ping 是使用的是 ICMP（internet control message protocol），没有端口一说。（TCP, UDP 才有端口一说）
许多防火墙中可以单独配置允许或禁止 ICMP。
Some people may use the phrase "ping a port" informally meaning to open a TCP connection to that port and see if a response is received, but practically speaking, there is no ping port.