I see I've made a typo regarding icmp_seq in the output of the second run of ping (icmp_seq 1, then 2, and then 1 again, but the last one should be 3). I typed this manually, so there may be other typos as well. But I can't see any typos regarding the main point, I got the ping replies from my own IP address, with times on the order of 0.400ms.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to iputils in Ubuntu. https://bugs.launchpad.net/bugs/1471230 Title: ping got confused about IP-adress after host unreachable Status in iputils package in Ubuntu: New Bug description: I tried pinging an IP address on an internal network. My IP is 10.0.0.95, and I'm trying to ping 10.0.0.96. Here's what it looked like: $ ping 10.0.0.96 PING 10.0.0.96 (10.0.0.96) 56(84) bytes of data. From 10.0.0.95 icmp_seq=1 Destination Host Unreachable From 10.0.0.95 icmp_seq=2 Destination Host Unreachable From 10.0.0.95 icmp_seq=3 Destination Host Unreachable From 10.0.0.95 icmp_seq=4 Destination Host Unreachable From 10.0.0.95 icmp_seq=5 Destination Host Unreachable From 10.0.0.95 icmp_seq=6 Destination Host Unreachable From 10.0.0.95 icmp_seq=7 Destination Host Unreachable From 10.0.0.95 icmp_seq=8 Destination Host Unreachable From 10.0.0.95 icmp_seq=9 Destination Host Unreachable From 10.0.0.95 icmp_seq=10 Destination Host Unreachable From 10.0.0.95 icmp_seq=11 Destination Host Unreachable From 10.0.0.95 icmp_seq=12 Destination Host Unreachable 64 bytes from 10.0.0.95: icmp_seq=13 ttl=64 time=5.01ms 64 bytes from 10.0.0.95: icmp_seq=14 ttl=64 time=0.658ms 64 bytes from 10.0.0.95: icmp_seq=15 ttl=64 time=0.459ms 64 bytes from 10.0.0.95: icmp_seq=16 ttl=64 time=0.432ms 64 bytes from 10.0.0.95: icmp_seq=17 ttl=64 time=0.437ms 64 bytes from 10.0.0.95: icmp_seq=18 ttl=64 time=0.348ms 64 bytes from 10.0.0.95: icmp_seq=19 ttl=64 time=0.485ms 64 bytes from 10.0.0.95: icmp_seq=20 ttl=64 time=0.529ms 64 bytes from 10.0.0.95: icmp_seq=21 ttl=64 time=0.459ms [snip] ^C --- 10.0.0.96 ping statistics --- 47 packets transmitted, 35 received, +12 errors, 25% packet loss, time 46069ms rtt min/avg/max/mdev = 0.348/2.693/70.753/11.712 ms, pipe 3 $ ping 10.0.0.96 PING 10.0.0.96 (10.0.0.96) 56(84) bytes of data. 64 bytes from 10.0.0.96: icmp_seq=1 ttl=64 time=0.324ms 64 bytes from 10.0.0.96: icmp_seq=2 ttl=64 time=0.405ms 64 bytes from 10.0.0.96: icmp_seq=1 ttl=64 time=0.357ms etc... So on the initial run, ping claims it got a ping reply from 10.0.0.95, which isn't the address I'm pinging. It's my host, and it's normal to get the initial ICMP "Destination Host Unreachable" messages from the local IP when ARP fails. I almost immediately reran ping, and now the host was up from the start, and see responses coming from the actual host that I'm pinging. Looking at the times, the ping replies appear to actually come from 10.0.0.96, or at least some other remote host, based on the time values. If I ping 10.0.0.95 (my own IP), I'm seeing time values of 0.040ms or thereabouts, so an order of magnitude faster. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: iputils-ping 3:20121221-4ubuntu1.1 Uname: Linux 3.17.1-031701-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.11 Architecture: amd64 CurrentDesktop: Unity Date: Fri Jul 3 15:16:40 2015 InstallationDate: Installed on 2014-10-09 (266 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) SourcePackage: iputils UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/iputils/+bug/1471230/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
