Online IP Subnet Calculator

[mazzdulin]

https://www.showinterface.com/

Pretty cool IP subnet calculator

Online subnet calculator that takes input of IP address and subnet mask then returns IP Address in Binary, Subnet Mask in Binary, IP in Hex, Wild Card, Network ID, Network ID in Binary, Network ID CIDR, IP CIDR, Subnet Class, First Octet Range, Private Address (RFC1918), Network Bits, Host Bits, Borrowed Bits, Number of Hosts, Number of Networks, First Available Host in Binary, First Available Host, Last Available Host in Binary, Last Available Host, Broadcast in Binary, Broadcast Address and Host Address Range.

[Dieselboy]

Nice, I like it. One issue I see though is when adjusting the subnet mask. If you enter in a /20 192.168.x.x network and then play with the subnet mask, if you increase the mask to a /24 it wont allow you to decrease it again.

I normally use "subnet-calculator.com"

[config t]

Nice, I like it. One issue I see though is when adjusting the subnet mask. If you enter in a /20 192.168.x.x network and then play with the subnet mask, if you increase the mask to a /24 it wont allow you to decrease it again.

I normally use "subnet-calculator.com"

I use the same one, nearly every day.