HP Cisco MDS 9020 Cisco MDS 9000 Family Command Reference Guide - Release 4.x - Page 304
range, established, Cisco MDS 9000 Family CLI Configuration Guide, dest-port-operator
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deny (IPv6-ACL configuration) Chapter 5 D Commands Send documentation comments to [email protected] dest-port-operator dest-port-operator range established Specifies an operand that compares the destination ports of the specified protocol. The operands are lt (less than), gt (greater than), and eq (equals). Specifies the port number of a TCP or UDP port. The number can be from 0 to 65535. A range requires two port numbers. Specifies a range of ports to compare for the specified protocol. (Optional) Indicates an established connection, which is defined as a packet whole SYN flag is not set. Defaults None. Command Modes IPv6-ACL configuration submode. Command History Release 3.0(1) Modification This command was introduced. Usage Guidelines The following guidelines can assist you in configuring an IPv6-ACL. For complete information, refer to the Cisco MDS 9000 Family CLI Configuration Guide. • You can apply IPv6-ACLs to VSAN interfaces, the management interface, Gigabit Ethernet interfaces on IPS modules and MPS-14/2 modules, and Ethernet PortChannel interfaces. However, if IPv6-ACLs are already configured in a Gigabit Ethernet interface, you cannot add this interface to a Ethernet PortChannel group. Caution Do not apply IPv6-ACLs to just one member of a PortChannel group. Apply IPv6-ACLs to the entire channel group. • Use only the TCP or ICMP options when configuring IPv6-ACLs on Gigabit Ethernet interfaces. • Configure the order of conditions accurately. Because the IPv6-ACL filters are applied sequentially to the IP flows, the first match determines the action taken. Subsequent matches are not considered. Be sure to configure the most important condition first. If no conditions match, the software drops the packet. Examples The following example configures an IPv6-ACL called List1, enters IPv6-ACL submode, and adds an entry to deny TCP traffic from any source address to any destination address: switch# config terminal switch(config)# ipv6 access-list List1 switch(config-ipv6-acl)# deny tcp any any The following example removes a deny condition set for any destination prefix on a specified UDP host: switch# config terminal switch(config)# ipv6 access-list List1 switch(config-ipv6-acl)# no deny udp host 2001:db8:200d::4000 any 5-12 Cisco MDS 9000 Family Command Reference OL-18089-01, Cisco NX-OS Release 4.x
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