IPv4 VLSM Calculator

This application can detect the language you are using (English or French). You can change it manually.
This application can :

1) Calculate informations about network : Network address, Broadcast address, Mask, etc.

2) subnetting network with fixed length (FLSM = Fixed Length Subnet Mask)
a) Case 1:Subnetting according to the number of networks
a) Case 1:Subnetting according to the number of hosts in each network (this number is fixed)

3) Subnetting network with a variable length (VLSM = Variable Length Subnet Mask)