Configure Iproute Delete Blackhole - Extreme Networks ExtremeWare XOS Command Reference Manual

configure iproute delete blackhole

configure iproute delete blackhole [<ipv6Netmask>] {vr <vrname>}
{multicast-only | unicast-only}
Description
Deletes a blackhole route from the routing table.
Syntax Description
ipv6Netmask
vrname
multicast-only
unicast-only
Default
If you do not specify a virtual router, the current virtual router 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. Blackhole entries are never aged out of the forwarding database (FDB).
Example
The following command 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
History
This command was first available in ExtremeWare XOS 10.1.
Support for IPv6 was added in ExtremeWare XOS 11.2.
Platform Availability
This command is available on all platforms.
ExtremeWare XOS 11.3 Command Reference
Specifies an IPv6 address/prefix length.
Specifies the virtual router to which the route is added.
Specifies only multicast traffic for the route.
Specifies only unicast traffic for the route.
configure iproute delete blackhole
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