iasc

"iasc", an Ip-address And Subnet-mask Calculator.

This tool is still beta!!

Completed part

• Prefix to Subnet-mask
• Subnet-mask to Prefix

Incomplete part

• IPv6 support
• Calculate the number of hosts
• Calculate Network address and Broadcast address
• Calculate the range of IP addresses
• and etc...

Usage

iasc --conversion-type prefix-to-subnet --prefix-length 27
# Output
255.255.255.224

iasc --conversion-type subnet-to-prefix --subnet-mask 255.255.240.0
# Output
20