jQuery? checking if IP address are within the range

I want to be able to check that two IP address are within the range. So if a user enter something like 10.10.10.0 and 10.10.10.10 then it will pass the validation and enter that address into the database. Then want to check if a users enter something like 10.9.10.10 that would be invalid and I would ask the user to correct the error. My thinking is that I would convert the IP address into long and then make sure the endIpAddrToLong is greater then the startIpAddrToLong

Is this the correct Logic to do something like that? Can I just convert the IP’s to longs and compare them

    $('#button-validate').on('click', function() {
       let startIpAddr = $("#txtstartIpAddr").val();
       var startIpAddrToLong = parseInt(IpAddressToLong(startIpAddr));
       
       let endIpAddr = $("#txtendIpAddr").val();
       var endIpAddrToLong = parseInt(IpAddressToLong(endIpAddr));
      
       if (endIpAddrToLong >  startIpAddrToLong) {
            console.log('success');
          $("#validate").val("True");
        }
       
    });
    
    function IpAddressToLong(ip){
            return ip.split('.').map((octet, index, array) => {
        return parseInt(octet) * Math.pow(256, (array.length - index - 1));
            }).reduce((prev, curr) => {
        return prev + curr;
        });

}

working sample
http://jsfiddle.net/tjmcdevitt/mdkx9h0w/31/