configure iproute delete blackhole

configure iproute delete blackhole [ipv6Netmask] {vr vr_name}


Deletes a blackhole route from the routing table.

Syntax Description

ipv6Netmask Specifies an IPv6 address/prefix length.
vr_name Specifies the VR or VRF from which the route is deleted.


If you do not specify a VR or VRF, the current VR context is used.

Usage Guidelines

A blackhole entry directs packets with a specified destination address to be discarded. Blackhole entries are useful as a security measure or in special circumstances where a specific destination address must be discarded. Blackhole entries are treated like permanent entries in the event of a switch reset or power off/on cycle.


The following example deletes a blackhole route from the routing table for packets with a destination address of 2001:db8::3452, so the packets are no longer discarded:

configure iproute delete blackhole 2001:db8::3452/128


This command was first available in ExtremeXOS 10.1.

Support for IPv6 was added in ExtremeXOS 11.2.

Platform Availability

This command is available on the platforms listed for the IPv6 unicast routing feature in the ExtremeXOS and Switch Engine 31.7 Feature License Requirements document.