Users Guide

interface interface slot/port
2 Congure an IP address for the interface, placing it in Layer-3 mode.
INTERFACE mode
ip address ip-address
3 Apply an IP ACL to trac entering or exiting an interface.
INTERFACE mode
ip access-group access-list-name {in} [implicit-permit] [vlan vlan-range | vrf vrf-range]
NOTE: The number of entries allowed per ACL is hardware-dependent. For detailed specication about entries allowed
per ACL, refer to your line card documentation.
4 Apply rules to the new ACL.
INTERFACE mode
ip access-list [standard | extended] name
To view which IP ACL is applied to an interface, use the show config command in INTERFACE mode, or use the show running-
config command in EXEC mode.
Example of Viewing ACLs Applied to an Interface
Dell(conf-if)#show conf
!
interface GigabitEthernet 1/1
ip address 10.2.1.100 255.255.255.0
ip access-group nimule in
no shutdown
Dell(conf-if)#
To lter trac on Telnet sessions, use only standard ACLs in the access-class command.
Counting ACL Hits
You can view the number of packets matching the ACL by using the count option when creating ACL entries.
1 Create an ACL that uses rules with the count option. Refer to Congure a Standard IP ACL Filter.
2 Apply the ACL as an inbound or outbound ACL on an interface.
3 show ip accounting access-list
EXEC Privilege mode
View the number of packets matching the ACL.
Congure Ingress ACLs
Ingress ACLs are applied to interfaces and to trac entering the system.
These system-wide ACLs eliminate the need to apply ACLs onto each interface and achieves the same results. By localizing target trac, it
is a simpler implementation.
To create an ingress ACL, use the ip access-group command in EXEC Privilege mode. The example shows applying the ACL, rules to
the newly created access group, and viewing the access list.
Example of Applying ACL Rules to Ingress Trac and Viewing ACL Conguration
To specify ingress, use the in keyword. Begin applying rules to the ACL with the ip access-list extended abcd command. To
view the access-list, use the
show command.
Dell(conf)#interface gigabitethernet 1/1
Dell(conf-if-gi1/1)#ip access-group abcd in
Dell(conf-if-gi1/1)#show config
Access Control Lists (ACLs)
115