btw
C:\Users\Steve>ping www.google.com
Pinging www.google.com [2404:6800:4005:808::2004] with 32 bytes of data:
Reply from 2404:6800:4005:808::2004: time=5ms
Reply from 2404:6800:4005:808::2004: time=6ms
Reply from 2404:6800:4005:808::2004: time=5ms
Reply from 2404:6800:4005:808::2004: time=6ms
C:\Users\Steve>ping www.google.com -4
Pinging www.google.com [172.217.24.196] with 32 bytes of data:
Reply from 172.217.24.196: bytes=32 time=2ms TTL=55
Reply from 172.217.24.196: bytes=32 time=1ms TTL=55
Reply from 172.217.24.196: bytes=32 time=2ms TTL=55
Reply from 172.217.24.196: bytes=32 time=1ms TTL=55
天與地