Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

Applying IPv4 Routes

To apply prefix lists to incoming or outgoing IPv4 routes, use the following commands.

• Apply a configured prefix list to all incoming IPv4 IS-IS routes.
  ROUTER ISIS mode
  distribute-list prefix-list-name in [interface]
  Enter the type of interface and the interface information:

  • For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port/subport[/subport] information.
  • For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port information.
  • For a Loopback interface, enter the keyword loopback then a number from 0 to 16383.
  • For a port channel interface, enter the keywords port-channel then a number.
  • For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
• Apply a configured prefix list to all outgoing IPv4 IS-IS routes.
  ROUTER ISIS mode
  distribute-list prefix-list-name out [bgp as-number | connected | ospf process-id | rip | static]
  You can configure one of the optional parameters:

  • connected: for directly connected routes.

  • ospf process-id: for OSPF routes only.

  • rip: for RIP routes only.

  • static: for user-configured routes.

  • bgp: for BGP routes only.

• Deny RTM download for pre-existing redistributed IPv4 routes.
  ROUTER ISIS mode
  distribute-list redistributed-override in