4
Command Line Interface
Example
This example accepts any incoming packets if the source address is within subnet
10.7.1.x. For example, if the rule is matched; i.e., the rule (10.7.1.0 & 255.255.255.0)
equals the masked address (10.7.1.2 & 255.255.255.0), the packet passes through.
Console(config-ext-acl)#permit 10.7.1.1 255.255.255.0 any
Console(config-ext-acl)#
This allows TCP packets from class C addresses 192.168.1.0 to any destination
address when set for destination TCP port 80 (i.e., HTTP).
Console(config-ext-acl)#permit 192.168.1.0 255.255.255.0 any
destination-port 80
Console(config-ext-acl)#
Related Commands
access-list ip (4-89)
show ip access-list
This command displays the rules for configured IP ACLs.
Syntax
show ip access-list {standard | extended} [acl_name]
- standard – Specifies a standard IP ACL.
- extended – Specifies an extended IP ACL.
- acl_name – Name of the ACL. (Maximum length: 16 characters)
Command Mode
Privileged Exec
Example
Console#show ip access-list standard
IP standard access-list david:
permit host 10.1.1.21
permit 168.92.0.0 0.0.15.255
Console#
Related Commands
permit, deny 4-90
ip access-group (4-92)
ip access-group
This command binds a port to an IP ACL. Use the no form to remove the port.
Syntax
[no] ip access-group acl_name {in | out}
- acl_name – Name of the ACL. (Maximum length: 16 characters)
4-92