Command
IP Subnet-Zero
Use
This command allows you to use the zero subnet for your IP addressing. This command is enabled by default on all devices.
Syntax
Router(config)#ip subnet-zero
Example
In the below example, we will display the configured DHCP information on R3.
R3(config)#no ip subnet-zero R3(config)#int fa0/0 R3(config-if)#ip add 10.0.0.1 255.255.255.0 Bad mask /24 for address 10.0.0.1 R3(config-if)#ip subnet-zero R3(config)#int fa0/0 R3(config-if)#ip add 10.0.0.1 255.255.255.0 R3(config-if)#