nanog mailing list archives

Re: IPv6 woes - RFC


From: Jim Young via NANOG <nanog () nanog org>
Date: Sun, 26 Sep 2021 02:47:41 +0000

On Saturday, September 25, 2021 21:55 Chris Adams <cma () cmadams net> wrote: 

More than once, I've had to explain why zero-filling octets, like
127.000.000.001 (which still works) or 008.008.008.008 (which does not),
is broken.

Zero filling IPv4 is just evil. How about this party trick?

% ping -c 1 010.010.010.010
PING 010.010.010.010 (8.8.8.8): 56 data bytes
64 bytes from 8.8.8.8: icmp_seq=0 ttl=116 time=27.496 ms

--- 010.010.010.010 ping statistics ---
1 packets transmitted, 1 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 27.496/27.496/27.496/0.000 ms
% 


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