The steps below show how to find the MAC address of the computer in Windows 2000 and XP.1. Click the Start button, and then click Run.2. In the Open: field, type the following text: cmd3. Click the OK button.4. At the command prompt, type the following text to obtain the Physical Address (MACaddress): ipconfig/allCommonly Used PortsServices Protocol Type PortsHTTP (WEBServer) TCP 80FTP TCP 20, 21TELNET TCP 23SMTP (MailServer) TCP 25POP3 (MailServer) TCP 110IRC TCP 6667NNTP (NewsServer) TCP 119Port TriggeringPort triggering allows the router to watch outgoing data for a specific port number. The IPaddress of the computer that sends the data is remembered by the router, so that when therequested data returns through the router, the data will be passed to the specific computer byway of IP address and port mapping rules. The router opens the port when the Port Triggeringhappens. When the computer running the application stops sending the data through this port,the router will close the port.1. Click the PORT TRIGGERING button first.2. Enter the desired name or description in the Application Name field.3. In the Trigger Port field, enter a port number. Check with your Internet applicationprovider for more information on what Trigger Port it is using.