Users Guide

deny ipv6
Configures a filter to drop all or specific packets from an IPv6 address.
Syntax
deny ipv6 [A::B | A::B/x | any | host ipv6–address] [A::B | A:B/x | any | host
ipv6–address] [capture | count [byte] | dscp | fragment]
Parameters
• A::B — (Optional) Enter the source IPv6 address from which the packet was sent and the destination
address.
• A::B/x — (Optional) Enter the source network mask in /prefix format (/x) and the destination mask.
• any — (Optional) Set all routes which are subject to the filter:
•
capture — (Optional) Capture packets the filter processes.
• count — (Optional) Count packets the filter processes.
• byte — (Optional) Count bytes the filter processes.
• dscp value — (Optional) Deny a packet based on the DSCP values, from 0 to 63.
• fragment — (Optional) Use ACLs to control packet fragments.
• host ipv6–address — (Optional) Enter the IPv6 address to use a host address only.
Default Not configured
Command Mode IPV6-ACL
Usage Information OS10 cannot count both packets and bytes; when you use the count byte options, only bytes increment. The
no version of this command removes the filter.
Example
OS10(config)# ipv6 access-list ipv6test
OS10(conf-ipv6-acl)# deny ipv6 any any capture session 1
Supported
Releases
10.2.0E or later
deny tcp
Configures a filter that drops Transmission Control Protocol (TCP) packets meeting the filter criteria.
Syntax
deny tcp [A.B.C.D | A.B.C.D/x | any | host ip-address [operator]] [[A.B.C.D |
A.B.C.D/x | any | host ip-address [operator]] [ack | fin | psh | rst | syn |
urg] [capture | count | dscp value | fragment | log]
Parameters
• A.B.C.D — Enter the IPv4 address in A.B.C.D format.
• A.B.C.D/x — Enter the number of bits to match in A.B.C.D/x format.
• any — (Optional) Enter the keyword any to specify any source or destination IP address.
• host ip-address — (Optional) Enter the keyword and the IPv4 address to use a host address only.
• ack — (Optional) Set the bit as acknowledgement.
• fin — (Optional) Set the bit as finish—no more data from sender.
• psh — (Optional) Set the bit as push.
• rst — (Optional) Set the bit as reset.
• syn — (Optional) Set the bit as synchronize.
• urg — (Optional) Set the bit set as urgent.
• capture — (Optional) Capture packets the filter processes.
• count — (Optional) Count packets the filter processes.
• byte — (Optional) Count bytes the filter processes.
• dscp value — (Optional) Deny a packet based on the DSCP values, from 0 to 63.
• fragment — (Optional) Use ACLs to control packet fragments.
• log — (Optional) Enables ACL logging. Information about packets that match an ACL rule are logged.
• operator — (Optional) Enter a logical operator to match the packets on the specified port number. The
following options are available:
Access Control Lists 1037