the end-user gets to go look up the ports for the particular service, and fill those in for whatever you're looking to forward.
For forwarding http using port 80, that would be the "global port range" of 80 to 80, for instance.
[Start reading here|http://portforward.com/routers.htm] for your specific "modem" device.
I'm taking a very wild guess here around what you're doing and what you're looking at. If I've guessed wrong, some background, some more words around the goal, and some specific device identifications would be helpful in addressing your question.