Get IP address of client in JSP

Question

I need to get the IP address of the client in the JSP page. I have tried the following ways:

request.getRemoteAddr()
request.getHeader(\"X_FORWARDED_FOR\")
reque         


        

Answer 1

<%
out.print( request.getRemoteAddr() );
out.print( request.getRemoteHost() );
%>

You may not get the real client IP if a the client is behind a proxy, you will get the IP of the proxy and not the client. However, the proxy may include the requesting client IP in a special HTTP header.

<%
out.print( request.getHeader("x-forwarded-for") );
%>