How to access network from internet side

Question

Network newbie.
Using BEFW11SW V.4 wireless router on a DSL mosdem to ISP, on small office network - 3 puters on it running XP Pro SP2/3. That side works fine for intranet and internet, mostly. snorton Norton firewall set up OK for access out.
But I have mental block understanding how to get into my office network from outside, i.e. home via the internet. I can find the IP address of the router and the DSL modem while at work. But from home how do I route through to the computers & printers  across the internet to the work network.  What IP address works, and what ports do I try to open from the outside on the road.  Thinking in particular of remote desktop on the road, including access to office computers and printers.
BTW remote desktop, Win Live Messanger, netmeeting all work from the office network outbound through the wireless router and DSL to internet to home puter -
but I want the reverse path. What address/port/redirect ??
Thanks for the kind words.

Answer 1

since you want to use the Remote desktop feature....you will need to forward port number 3389 on you work router....once done...save settings the drawback here is that whenever you want o access the work pc....you will need to know the current IP you are getting from the DSL connection.. to access the work PC , open internet explorer and in the address bar type the following syntax http://your.current.wan.ip:3389