access-list (extended)
protocol
source
source‐wildcard
operator port
destination
destination‐
wildcard
insert | replace
entry
move destination
source1 source2
Defaults
If insert, replace, or move are not specified, the new entry will be appended to the access list.
If source2 is not specified with move, only one entry will be moved.
If operator and port are not specified, access parameters will be applied to all TCP or UDP ports.
Mode
Global configuration: C2(su)‐>router(Config)#
Usage
Access lists are applied to interfaces by using the ip access‐group command as described in "ip
access‐group" on page 23‐79.
23-78 Authentication and Authorization Configuration
Specifies an IP protocol for which to deny or permit access. Valid values
and their corresponding protocols are:
•
ip ‐ Any Internet protocol
•
udp ‐ User Datagram Protocol
•
tcp ‐ Transmission Control Protocol
•
icmp ‐ Internet Control Message Protocol
Specifies the network or host from which the packet will be sent. Valid
options for expressing source are:
•
IP address or range of addresses (A.B.C.D)
•
any ‐ Any source host
•
host source ‐ IP address of a single source host
(Optional) Specifies the bits to ignore in the source address.
(Optional) Applies access rules to TCP or UDP source or destination port
numbers. Possible operand is:
•
eq port ‐ Matches only packets on a given port number.
Specifies the network or host to which the packet will be sent. Valid options
for expressing destination are:
•
IP address (A.B.C.D)
•
any ‐ Any destination host
•
host source ‐ IP address of a single destination host
(Optional) Specifies the bits to ignore in the destination address.
(Optional) Inserts this new entry before a specified entry in an existing
ACL, or replaces a specified entry with this new entry.
(Optional) Moves a sequence of access list entries before another entry.
Destination is the number of the existing entry before which this new entry
will be moved. Source1 is a single entry number or the first entry number in
the range to be moved. Source2 (optional) is the last entry number in the
range to be moved. If source2 is not specified, only the source1 entry will be
moved.
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