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Get the correct IP address

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Get the correct IP address ASP Programming forum discussing Active Server Pages coding techniques and problem solving methods. Use VBScript or Jscript to make dynamic web applications.
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  #1  
Old July 10th, 2009, 08:20 AM
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Get the correct IP address
hi

I'm using this code:
Code:
<%=Request.ServerVariables("REMOTE_ADDR")%>
in the .asp webpage installed on the WIN2000 webserver to show via browser the internal IP address from the workstations.
Normally works, but the problem is, sometimes it shows proxy IP address instead of the workstation.
Howto solve this problem?
Last edited by ccc : July 10th, 2009 at 08:26 AM.
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  #2  
Old July 10th, 2009, 01:27 PM
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Quote:
Originally Posted by ccc
hi

I'm using this code:
Code:
<%=Request.ServerVariables("REMOTE_ADDR")%>
in the .asp webpage installed on the WIN2000 webserver to show via browser the internal IP address from the workstations.
Normally works, but the problem is, sometimes it shows proxy IP address instead of the workstation.
Howto solve this problem?
You can't always get a reliable ip address from the web server.
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I didn't attend the funeral, but I sent a nice letter saying I approved of it. --Mark Twain
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  #3  
Old July 10th, 2009, 02:34 PM
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Quote:
Originally Posted by Doug G
You can't always get a reliable ip address from the web server.


but I don't need ip address from the web server, I need the address from the workstation.
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  #4  
Old July 10th, 2009, 09:31 PM
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I mean the webserver (where your asp code is running) can't always return the workstations IP reliably. So there is no answer to your question that I know.
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  #5  
Old July 11th, 2009, 05:41 PM
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Code:
<%=Request.ServerVariables("REMOTE_ADDR")%>


This returns the IP address of the visitor's computer. If your visitor is viewing your website from Proxy then it is sure that you wont get his real IP address(ISP's)
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  #6  
Old July 13th, 2009, 07:36 AM
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Quote:
Originally Posted by webhostingdir
Code:
<%=Request.ServerVariables("REMOTE_ADDR")%>


This returns the IP address of the visitor's computer. If your visitor is viewing your website from Proxy then it is sure that you wont get his real IP address(ISP's)


in asp.net u can find out if customer is using Proxy server.
Code:
if (Context.Request.ServerVariables["HTTP_VIA"] != null) 
            {
                IP = Context.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
            }
            else
            {
               IP = Context.Request.ServerVariables["REMOTE_ADDR"].ToString();
            }


hope this will helps you.
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  #7  
Old July 13th, 2009, 06:11 PM
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I have tested your code. But on both cases(1st ISP's IP, 2nd Proxy), "else" statements are executed. Can you advice?
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  #8  
Old July 13th, 2009, 09:19 PM
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Not all proxies will send you the forwarded IP - if they don't, it's impossible for you to get.
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Old July 14th, 2009, 08:47 AM
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Quote:
Originally Posted by kirank
in asp.net u can find out if customer is using Proxy server.
Code:
if (Context.Request.ServerVariables["HTTP_VIA"] != null) 
            {
                IP = Context.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
            }
            else
            {
               IP = Context.Request.ServerVariables["REMOTE_ADDR"].ToString();
            }


hope this will helps you.


thx, I'll try but howto put this code to asp webpage?
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