Specifications

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periodically check for servers and may suspend your account if it discovers any
active services at your location. If you are unsure, refer to your ISP.
Default Server IP Address
In addition to the servers for specified services, NAT supports a default server IP
address. A default server receives packets from ports that are not specified in this
screen.
6.3.1 Port Forwarding: Services and Port Numbers
A NAT server set is a list of inside (behind NAT on the LAN) servers, for example,
web or FTP, that you can make accessible to the outside world even though NAT
makes your whole inside network appear as a single machine to the outside world.
Use the SUA Server page to forward incoming service requests to the server(s) on
your local network. You may enter a single port number or a range of port numbers
to be forwarded, and the local IP address of the desired server. The port number
identifies a service; for example, web service is on port 80 and FTP on port 21. In
some cases, such as for unknown services or where one server can support more
than one service (for example both FTP and web service), it might be better to
specify a range of port numbers.
In addition to the servers for specified services, NAT supports a default server. A
service request that does not have a server explicitly designated for it is forwarded
to the default server. If the default is not defined, the service request is simply
discarded.
The most often used port numbers are shown in the following table. Please refer to
RFC 1700 for further information about port numbers.
Application
Outcoming Connections
Incoming Connections
ICQ 98, 99a
Nessuno
Nessuno
NetMeeting 2.1 a 3.01
Nessuno
1503 TCP, 1720 TCP
VDO Live
Nessuno
Nessuno
mIRC
Nessuno
Nessuno
Cu-SeeMe
7648 TCP &UDP, 24032
UDP
7648 TCP &UDP, 24032
UDP
PC AnyWhere
5632 UDP, 22 UDP, 5631
TCP, 65301 TCP
5632 UDP, 22 UDP, 5631
TCP, 65301 TCP
Edonkey/Emule
Nessuno
principalmente 4660-4662
TCP , 4665-4672 UDP
MSN Messanger
Nessuno
TCP da 6891-6900
TCP 1863
TCP 6901
UDP 1863