Reference Guide

506 | Intermediate System to Intermediate System
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Use the following commands in ROUTER ISIS mode to apply prefix lists to incoming or outgoing IPv4
routes.
IPv6 routes:
Use these commands in ADDRESS-FAMILY IPV6 mode to apply prefix lists to incoming or outgoing
IPv6 routes.
Note: These commands apply to IPv4 IS-IS only. Use the ADDRESS-FAMILY IPV6 mode shown later to
apply prefix lists to IPv6 routes
Command Syntax Command Mode Purpose
distribute-list prefix-list-name in [interface] ROUTER ISIS Apply a configured prefix list to all incoming
IPv4 IS-IS routes.
Enter the type of interface and slot/port
information:
• For the Loopback interface, enter the
keyword loopback followed by a number
from 0 to 16383.
• For a port channel, enter the keyword
port-channel followed by a number from
1 to 255.
• For a 10-Gigabit Ethernet interface, enter
the keyword TenGigabitEthernet followed
by the slot/port information.
• For a VLAN, enter the keyword vlan
followed by a number from 1 to 4094.
distribute-list prefix-list-name out [bgp
as-number | connected | ospf process-id | rip |
static]
ROUTER ISIS Apply a configured prefix list to all outgoing
IPv4 IS-IS routes. 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
distribute-list redistributed-override in
ROUTER ISIS Deny RTM download for pre-existing
redistributed IPv4 routes
Note: These commands apply to IPv6 IS-IS only. Use the ROUTER ISIS mode previously shown to apply
prefix lists to IPv4 routes.