Dell Force10 S50-01-GE-48T FTOS 8.4.2.6 Command Line Reference Guide for the E - Page 691

deny tcp c e s 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 or • Use the no deny tcp {source address mask | any | host ipv6-address} {destination address | any | host ipv6-address} command. Parameters source address mask any host ipv6-address operator port port destination address bit 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. Range: /0 to /128 The :: notation specifies successive hexadecimal fields of zero. Enter a network mask in /prefix format (/x). Enter the keyword any to specify that all routes are subject to the filter. 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 (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. Enter the application layer port number. Enter two port numbers if using the range logical operand. Range: 0 to 65535. The following list includes some common TCP port numbers: • 23 = Telnet • 20 and 21 = FTP • 25 = SMTP • 169 = SNMP Enter the IPv6 address of the network or host to which the packets are sent in the x:x:x:x::x format followed by the prefix length in the /x format. Range: /0 to /128 The :: notation specifies successive hexadecimal fields of zero. Enter a flag or combination of bits: ack: acknowledgement field fin: finish (no more data from the user) psh: push function rst: reset the connection syn: synchronize sequence numbers urg: urgent field IPv6 Access Control Lists (IPv6 ACLs) | 691