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Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

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Applying an IP ACL

To apply an IP ACL (standard or extended) to a physical or port channel interface, use the following commands.

  1. Enter the interface number.
    CONFIGURATION mode
    interface interface slot/port
  2. Configure an IP address for the interface, placing it in Layer-3 mode.
    INTERFACE mode
    ip address ip-address
  3. Apply an IP ACL to traffic entering or exiting an interface.
    INTERFACE mode
    ip access-group access-list-name {in} [implicit-permit] [vlan vlan-range | vrf vrf-range] [layer3]
    NOTE
    • The number of entries allowed per ACL is hardware-dependent. For detailed specification about entries allowed per ACL, refer to your line card documentation.
    • One of the usage scenarios is to avoid ACL being applied on the L2 traffic which comes in via ICL. The layer 3 keyword can be used at the VLAN level.
  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

DellEMC(conf-if)#show conf
!
interface TenGigabitEthernet 1/1
  ip address 10.2.1.100 255.255.255.0
  ip access-group nimule in
  no shutdown
DellEMC(conf-if)#

To filter traffic on Telnet sessions, use only standard ACLs in the access-class command.

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