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Specifically, UDP doesn't provide sequencing of the packets that the
data arrives in. This means that the application program that uses
UDP must be able to make sure that the entire message has arrived
and is in the right order. Network applications that want to save
processing time because they have very small data units to exchange
(and therefore very little message reassembling to do) may prefer
UDP to TCP.
Example:
ID Trigger Port
Trigger
Type
Public Port
Public
Type
Comment
1 28800 UDP 2300-2400, 47624 UDP
MSN Game
Zone
2 28800 UDP 2300-2400, 47624 TCP
MSN Game
Zone
3 6112 UDP 6112 UDP Battle.net
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2-4-2 Virtual Server
The virtual server option allows you to define port number on your router
for redirection to an internal LAN IP address. This feature is useful for
hosting online services such as FTP or Web servers.
Example:
ID Server IP Mapping Port Type Comment
1 192.168.0.20 80 TCP Web Server
2 192.168.0.12 20 TCP FTP Server
3 192.168.0.12 21 TCP FTP Server
4 192.168.0.28 23 TCP Telnet Server
