How to get subnet mask using .net?

Question

I want to get client subnet mask using c#.

How can I get it?

Sonasonant

try this – Emrick

Answer 1

First of all, check NetworkInterface class first. There are a lot of information in it. And these articles will be helpful for you:

• IP Address Calculations with C# (Subnetmasks, Networks, …)
• Get Subnet Mask
• Finding subnet mask from IP4 address using c#

Milled

You are talking about local network interfaces (expect for the last link), not remote... – Steal

@Eugene He didn't said any thing about remote connection. Why downvote? – Elderly

What about IPv6? – Meek

@SonerGönül: I don't recall if I saw it to be honest but I was trying to say you should put something addressing this in your answer :) – Meek