nanog mailing list archives
Re: IPv6 woes - RFC
From: James R Cutler <james.cutler () consultant com>
Date: Sat, 25 Sep 2021 20:57:21 -0400
On Sep 25, 2021, at 8:44 PM, Valdis Klētnieks <valdis.kletnieks () vt edu> wrote:
On Sat, 25 Sep 2021 23:20:26 +0200, Baldur Norddahl said:We should remember there are also multiple ways to print IPv4 addresses. You can zero extend the addresses and on some ancient systems you could also use the integer value.19:17:38 0 [~] ping 2130706433 PING 2130706433 (127.0.0.1) 56(84) bytes of data. 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.126 ms 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.075 ms 64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.063 ms 64 bytes from 127.0.0.1: icmp_seq=4 ttl=64 time=0.082 ms ^C --- 2130706433 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 84ms rtt min/avg/max/mdev = 0.063/0.086/0.126/0.025 ms Works on Fedora Rawhide based on RedHat, Debian 10, and Android 9. That's a bit more than just 'some ancient systems' - depending whether it works on other Android releases, and what IoT systems do, we may have more systems today that support it than don't support it.
It also works on this 'ancient' macOS Monterey system. Last login: Sat Sep 25 20:50:00 on ttys000 xz4gb8 ~ % ping 2130706433 PING 2130706433 (127.0.0.1): 56 data bytes 64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.047 ms 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.111 ms 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.103 ms 64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.109 ms ^C --- 2130706433 ping statistics --- 4 packets transmitted, 4 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 0.047/0.092/0.111/0.026 ms xz4gb8 ~ %
Current thread:
- Re: IPv6 woes - RFC, (continued)
- Re: IPv6 woes - RFC Saku Ytti (Sep 28)
- Re: IPv6 woes - RFC Joe Maimon (Sep 24)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 24)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 24)
- Re: IPv6 woes - RFC borg (Sep 25)
- Re: IPv6 woes - RFC Baldur Norddahl (Sep 25)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 25)
- Re: IPv6 woes - RFC Baldur Norddahl (Sep 25)
- Re: IPv6 woes - RFC Owen DeLong via NANOG (Sep 25)
- Re: IPv6 woes - RFC Valdis Klētnieks (Sep 25)
- Re: IPv6 woes - RFC James R Cutler (Sep 25)
- Re: IPv6 woes - RFC Andy Smith (Sep 25)
- Re: IPv6 woes - RFC Chris Adams (Sep 25)
- Re: IPv6 woes - RFC Masataka Ohta (Sep 26)
- Re: IPv6 woes - RFC Jim Young via NANOG (Sep 26)
- Re: IPv6 woes - RFC Nick Hilliard (Sep 26)
- Re: IPv6 woes - RFC Denys Fedoryshchenko (Sep 22)
- Re: IPv6 woes - RFC Tim Howe (Sep 18)
- Re: IPv6 woes - RFC Tim Howe (Sep 18)
- Re: IPv6 woes - RFC Bjørn Mork (Sep 08)
- Re: IPv6 woes - RFC Saku Ytti (Sep 08)