If you want to test IPv6, without DNS involved, that's easy: ping to 2600::
Fun fact: 2600:: is owned by telco Sprint, and "2600 hertz (2600 Hz) is a frequency in hertz (cycles per second) that was used in telecommunication signaling in mid-20th century long-distance telephone networks using carrier systems". Coincidence ... ?
Linux:
$ ping -c5 2600::
PING 2600::(2600::) 56 data bytes
64 bytes from 2600::: icmp_seq=1 ttl=53 time=13.3 ms
64 bytes from 2600::: icmp_seq=2 ttl=53 time=14.3 ms
64 bytes from 2600::: icmp_seq=3 ttl=53 time=14.4 ms
64 bytes from 2600::: icmp_seq=4 ttl=53 time=14.4 ms
64 bytes from 2600::: icmp_seq=5 ttl=53 time=15.0 ms
--- 2600:: ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4008ms
rtt min/avg/max/mdev = 13.295/14.281/15.014/0.555 ms
Windows:
PS C:\> ping 2600::
Pinging 2600:: with 32 bytes of data:
Reply from 2600::: time=14ms
Reply from 2600::: time=14ms
Reply from 2600::: time=15ms
Reply from 2600::: time=16ms
Ping statistics for 2600:::
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 14ms, Maximum = 16ms, Average = 14ms
PS C:\>
