ISP provides Static IP. Based on MAC address, so that forever the end user have Static IP (to do mail/www servers)
Step 1: So as a user we purchased this module called Static IP using MAC address
Step 2: We bought DELL R310 which has 1 MAC Address and that is our mail/web server remain active/alive about 1 year with the IP 81.82.xxx.2. (configured as Static IP, because purpose is static)
Step 3: Since few days, 81.82.xxx.2 is not traceroute able nor its pingable
Step 4: Question. When ISP supplier promise you will get Static IP for lifetime using MAC Address does that mean, configuration in the server has to be STATIC or Auto DHCP?