Question

Problem Getting the client's IP via Request.ServerVariables("REMOTE_ADDR")

Asked by: performadsign

We have used this many times. However for this dedicated server.

Request.ServerVariables("REMOTE_ADDR")

Win 2003
IIS 6

Is returning the Server's Internal IP 192.168.1.254 instead of the Client's IP. When Accessed from a different Location it should provide the client IP.

We believe is the Firewall. What do you think is the Problem here? Could it be a server Setting?




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Asked On
2009-03-11 at 07:12:47ID24219822
Tags

ASP.NET

,

Firewall

,

Win 2003

Topics

Network Software Firewalls

,

Microsoft IIS Web Server

,

Programming for ASP.NET

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: x_comPosted on 2009-03-11 at 20:55:42ID: 23864637

Hi performadsign,
Have you try this - HttpContext.Current.Request.UserHostAddress?
eg:
Response.write("Client IP=" & HttpContext.Current.Request.UserHostAddress)

Further details:
http://msdn.microsoft.com/en-us/library/system.web.httprequest.userhostaddress.aspx

 

by: performadsignPosted on 2009-03-12 at 05:42:35ID: 23867520

Thanks. We tried that and it returns the same Firewall IP 192.168.1.254. Instead it should have returned my Client IP which was on a different location than  the server's.

I im calling that page test page from the outside. When we try the very same code on a different server it works just fine (The client's IP is returned correctly)

 

by: x_comPosted on 2009-03-17 at 00:02:35ID: 23905230

Hi performadsign,
I'm not sure if your client access via proxy server, perhaps you can try Request.ServerVariables("HTTP_X_FORWARDED_FOR").

This article explain the details:
http://www.thepcspy.com/read/getting_the_real_ip_of_your_users

20120131-EE-VQP-002

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