3Com OfficeConnect 3C100XF Cli User's Manual - page 223
Filter Examples
27-13
The following filter file rule example would accept only UDP packets that have a
destination port number that is in the range of 24-39:
#filter
IP:
010 AND udp-dst-port>23;
020 ACCEPT udp-dst-port
030 DENY;
The following filter file rule example would reject TCP and UDP packets:
#filter
IP:
010 REJECT protocol = tcp;
020 REJECT protocol = udp;
Standard Port Numbers
The following table contains information on standard port numbers for some
common services.
Table 27-4
TCP
UDP
Description
20
-
File Transfer Protocol (data)
21
-
File Transfer Protocol (control)
23
-
Telnet
25
-
Simple Mail Transfer Protocol
43
43
Who Is
53
53
Domain Name Service
-
69
Trivial File Transfer Protocol
70
70
Gopher
79
79
Finger
80
-
World Wide Web HTTP
88
88
Kerberos
110
-
Post Office Protocol
111
111
Sun Remote Procedure Call
113
113
Authentication Service
119
-
Network News Transfer Protocol
123
123
Network Time Protocol
161
161
SNMP (Total Control Manager)
162
162
SNMP trap
220
220
Interactive Mail Access Protocol v3
512
-
remote process execution
513
-
remote login (rlogin)
-
513
remote who (rwhod)
514
-
remote command (rsh)
-
514
Syslog accounting
515
-
lpd spooler