Show IP Address on Visualforce Page Salesforce

This is one of the thing, that previously I never thought that it would be help full, but at some point it is.

When you want some where to show the current user's Ip address on page, OR weather you want to restrict a User of a particular IP then you can use this small code snippet with some booming functionality.

Apex Class ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

public class IPAddress {

    //Variable to hold the IP Address value for current logged in user
    public String ipAddress {get; set;}

    //Constructor
    public IPAddress() {

        //Map to hold current URL header parameters
        Map<String, String> mapHeaders = ApexPages.currentPage().getHeaders();  

    //Proceed further only and only if map of header parameter have not null value with it
        if(mapHeaders != null) {

            ipAddress = mapHeaders.get('True-Client-IP');
            if(ipAddress == null){
                ipAddress = mapHeaders.get('X-Salesforce-SIP');
            }
        }
    }
}

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VisualForce page ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

<apex:page controller="IPAddress">

<h1> Current Logged In User IP Address ::::: </h1>   {!IpAddress}

</apex:page>

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and here it is..!!!!

HAPPY CODING...!!!