Realizar un escaneo de puertos básico (nmap -F 186.4.105.3)
Nmap scan report for 186.4.105.3
Host is up (0.16s latency).
Not shown: 99 closed tcp ports (reset)
PORT STATE SERVICE
179/tcp open bgp
Nmap done: 1 IP address (1 host up) scanned in 1.80 seconds