hello, is the following output of ping reasonable enough?
io% 6.ping -an3 hebe sending 3 64 byte messages 1000 ms apart to icmp!192.168.0.6!1 192.168.0.5 -> 192.168.0.6 0: 192.168.0.6 -> 192.168.0.5 rtt 88 µs, avg rtt 88 µs, ttl = 255 1: 192.168.0.6 -> 192.168.0.5 rtt 83 µs, avg rtt 85 µs, ttl = 255 2: 192.168.0.6 -> 192.168.0.5 rtt 80 µs, avg rtt 83 µs, ttl = 255 io% 6.ping -an3 192.168.0.6 sending 3 64 byte messages 1000 ms apart to icmp!192.168.0.6!1 192.168.0.5 -> 192.168.0.6 0: 192.168.0.6 -> 192.168.0.5 rtt 107 µs, avg rtt 107 µs, ttl = 255 1: 192.168.0.6 -> 192.168.0.5 rtt 84 µs, avg rtt 95 µs, ttl = 255 2: 192.168.0.6 -> 192.168.0.5 rtt 95 µs, avg rtt 95 µs, ttl = 255 io% 6.ping -an3 2402:6b00:22cd:bf80::6 sending 3 64 byte messages 1000 ms apart to icmpv6!2402:6b00:22cd:bf80::6!1 2402:6b00:22cd:bf80::5 -> 2402:6b00:22cd:bf80::6 0: 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 rtt 103 µs, avg rtt 103 µs, ttl = 255 1: 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 rtt 96 µs, avg rtt 99 µs, ttl = 255 2: 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 rtt 83 µs, avg rtt 94 µs, ttl = 255 io% 6.ping -6an3 hebe sending 3 64 byte messages 1000 ms apart to icmpv6!2402:6b00:22cd:bf80::6!1 2402:6b00:22cd:bf80::5 -> 2402:6b00:22cd:bf80::6 0: 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 rtt 101 µs, avg rtt 101 µs, ttl = 255 1: 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 rtt 82 µs, avg rtt 91 µs, ttl = 255 2: 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 rtt 89 µs, avg rtt 90 µs, ttl = 255 io% 6.ping -6an3 192.168.0.6 sending 3 64 byte messages 1000 ms apart to icmp!192.168.0.6!1 192.168.0.5 -> 192.168.0.6 0: 192.168.0.6 -> 192.168.0.5 rtt 90 µs, avg rtt 90 µs, ttl = 255 1: 192.168.0.6 -> 192.168.0.5 rtt 94 µs, avg rtt 92 µs, ttl = 255 2: 192.168.0.6 -> 192.168.0.5 rtt 90 µs, avg rtt 91 µs, ttl = 255 io% 6.ping -6an3 2402:6b00:22cd:bf80::6 sending 3 64 byte messages 1000 ms apart to icmpv6!2402:6b00:22cd:bf80::6!1 2402:6b00:22cd:bf80::5 -> 2402:6b00:22cd:bf80::6 0: 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 rtt 101 µs, avg rtt 101 µs, ttl = 255 1: 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 rtt 272 µs, avg rtt 186 µs, ttl = 255 2: 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 rtt 102 µs, avg rtt 158 µs, ttl = 255 code is simplified. io% ls -l --rw-rw-r-- M 327 arisawa arisawa 9942 Dec 30 21:27 ping.c --rw-rw-r-- M 327 arisawa arisawa 10943 Dec 28 15:59 ping.c.orig io% Kenji Arisawa > 2015/12/28 18:04、arisawa <aris...@ar.aichi-u.ac.jp> のメール: > > hello 9fans, > > I have once posted the message below to 9front mailing list. > however looking the origin of the problem, now I think better place is 9fans. > > == message posted to 9front mailing list == > > I am feeling weird that ip/ping -6 does not ping to ipv6 address with > /lib/ndb/local. > > # sys=io > # ip=192.168.0.5 > # ip=2402:6b00:22cd:bf80::5 > # > hebe% ip/ping -6a io > sending 32 64 byte messages 1000 ms apart to icmpv6!io!1 > 2402:6b00:22cd:bf80::6 -> 192.168.0.5 > 0: 192.168.0.5 -> 192.168.0.6 rtt 104 µs, avg rtt 104 µs, ttl = 255 > 1: 192.168.0.5 -> 192.168.0.6 rtt 85 µs, avg rtt 94 µs, ttl = 255 > 2: 192.168.0.5 -> 192.168.0.6 rtt 85 µs, avg rtt 91 µs, ttl = 255 > 3: 192.168.0.5 -> 192.168.0.6 rtt 85 µs, avg rtt 89 µs, ttl = 255 > > this weirdness comes from the order of ip attributes. > > # sys=io > # ip=2402:6b00:22cd:bf80::5 > # ip=192.168.0.5 > # > hebe% ip/ping -6a io > sending 32 64 byte messages 1000 ms apart to icmpv6!io!1 > 2402:6b00:22cd:bf80::6 -> 2402:6b00:22cd:bf80::5 > 0: 2402:6b00:22cd:bf80::5 -> 2402:6b00:22cd:bf80::6 rtt 102 µs, avg rtt 102 > µs, ttl = 255 > 1: 2402:6b00:22cd:bf80::5 -> 2402:6b00:22cd:bf80::6 rtt 88 µs, avg rtt 95 µs, > ttl = 255 > 2: 2402:6b00:22cd:bf80::5 -> 2402:6b00:22cd:bf80::6 rtt 84 µs, avg rtt 91 µs, > ttl = 255 > 3: 2402:6b00:22cd:bf80::5 -> 2402:6b00:22cd:bf80::6 rtt 104 µs, avg rtt 94 > µs, ttl = 255 > > is this a feature or a bug? > > Kenji Arisawa