Reference Guide

permit tcp
Configure a filter to pass TCP packets that match the filter criteria.
S5000
Syntax
permit tcp {[source address | mask ]} [any] {[ host ipv6-
address | [operator ][port port] | [destination address ] |
[ bit ]} [count] | [byte] | [log] | [monitor]
To remove this filter, you have two choices:
• Use the no seq sequence-number command if you know the filter’s
sequence number.
• Use the permit tcp {[source address | mask ]} [any] {[ host
ipv6-address | [operator ] | [port port] | [destination
address ] | [ bit ]} [count] | [byte] | [log] | [monitor]
command.
Parameters
source address Enter the IPv6 address of the network or host from which the
packets were sent in the x:x:x:x::x format followed by the
prefix length in the /x format. The range is /0 to /128. The ::
notation specifies successive hexadecimal fields of zero.
mask Enter a network mask in /prefix format (/x).
any Enter the keyword any to specify that all routes are subject
to the filter.
host ipv6-
address
Enter the keyword host followed by the IPv6 address of the
host in the x:x:x:x::x format. The :: notation specifies
successive hexadecimal fields of zero.
operator (OPTIONAL) Enter one of the following logical operand:
• eq = equal to
• neq = not equal to
• gt = greater than
• lt = less than
• range = inclusive range of ports (you must specify two
port for the port parameter.)
port port Enter the application layer port number. Enter two port
numbers if using the range logical operand. The range is 0 to
65535.
The following list includes some common TCP port
numbers:
• 23 = Telnet
• 20 and 21 = FTP
• 25 = SMTP
• 169 = SNMP
IPv6 Access Control Lists (IPv6 ACLs)
663