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copied!<p>So you want to be able to look at the IP address of the client consuming the web service, from within the service?</p> <p>You could create a class like this that examines some of your server variables, some of which pull data from HTTP headers. I've found that just looking at HTTP_X_FORWARDED_FOR and REMOTE_ADDR does the trick (ex. in C#):</p> <pre><code>public class IP { public static String UserHostAddress { get { return HttpContext.Current.Request.UserHostAddress; } } public static String REMOTE_ADDR { get { return HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } } public static String HTTP_X_FORWARDED_FOR { get { return HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; } } public static String HTTP_CLIENT_IP { get { return HttpContext.Current.Request.ServerVariables["HTTP_CLIENT_IP"]; } } public static String HTTP_X_FORWARDED { get { return HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED"]; } } public static String HTTP_X_CLUSTER_CLIENT_IP { get { return HttpContext.Current.Request.ServerVariables["HTTP_X_CLUSTER_CLIENT_IP"]; } } public static String HTTP_FORWARDED_FOR { get { return HttpContext.Current.Request.ServerVariables["HTTP_FORWARDED_FOR"]; } } public static String HTTP_FORWARDED { get { return HttpContext.Current.Request.ServerVariables["HTTP_FORWARDED"]; } } public static String IP_ADDRESS { get { if (HTTP_X_FORWARDED_FOR != null) { return HTTP_X_FORWARDED_FOR; } return REMOTE_ADDR; } } } </code></pre>

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