How to check validation of IP Address in jquery

Question

I need to add IP Validation in my project .Is there any function in jquery or in jquery mobile.So that it will validate the in put field?

Thanks

Answer 1

You can use regular expressions to test if an IP is valid:

"127.0.0.1".match(/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/);

Answer 2

/* 
    validIpAddressRegex = "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$";
    validHostnameRegex = "^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$";
*/
$.validator.addMethod('ipChecking', function(value) {
    //var ip = "^(?:(?:25[0-5]2[0-4][0-9][01]?[0-9][0-9]?)\.){3}" +"(?:25[0-5]2[0-4][0-9][01]?[0-9][0-9]?)$";
    validIpAddressRegex = "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$";
    ipCheckFlag = true;
    ipLists = value.split(',');
    for(ip=0; ip<ipLists.length; ip++){
        if(!ipLists[ip].trim().match(validIpAddressRegex)){
            ipCheckFlag = false;
        }
    }
    return ipCheckFlag;     
});

link

Answer 3

This function returns true if IP address is in correct format otherwise it returns false:

function isIpAddressValid(ipAddress) {
    if (ipAddress == null || ipAddress == "")
        return false;
    var ip = '^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}' +
        '(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$';
    if (ipAddress.match(ip) != null)
        return true;
}

Answer 4

I use jQuery Validation Plugin by:

$.validator.addMethod('IP4Checker', function(value) {
        var ip = "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$";
            return value.match(ip);
}, 'Invalid IP address');

$('#form').validate({
    rules:{
        ip:{
            required: true,
            IP4Checker: true
        }
    }
});

Hope helpful.

Refer to: Regular expression to match DNS hostname or IP Address?

Answer 5

Addition to answer by @RAVI MONE for IP address with subnet mask:

$.validator.addMethod('IP4Checker', function(value) {
    var ip="^$|([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\." +
      "([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\." +
      "([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\." +
      "([01]?\\d\\d?|2[0-4]\\d|25[0-5])((/([01]?\\d\\d?|2[0-4]\\d|25[0-5]))?)$";
    return value.match(ip);
}, 'Invalid IP address.');

Answer 6

Hi this is the best Solution and Mask for IP Adress

$.validator.addMethod('IP4Checker', function(value) {
        var ip = /^(\d|[1-9]\d|1\d\d|2([0-4]\d|5[0-5]))\.(\d|[1-9]\d|1\d\d|2([0-4]\d|5[0-5]))\.(\d|[1-9]\d|1\d\d|2([0-4]\d|5[0-5]))\.(\d|[1-9]\d|1\d\d|2([0-4]\d|5[0-5]))$/; 
        return value.match(ip);
        }, 'Invalid IP address');

    var $validator = $("#addCardForm").validate({
          rules: {
              txtIP: {
              required: true,
              IP4Checker: true
              }

          }
        });