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6. TCP/IP Port List for Internet Service
The list of TCP/IP Port for Internet service is as following table. Please note that the list is just
for your reference. You may check the service provider’s manual to see more details.
Service Name
TCP
UDP
Notes
AOL
5190-5193
5190-5193
American OnLine
AOL ICQ
5190, dyn >=1024
Message
AOL Instant Messenger
5190
5190
American OnLine
Citrix ICA
1494, dyn >=1023
1604, dyn >=1023
Remote application access
DirectX Gaming
47624, 2300-2400
47624, 2300-2400
many network games
Distributed.Net RC5/DES
2064
Distributed computation
DNS
53
Domain name Service
Doom
666
666
Network game
FTP
21
File Transfer Protocol
Glimpseserver
2001
Search engine
Gopher
70
H.323 Host Call
1720
1720
H.323 host call
HTTPs
443
Secure HTTP (SSL)
ichat client, server
4020
4020
Chat rooms
ICU II
2000-2003
Videoconferencing
iSpQ
2000-2003
Videoconference
LDAP
389
389
Lightweight Directory Access Protocol
Mirabilis ICQ
dyn >=1024
4000
Locator, chat
MS ICCP
1731
1731
Audio call control (Microsoft)
MS Netmeeting
dyn >=1024,
dyn >=1024
Video conference
MS NetShow
1755
1755
Streaming video
MSN Gaming Zone
28800-29000
28800-29000
Network Game
MSN Messenger
1863
Instant messenging
Netscape Conference
6498, 6502
2327
Audio conference
NNTPs
563
Secure NNTP news (SSL)
Palm Computing Network Hotsync
14237
14238
Data synchronization
pcAnywhere
5631
5632
Remote control
POP3
110
Post Office Protocol Version 3
QuickTime 4
RTSP
RTP
Streaming audio, video
Real Audio & Video
RTSP, 7070
6970-7170
Streaming audio and video
Remotely Possible (ControlIT)
799
Remote control software by CA
RTSP
554
Real Time Streaming Protocol