Config Iproute Add Blackhole - Extreme Networks ExtremeWare Command Reference Manual

config iproute add blackhole

config 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
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:
config iproute add blackhole 100.101.145.4
History
This command was available in ExtremeWare 2.0.
Platform Availability
This command is available on all platforms.
ExtremeWare Software 7.0.0 Command Reference Guide
Specifies an IP address.
Specifies a subnet mask.
config iproute add blackhole
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