Nmap scan report for dynamic-ip-adsl.viettel.vn (171.248.121.199)
Host is up (0.19s latency).
All 100 scanned ports on dynamic-ip-adsl.viettel.vn (171.248.121.199) are in ignored states.
Not shown: 100 filtered tcp ports (no-response)

Nmap done: 1 IP address (1 host up) scanned in 20.81 seconds