Command:

ip classless


Mode:

Router(config)#

Syntax:

ip classless

no ip classless

Syntax Description:

This command has no arguments or keywords.


Command Description:

At times the router might receive packets destined for a subnet of a network that has no network default route. To have the Cisco IOS software forward such packets to the best supernet route possible, use the ip classless global configuration command. To disable this feature, use the no form of this command. When this feature is disabled, the software discards the packets when a router receives packets for a subnet that numerically falls within its subnetwork addressing scheme.

Example:
Router(config)#ip classless

Misconceptions:
None

Related Commands:
ip subnet-zero

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