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Cisco Subnet Calculator

Subnet any IP and get IOS-ready ip address and OSPF network commands.

Network192.168.1.0/24
Subnet mask255.255.255.0
Wildcard0.0.0.255
Usable range192.168.1.1 - 192.168.1.254
Hosts254
IOS ip addressip address 192.168.1.1 255.255.255.0
IOS networknetwork 192.168.1.0 0.0.0.255 area 0

How to read the result

The first usable address fills the IOS ip address interface command; the network address plus wildcard fills the OSPF network statement.

Example

192.168.1.10/24 → ip address 192.168.1.1 255.255.255.0

FAQ

Which address goes in ip address?

A usable host address (usually the first usable) plus the subnet mask.

What goes in the network statement?

The network address plus the wildcard mask, e.g. network 192.168.1.0 0.0.0.255 area 0.