How to get the server IP address i.e IPv4 of server in ASP.NET

Question

0.00/5 (No votes)

See more:

I've tried as below but it's returning ::1 as the IP Address after Hosting the Application. But here when the user requests for the website i want to know whether the user requested to that particular IP or not. So I wanna retrieve the server IPV4 address.

What I have tried:

C#

private String GetIPAddress()   
{
IPServer = string.Empty;   
         IPServer=Convert.ToString(HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]) != null ? Convert.ToString(HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]) : string.Empty;

if (string.IsNullOrEmpty(IPServer))
{
IPServer = Request.ServerVariables["REMOTE_ADDR"];
}                      
return IPServer;
}

Posted 26-Jun-16 19:11pm

JanardhanSharma

Updated 26-Jun-16 19:39pm

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Accepted Answer · 2016-06-26T19:39:00

The server IP address is static - or it should be - meaning it never changes. If it does, then the DNS lookup that converts the URL "www.MyDomain.com" to an IP address would not find the site.
It's complicated, but when the user requests a URL from the browser, the following things happen:
The browser asks the OS for server IP address.
The OS does a DNS lookup and returns the IP address to the browser.
The browser creates a TCP connection to server, and sends an HHTP request via the TCP connection.
The browser receives HTTP response and process it (authorization errors, 404's and suchlike are handled here)
The browser renders response as a page.

All of this uses the IP address, not the URL once the DNS lookup is complete.

You can get the server IP address, that's simple: the FillInDetails method shown here will do it from a server as easily as from a client: Using IP based Geolocation - and why it's pretty much useless.[^]
But it won't change!