3Com S7906E Command Reference Manual page 1939

Table 1-5 TCP/UDP-specific parameters for advanced IPv4 ACL rules
Parameters
source-port operator
port1 [ port2 ]
destination-port operator
port1 [ port2 ]
If the protocol argument is set to icmp, you may define the parameters in the following table.
Function
Defines a UDP or TCP
source port against which
UDP or TCP packets are
matched.
Defines a UDP or TCP
destination port against
which UDP or TCP packets
are matched.
1-15
Description
The operator argument can be lt
(lower than), gt (greater than), eq
(equal to), neq (not equal to), and
range (inclusive range).
port1, port2: TCP or UDP port
number, represented by a number in
the range 0 to 65535. TCP port
number can be represented in words
as follows:
chargen (19), bgp (179), cmd (514),
daytime (13), discard (9), domain
(53), echo (7), exec (512), finger
(79), ftp (21), ftp-data (20), gopher
(70), hostname (101), irc (194),
klogin (543), kshell (544), login
(513), lpd (515), nntp (119), pop2
(109), pop3 (110), smtp (25),
sunrpc (111), tacacs (49), talk
(517), telnet (23), time (37), uucp
(540), whois (43), or www (80).
UDP port number can be
represented in words as follows: biff
(512), bootpc (68), bootps (67),
discard (9), dns (53), dnsix (90),
echo (7), mobilip-ag (434),
mobilip-mn (435), nameserver
(42), netbios-dgm (138),
netbios-ns (137), netbios-ssn
(139), ntp (123), rip (520), snmp
(161), snmptrap (162), sunrpc
(111), syslog (514), tacacs-ds (65),
talk (517), tftp (69), time (37), who
(513), xdmcp (177).
With the range operator, the value of
port2 does not need to be greater
than that of port1 because the switch
can automatically judge the value
range. If the two values are the
same, the switch will convert the
operator range to eq.
Note that if you specify a combination
of lt 1 or gt 65534, the switch will
convert it to eq 0 or eq 65535.