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There are several well known IPv4 addresses on the Internet that people widely use for testing their internet connectivity - 4.2.2.2, 8.8.8.8, 8.8.4.4, etc. But what about IPv6? Does anybody know any easy to remember publicly pingable IPv6 addresses?
666
To ping IPv6 addresses, use the ping6 command along with the interface option -I . Example: ping -I en1 2a03:2880:f12f:83:face:b00c::25de .
An IPv6 address is represented as eight groups of four hexadecimal digits, each group representing 16 bits The groups are separated by colons (:). An example of an IPv6 address is: 2001:0db8:85a3:0000:0000:8a2e:0370:7334.
Both public and private addresses exist in IPv6, but they are totally different in definition and application.
An IPv6 (normal) address has the format y:y:y:y:y:y:y:y, where y is called a segment and can be any hexadecimal value between 0 and FFFF. The segments are separated by colons, not periods.
I think Sprint has one of the shortest:
$ ping6 2600::
PING6(56=40+8+8 bytes) 2a00:8640:1::357b:4afd:7201:61cd --> 2600::
16 bytes from 2600::, icmp_seq=0 hlim=47 time=136.297 ms
16 bytes from 2600::, icmp_seq=1 hlim=47 time=134.229 ms
16 bytes from 2600::, icmp_seq=2 hlim=47 time=134.438 ms
16 bytes from 2600::, icmp_seq=3 hlim=47 time=135.200 ms
16 bytes from 2600::, icmp_seq=4 hlim=47 time=133.569 ms
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