Reference Guide

• If sequence-number is configured, the sequence-number is used as a tie breaker
for rules with the same order.
Related
Commands
deny — configures a filter to drop packets.
permit — configures 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 S4810 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.
S4810
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]
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.
source Enter the IP address of the network or host from which the packets
were sent.
mask Enter a network mask in /prefix format (/x) or A.B.C.D. The mask,
when specified in A.B.C.D format, may be either contiguous or
noncontiguous.
any Enter the keyword any to specify that all routes are subject to the
filter.
host ip-address Enter the keyword host then the IP address to specify a host IP
address.
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