Classless IP for Azure Vnet

Question

Hello Techies,

I am Creating a Vnet in Azure and wanted to create 2 subnet one for front end and other for back end:

For VNET i gave address range as 192.168.0.0/25 so that i can use 2 subnet with same address range to avoid wastage of IP's.

Subnet 1) 192.168.0.1 - 192.168.0.126
Subnet 2) 192.168.0.128 - 192.168..254

How can I give address range for Subnet? Is it something like below?

Subnet 1 -> 192.168.0.0/25

Subnet 2 -> 192.168.0.128/25

Thanks in Advance!

Answer 1

Hi @srinath sarman ,

if you wan't two subnets 192.168.0.0/25 and 192.168.0.128/25 (126 host addresses each subnet) you need a vNet with 192.168.0.0/24.
http://jodies.de/ipcalc?host=192.168.0.1&mask1=24&mask2=25

if you have a vNet with 192.168.0.0/25 you could add 2 subnets 62 host each) like this: 192.168.0.0/26 and 192.168.0.64/26
http://jodies.de/ipcalc?host=192.168.0.1&mask1=25&mask2=26

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Regards
Andreas Baumgarten