Administrator Guide
byte (OPTIONAL) Enter the keyword byte to count bytes processed by the filter.
Defaults Not configured.
Command Modes ACCESS-LIST
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S6100–ON.
9.8(1.0) Introduced on the Z9100–ON.
9.0.2.0 Introduced on the S6000.
8.4.2.1 Introduced on the S-Series.
8.2.1.0 Introduced on the E-Series TeraScale.
7.8.1.0 Introduced on the C-Series.
7.4.1.0 Introduced on the E-Series TeraScale Added the monitor option.
deny tcp
Configure a filter that drops TCP packets that match the filter criteria.
Syntax
deny tcp {source address mask | any | host ipv6-address} [operator port [port]]
{destination address | any | host ipv6-address} [bit] [operator port [port]]
[count [byte]] | [log] [monitor]
To remove this filter, you have two choices:
• Use the no seq sequence-number command syntax if you know the filter’s sequence number
• Use the no deny tcp {source address mask | any | host ipv6-address}
{destination address | any | host ipv6-address} 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 ports for the port command
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
220 Access Control Lists (ACL)