Configure Iproute Add Blackhole - Extreme Networks ExtremeWare Command Reference Manual

configure iproute add blackhole

configure iproute add blackhole <ip address> <mask>
Description
Adds a blackhole address to the routing table. All traffic destined for a configured blackhole IP address
is silently dropped, and no Internet Control Message Protocol (ICMP) message is generated.
Syntax Description
ip address Specifies an IP address.
mask Specifies a subnet mask.
Default
N/A
Usage Guidelines
A blackhole entry configures packets with a specified MAC 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 adds a blackhole address to the routing table for packets with a destination
address of 100.101.145.4:
configure iproute add blackhole 100.101.145.4
History
This command was available in ExtremeWare 2.0.
This command was added to the "e" series of switches in ExtremeWare 7.1e.
Platform Availability
This command is available on all platforms.
ExtremeWare 7.7 Command Reference Guide
configure iproute add blackhole
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