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82
802.11n WLAN ADSL2+ Router
Application
TCP port
number
UDP port
number
Trigger re-
quired?
Internet Relay Chat (IRC)
194
194
false
Netmeeting (h323)
1720
N/A
true
N/A
1719
true
1731
522
N/A
false
Real Audio
544 7070 544 6770 false
Ping
N/A (ICMP) N/A (ICMP)
false
Web connections (HTTP, HTTPS)
80, 443
N/A
false
DialPad
51210
N/A
true
N/A
51200
51201
true
FTP
21
N/A
false
Telnet
23
N/A
false
Secure shell (SSH)
22
N/A
false
Windows Media Services
1755
1755
false
Gnutella
6346
N/A
false
Kazaa
1214
N/A
false
Windows Terminal Server
3389
N/A
false
DNS
N/A
53
false
PPTP
1723
1723
false
Internet Key Exchange
N/A
500
false
LDAP
389
N/A
false
GRE
N/A (GRE) N/A (GRE)
false
Databeam (T.120)
1503
N/A
false
You can enable access to a common application from a specific PC on your network.
If you want to allow access to an application that is
not
included on the above list
of common applications, you can create and enable a
custom
application.
Configuring custom applications
If you want to enable access to an application that does not appear on your de-
vice’s default list of common applications you can create a custom application.
In order to create a custom application, you must know:
the protocol used by the application (e.g., TCP, UDP and so on)
•
the primary port or range of ports used by the application
•
whether the application requires a trigger, and if so, the secondary port or
•
range of ports used by the application
the address translation type used by the trigger
•
Your application provider or games manufacturer should provide you with these
details.
Port Forwarding for FTP
In this example configuration, a custom application called
FTP Server
using TCP
port 21 is created.