Member Avatar for anshumanverma

I have IPv6 string and I want to make the IPAddress object. I tried the following code

String ipString = "2400:3C00:3FFE:0000:0000:5EFE:8999:48AA";
System.Net.IPAddress address;
IPAddress.TryParse(ipString, out address);

but address.ToString() is returning the value "2400:3c00:3ffe::5efe:137.153.72.170".

Why this has been converted to mix ip?

If i change IP String to "2400:3C00:3FFE:1000:1000:5EFE:8999:48AA" its working properly.

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  • Latest Post Latest Post by Momerath
Member Avatar for Momerath

Ok, the reason why it does that is that the 0:5eFE in the 5/6 spots indicates that this is an Intrasite Automatic Tunnel Addressing Protocol (ISATAP) Address (Tunneling IPv6 traffic on an IPv4 network).

That is the correct format for an ISATAP address, you'll just have to deal with the two formats.

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