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Figure 6-8. Virtual Server Mapping.
For each service you’d like to set up:
1. Use the Port No. field to select either the WAN or Async (Serial) port.
2. Enter the IP address supplied by your ISP in the External IP field. If your ISP
uses dynamic IP addressing, set this field to 0.0.0.0. Your device will use the
dynamically assigned address when connecting to your ISP.
3. Enter the TCP/IP port number for the service that you will be using for IP
mapping. Common TCP/IP port numbers are listed below:
WWW
Port 80
FTP
Port 20 or 21
SMTP
Port 25
POP3
Port 110
For more information on port numbers, visit http://www.metadigm.co.uk/.
If you would like to map all services for this external IP address to a computer
on your LAN, you can enter port number 0. This means that whenever
anyone accesses your external IP address, they will automatically be “mapped”
to the internal computer that you specify, regardless of what port number
they are using.
4. Enter the Internal IP address of the server to which you want to map the
External IP address.
CHAPTER 6: Broadband Manager
Summary of Contents for LRB500A
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