Accessing web url from internet or intranet

Question

User-1254072439 posted

How do i check if user is accessing web url from internet (outside the office network) or without internet (LAN-inside office network ).

Answer 1

User-369506445 posted

hi

please try below code

public bool CheckClientIsOnLAN()
        {
            string ipString = System.Web.HttpContext.Current.Request.UserHostAddress;
            byte[] ipBytes = System.Net.IPAddress.Parse(ipString).GetAddressBytes();
            int ip = System.BitConverter.ToInt32(ipBytes, 0);

            // your network ip range
            string ipStringFrom = "192.168.1.0";
            byte[] ipBytesFrom = System.Net.IPAddress.Parse(ipStringFrom).GetAddressBytes();
            int ipFrom = System.BitConverter.ToInt32(ipBytesFrom, 0);

            string ipStringTo = "192.168.1.255";
            byte[] ipBytesTo = System.Net.IPAddress.Parse(ipStringTo).GetAddressBytes();
            int ipTo = System.BitConverter.ToInt32(ipBytesFrom, 0);

            bool clientIsOnLAN = ipFrom >= ip && ip <= ipTo;

            return clientIsOnLAN;
        }

if your request be local return true otherwise return false

Answer 2

User-1254072439 posted

Thanks for your reply, is there anyway without checking IP address

Answer 3

User-369506445 posted

what is you problem with IP address . Eventually, all address spaces are converted to IP address