enable isis area originate-default

enable isis area area_name originate-default {ipv4 | ipv6}


This command causes the specified IS-IS router process to generate the default route in its LSPs.

Syntax Description

area_name Specifies the name of the IS-IS router process that should generate the default route.
ipv4 Specifies that the router process should generate the default IPv4 route.
ipv6 Specifies that the router process should generate the default IPv6 route.


IPv4: Disabled

IPv6: Disabled

Usage Guidelines

This applies to level 2 routing only. In contrast, level 1 routers compute the default route as the nearest attached L1/L2 router. When enabled, the router process generates an IPv4 default route unless the ipv6 option is specified. Only one level 2 router in the IS-IS domain should be configured to originate a default route. This command has no effect on router processes that are already enabled for default route origination or on router processes that are level 1-only.


The following command directs the IS-IS process named areax to generate the default IPv4 route in it‘s LSPs:

enable isis area areax originate-default


This command was first available in ExtremeXOS 12.1.

Platform Availability

This command is available on platforms with a Core or Premier license as described in the ExtremeXOS and Switch Engine 31.7 Feature License Requirements document.