Users Guide

• The order option works across ACL groups that are applied on an interface via
the QoS policy framework.
• The order option takes precedence over seq sequence-number.
• If you do not configure sequence-number, the rules with the same order value
are ordered according to their configuration order.
• If you configure sequence-number, the sequence-number is used as a tie
breaker for rules with the same order.
Related
Commands
• deny — configure a filter to drop packets.
• permit — configure a filter to forward packets.
Extended IP ACL Commands
When an ACL is created without any rule and then applied to an interface, ACL behavior reflects an implicit
permit.
The following commands configure extended IP ACLs, which in addition to the IP address, also examine the
packet’s protocol type.
The platform supports both Ingress and Egress IP ACLs.
NOTE
: Also refer to the Commands Common to all ACL Types and Common IP ACL Commands sections.
deny
Configure a filter that drops IP packets meeting the filter criteria.
Syntax
deny {ip | ip-protocol-number} {source mask | any | host ip-
address} {destination mask | any | host ip-address} [count [byte]
| log] [dscp value] [order] [monitor] [fragments] [no-drop]
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 no deny {ip | ip-protocol-number} {source mask | any |
host ip-address} {destination mask | any | host ip-address}
command.
Parameters
ip Enter the keyword ip to configure a generic IP access list. The
keyword ip specifies that the access list denies all IP protocols.
ip-protocol-
number
Enter a number from 0 to 255 to deny based on the protocol
identified in the IP protocol header.
Access Control Lists (ACL) 219