[Touch-packages] [Bug 1405232] Re: ping reports wrong IP responding under certain conditions
Was about to file a report for this. Can confirm, tested in 16.04 http://pastebin.com/JzexVR0D -- 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/1405232 Title: ping reports wrong IP responding under certain conditions Status in iputils package in Ubuntu: Confirmed Bug description: Description: Ubuntu 14.04.1 LTS Release: 14.04 iputils-ping: Installed: 3:20121221-4ubuntu1.1 Candidate: 3:20121221-4ubuntu1.1 ping will report the incorrect reply IP address under certain, specific conditions, and is repeatable. This is how to re-create the issue: 1. Start pinging an IP where you get an ICMP error message from some other device (RFC792 lists errors). For instance: Destination IP is offline and the last-hop router reports message type "Destination Unreachable". I assume this would work for any ICMP error, though. 2. When the device comes back online, ping reports replies from the "other" device, when it should report replies from the device that is sending the "Echo Reply" messages. 3. If the ping is stopped and restarted after the device is up, it reports the correct IP address again. Other ping utilities do not exhibit this behavior. Example output (Destination that was pinged was 172.21.56.50, last hop router was 172.21.25.103): circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. From 172.21.25.103 icmp_seq=1 Destination Host Unreachable From 172.21.25.103 icmp_seq=2 Destination Host Unreachable From 172.21.25.103 icmp_seq=3 Destination Host Unreachable From 172.21.25.103 icmp_seq=4 Destination Host Unreachable From 172.21.25.103 icmp_seq=5 Destination Host Unreachable From 172.21.25.103 icmp_seq=6 Destination Host Unreachable 64 bytes from 172.21.25.103: icmp_seq=7 ttl=63 time=0.689 ms 64 bytes from 172.21.25.103: icmp_seq=8 ttl=63 time=0.635 ms 64 bytes from 172.21.25.103: icmp_seq=9 ttl=63 time=0.656 ms 64 bytes from 172.21.25.103: icmp_seq=10 ttl=63 time=0.822 ms 64 bytes from 172.21.25.103: icmp_seq=11 ttl=63 time=0.785 ms ^C --- 172.21.56.50 ping statistics --- 11 packets transmitted, 5 received, +6 errors, 54% packet loss, time 10023ms rtt min/avg/max/mdev = 0.635/0.717/0.822/0.077 ms, pipe 3 circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. 64 bytes from 172.21.56.50: icmp_seq=1 ttl=63 time=0.737 ms 64 bytes from 172.21.56.50: icmp_seq=2 ttl=63 time=0.646 ms 64 bytes from 172.21.56.50: icmp_seq=3 ttl=63 time=0.626 ms ^C --- 172.21.56.50 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.626/0.669/0.737/0.056 ms ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: iputils-ping 3:20121221-4ubuntu1.1 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Dec 23 10:50:35 2014 InstallationDate: Installed on 2014-10-08 (76 days ago) InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723) 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/1405232/+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
[Touch-packages] [Bug 1405232] Re: ping reports wrong IP responding under certain conditions
Can confirm - I tested in 15.10 and this bug no longer exists in the current iputils package, but this should be backported to 14.04 IMHO -- 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/1405232 Title: ping reports wrong IP responding under certain conditions Status in iputils package in Ubuntu: Confirmed Bug description: Description: Ubuntu 14.04.1 LTS Release: 14.04 iputils-ping: Installed: 3:20121221-4ubuntu1.1 Candidate: 3:20121221-4ubuntu1.1 ping will report the incorrect reply IP address under certain, specific conditions, and is repeatable. This is how to re-create the issue: 1. Start pinging an IP where you get an ICMP error message from some other device (RFC792 lists errors). For instance: Destination IP is offline and the last-hop router reports message type "Destination Unreachable". I assume this would work for any ICMP error, though. 2. When the device comes back online, ping reports replies from the "other" device, when it should report replies from the device that is sending the "Echo Reply" messages. 3. If the ping is stopped and restarted after the device is up, it reports the correct IP address again. Other ping utilities do not exhibit this behavior. Example output (Destination that was pinged was 172.21.56.50, last hop router was 172.21.25.103): circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. From 172.21.25.103 icmp_seq=1 Destination Host Unreachable From 172.21.25.103 icmp_seq=2 Destination Host Unreachable From 172.21.25.103 icmp_seq=3 Destination Host Unreachable From 172.21.25.103 icmp_seq=4 Destination Host Unreachable From 172.21.25.103 icmp_seq=5 Destination Host Unreachable From 172.21.25.103 icmp_seq=6 Destination Host Unreachable 64 bytes from 172.21.25.103: icmp_seq=7 ttl=63 time=0.689 ms 64 bytes from 172.21.25.103: icmp_seq=8 ttl=63 time=0.635 ms 64 bytes from 172.21.25.103: icmp_seq=9 ttl=63 time=0.656 ms 64 bytes from 172.21.25.103: icmp_seq=10 ttl=63 time=0.822 ms 64 bytes from 172.21.25.103: icmp_seq=11 ttl=63 time=0.785 ms ^C --- 172.21.56.50 ping statistics --- 11 packets transmitted, 5 received, +6 errors, 54% packet loss, time 10023ms rtt min/avg/max/mdev = 0.635/0.717/0.822/0.077 ms, pipe 3 circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. 64 bytes from 172.21.56.50: icmp_seq=1 ttl=63 time=0.737 ms 64 bytes from 172.21.56.50: icmp_seq=2 ttl=63 time=0.646 ms 64 bytes from 172.21.56.50: icmp_seq=3 ttl=63 time=0.626 ms ^C --- 172.21.56.50 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.626/0.669/0.737/0.056 ms ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: iputils-ping 3:20121221-4ubuntu1.1 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Dec 23 10:50:35 2014 InstallationDate: Installed on 2014-10-08 (76 days ago) InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723) 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/1405232/+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
[Touch-packages] [Bug 1405232] Re: ping reports wrong IP responding under certain conditions
14.04 contains an old version of the bug109709-less-dns.patch patch. Current versions implement DNS caching without this buggy behavior, so the best solution would be to refresh the patch. See the commit history for that file: http://anonscm.debian.org/cgit/collab-maint/iputils.git/log/debian/patches/bug109709-less-dns.patch and the current version of the patch: http://anonscm.debian.org/cgit/collab-maint/iputils.git/tree/debian/patches/bug109709-less-dns.patch -- 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/1405232 Title: ping reports wrong IP responding under certain conditions Status in iputils package in Ubuntu: Confirmed Bug description: Description: Ubuntu 14.04.1 LTS Release: 14.04 iputils-ping: Installed: 3:20121221-4ubuntu1.1 Candidate: 3:20121221-4ubuntu1.1 ping will report the incorrect reply IP address under certain, specific conditions, and is repeatable. This is how to re-create the issue: 1. Start pinging an IP where you get an ICMP error message from some other device (RFC792 lists errors). For instance: Destination IP is offline and the last-hop router reports message type "Destination Unreachable". I assume this would work for any ICMP error, though. 2. When the device comes back online, ping reports replies from the "other" device, when it should report replies from the device that is sending the "Echo Reply" messages. 3. If the ping is stopped and restarted after the device is up, it reports the correct IP address again. Other ping utilities do not exhibit this behavior. Example output (Destination that was pinged was 172.21.56.50, last hop router was 172.21.25.103): circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. From 172.21.25.103 icmp_seq=1 Destination Host Unreachable From 172.21.25.103 icmp_seq=2 Destination Host Unreachable From 172.21.25.103 icmp_seq=3 Destination Host Unreachable From 172.21.25.103 icmp_seq=4 Destination Host Unreachable From 172.21.25.103 icmp_seq=5 Destination Host Unreachable From 172.21.25.103 icmp_seq=6 Destination Host Unreachable 64 bytes from 172.21.25.103: icmp_seq=7 ttl=63 time=0.689 ms 64 bytes from 172.21.25.103: icmp_seq=8 ttl=63 time=0.635 ms 64 bytes from 172.21.25.103: icmp_seq=9 ttl=63 time=0.656 ms 64 bytes from 172.21.25.103: icmp_seq=10 ttl=63 time=0.822 ms 64 bytes from 172.21.25.103: icmp_seq=11 ttl=63 time=0.785 ms ^C --- 172.21.56.50 ping statistics --- 11 packets transmitted, 5 received, +6 errors, 54% packet loss, time 10023ms rtt min/avg/max/mdev = 0.635/0.717/0.822/0.077 ms, pipe 3 circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. 64 bytes from 172.21.56.50: icmp_seq=1 ttl=63 time=0.737 ms 64 bytes from 172.21.56.50: icmp_seq=2 ttl=63 time=0.646 ms 64 bytes from 172.21.56.50: icmp_seq=3 ttl=63 time=0.626 ms ^C --- 172.21.56.50 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.626/0.669/0.737/0.056 ms ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: iputils-ping 3:20121221-4ubuntu1.1 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Dec 23 10:50:35 2014 InstallationDate: Installed on 2014-10-08 (76 days ago) InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723) 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/1405232/+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
[Touch-packages] [Bug 1405232] Re: ping reports wrong IP responding under certain conditions
Couldn't the upstream fix be to time out the DNS resolution? If you don't have an answer in X seconds/milliseconds, never mind and carry on. It's just ping, after all, and it's a good idea to make low level diagnosis independent of higher level functionality, as noted in the Debian bug report. Caching hostnames in ping is a possible strategy, but that's what the local resolver is for. IMHO, that's not something ping should bother doing. -- 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/1405232 Title: ping reports wrong IP responding under certain conditions Status in iputils package in Ubuntu: Confirmed Bug description: Description: Ubuntu 14.04.1 LTS Release: 14.04 iputils-ping: Installed: 3:20121221-4ubuntu1.1 Candidate: 3:20121221-4ubuntu1.1 ping will report the incorrect reply IP address under certain, specific conditions, and is repeatable. This is how to re-create the issue: 1. Start pinging an IP where you get an ICMP error message from some other device (RFC792 lists errors). For instance: Destination IP is offline and the last-hop router reports message type "Destination Unreachable". I assume this would work for any ICMP error, though. 2. When the device comes back online, ping reports replies from the "other" device, when it should report replies from the device that is sending the "Echo Reply" messages. 3. If the ping is stopped and restarted after the device is up, it reports the correct IP address again. Other ping utilities do not exhibit this behavior. Example output (Destination that was pinged was 172.21.56.50, last hop router was 172.21.25.103): circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. From 172.21.25.103 icmp_seq=1 Destination Host Unreachable From 172.21.25.103 icmp_seq=2 Destination Host Unreachable From 172.21.25.103 icmp_seq=3 Destination Host Unreachable From 172.21.25.103 icmp_seq=4 Destination Host Unreachable From 172.21.25.103 icmp_seq=5 Destination Host Unreachable From 172.21.25.103 icmp_seq=6 Destination Host Unreachable 64 bytes from 172.21.25.103: icmp_seq=7 ttl=63 time=0.689 ms 64 bytes from 172.21.25.103: icmp_seq=8 ttl=63 time=0.635 ms 64 bytes from 172.21.25.103: icmp_seq=9 ttl=63 time=0.656 ms 64 bytes from 172.21.25.103: icmp_seq=10 ttl=63 time=0.822 ms 64 bytes from 172.21.25.103: icmp_seq=11 ttl=63 time=0.785 ms ^C --- 172.21.56.50 ping statistics --- 11 packets transmitted, 5 received, +6 errors, 54% packet loss, time 10023ms rtt min/avg/max/mdev = 0.635/0.717/0.822/0.077 ms, pipe 3 circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. 64 bytes from 172.21.56.50: icmp_seq=1 ttl=63 time=0.737 ms 64 bytes from 172.21.56.50: icmp_seq=2 ttl=63 time=0.646 ms 64 bytes from 172.21.56.50: icmp_seq=3 ttl=63 time=0.626 ms ^C --- 172.21.56.50 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.626/0.669/0.737/0.056 ms ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: iputils-ping 3:20121221-4ubuntu1.1 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Dec 23 10:50:35 2014 InstallationDate: Installed on 2014-10-08 (76 days ago) InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723) 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/1405232/+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
[Touch-packages] [Bug 1405232] Re: ping reports wrong IP responding under certain conditions
To follow up on myself (I seem to do that a lot) see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=109709. The problem that this patch tries to fix is sort of real (but see below), but the patch is plain wrong. Yes it fixes that issue, but introduces this new bug. Which one is more serious? I think this bug is more serious and the patch should be (maybe partially) reverted. The original bug can be avoided (I think) by simply using the -n switch, so it's even a solution to a non-problem. This bug has no workaround. ** Bug watch added: Debian Bug tracker #109709 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=109709 -- 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/1405232 Title: ping reports wrong IP responding under certain conditions Status in iputils package in Ubuntu: Confirmed Bug description: Description: Ubuntu 14.04.1 LTS Release: 14.04 iputils-ping: Installed: 3:20121221-4ubuntu1.1 Candidate: 3:20121221-4ubuntu1.1 ping will report the incorrect reply IP address under certain, specific conditions, and is repeatable. This is how to re-create the issue: 1. Start pinging an IP where you get an ICMP error message from some other device (RFC792 lists errors). For instance: Destination IP is offline and the last-hop router reports message type "Destination Unreachable". I assume this would work for any ICMP error, though. 2. When the device comes back online, ping reports replies from the "other" device, when it should report replies from the device that is sending the "Echo Reply" messages. 3. If the ping is stopped and restarted after the device is up, it reports the correct IP address again. Other ping utilities do not exhibit this behavior. Example output (Destination that was pinged was 172.21.56.50, last hop router was 172.21.25.103): circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. From 172.21.25.103 icmp_seq=1 Destination Host Unreachable From 172.21.25.103 icmp_seq=2 Destination Host Unreachable From 172.21.25.103 icmp_seq=3 Destination Host Unreachable From 172.21.25.103 icmp_seq=4 Destination Host Unreachable From 172.21.25.103 icmp_seq=5 Destination Host Unreachable From 172.21.25.103 icmp_seq=6 Destination Host Unreachable 64 bytes from 172.21.25.103: icmp_seq=7 ttl=63 time=0.689 ms 64 bytes from 172.21.25.103: icmp_seq=8 ttl=63 time=0.635 ms 64 bytes from 172.21.25.103: icmp_seq=9 ttl=63 time=0.656 ms 64 bytes from 172.21.25.103: icmp_seq=10 ttl=63 time=0.822 ms 64 bytes from 172.21.25.103: icmp_seq=11 ttl=63 time=0.785 ms ^C --- 172.21.56.50 ping statistics --- 11 packets transmitted, 5 received, +6 errors, 54% packet loss, time 10023ms rtt min/avg/max/mdev = 0.635/0.717/0.822/0.077 ms, pipe 3 circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. 64 bytes from 172.21.56.50: icmp_seq=1 ttl=63 time=0.737 ms 64 bytes from 172.21.56.50: icmp_seq=2 ttl=63 time=0.646 ms 64 bytes from 172.21.56.50: icmp_seq=3 ttl=63 time=0.626 ms ^C --- 172.21.56.50 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.626/0.669/0.737/0.056 ms ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: iputils-ping 3:20121221-4ubuntu1.1 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Dec 23 10:50:35 2014 InstallationDate: Installed on 2014-10-08 (76 days ago) InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723) 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/1405232/+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
[Touch-packages] [Bug 1405232] Re: ping reports wrong IP responding under certain conditions
No, don't kick upstream. It's bug109709-less-dns.patch. Revert it, it's bogus -- 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/1405232 Title: ping reports wrong IP responding under certain conditions Status in iputils package in Ubuntu: Confirmed Bug description: Description: Ubuntu 14.04.1 LTS Release: 14.04 iputils-ping: Installed: 3:20121221-4ubuntu1.1 Candidate: 3:20121221-4ubuntu1.1 ping will report the incorrect reply IP address under certain, specific conditions, and is repeatable. This is how to re-create the issue: 1. Start pinging an IP where you get an ICMP error message from some other device (RFC792 lists errors). For instance: Destination IP is offline and the last-hop router reports message type "Destination Unreachable". I assume this would work for any ICMP error, though. 2. When the device comes back online, ping reports replies from the "other" device, when it should report replies from the device that is sending the "Echo Reply" messages. 3. If the ping is stopped and restarted after the device is up, it reports the correct IP address again. Other ping utilities do not exhibit this behavior. Example output (Destination that was pinged was 172.21.56.50, last hop router was 172.21.25.103): circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. From 172.21.25.103 icmp_seq=1 Destination Host Unreachable From 172.21.25.103 icmp_seq=2 Destination Host Unreachable From 172.21.25.103 icmp_seq=3 Destination Host Unreachable From 172.21.25.103 icmp_seq=4 Destination Host Unreachable From 172.21.25.103 icmp_seq=5 Destination Host Unreachable From 172.21.25.103 icmp_seq=6 Destination Host Unreachable 64 bytes from 172.21.25.103: icmp_seq=7 ttl=63 time=0.689 ms 64 bytes from 172.21.25.103: icmp_seq=8 ttl=63 time=0.635 ms 64 bytes from 172.21.25.103: icmp_seq=9 ttl=63 time=0.656 ms 64 bytes from 172.21.25.103: icmp_seq=10 ttl=63 time=0.822 ms 64 bytes from 172.21.25.103: icmp_seq=11 ttl=63 time=0.785 ms ^C --- 172.21.56.50 ping statistics --- 11 packets transmitted, 5 received, +6 errors, 54% packet loss, time 10023ms rtt min/avg/max/mdev = 0.635/0.717/0.822/0.077 ms, pipe 3 circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. 64 bytes from 172.21.56.50: icmp_seq=1 ttl=63 time=0.737 ms 64 bytes from 172.21.56.50: icmp_seq=2 ttl=63 time=0.646 ms 64 bytes from 172.21.56.50: icmp_seq=3 ttl=63 time=0.626 ms ^C --- 172.21.56.50 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.626/0.669/0.737/0.056 ms ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: iputils-ping 3:20121221-4ubuntu1.1 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Dec 23 10:50:35 2014 InstallationDate: Installed on 2014-10-08 (76 days ago) InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723) 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/1405232/+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
[Touch-packages] [Bug 1405232] Re: ping reports wrong IP responding under certain conditions
I Noted the nexthop field is wrong as well in my last output.
What happens is a wrong optimisation. the pr_addr function assumes it is
always called with the same address, so it just returns the previous
buffer on subsequent invocations.
The following quickfix fixes both the issue in this ticket as the
nexthop issue.
$ diff -U3 ping.c{~,}
--- ping.c~ 2015-02-12 13:00:18.0 +0100
+++ ping.c 2015-02-12 13:45:47.515167752 +0100
@@ -1244,10 +1244,10 @@
{
struct hostent *hp;
static char buf[4096] = "";
-
+ /*
if (*buf)
return(buf);
-
+ */
in_pr_addr = !setjmp(pr_addr_jmp);
if (exiting || (options & F_NUMERIC) ||
I think this can be kicked upstream.
--
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https://bugs.launchpad.net/bugs/1405232
Title:
ping reports wrong IP responding under certain conditions
Status in iputils package in Ubuntu:
Confirmed
Bug description:
Description: Ubuntu 14.04.1 LTS
Release: 14.04
iputils-ping:
Installed: 3:20121221-4ubuntu1.1
Candidate: 3:20121221-4ubuntu1.1
ping will report the incorrect reply IP address under certain,
specific conditions, and is repeatable. This is how to re-create the
issue:
1. Start pinging an IP where you get an ICMP error message from some
other device (RFC792 lists errors). For instance: Destination IP is
offline and the last-hop router reports message type "Destination
Unreachable". I assume this would work for any ICMP error, though.
2. When the device comes back online, ping reports replies from the
"other" device, when it should report replies from the device that is
sending the "Echo Reply" messages.
3. If the ping is stopped and restarted after the device is up, it
reports the correct IP address again. Other ping utilities do not
exhibit this behavior.
Example output (Destination that was pinged was 172.21.56.50, last hop router
was 172.21.25.103):
circle@circle:~$ /bin/ping 172.21.56.50
PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data.
From 172.21.25.103 icmp_seq=1 Destination Host Unreachable
From 172.21.25.103 icmp_seq=2 Destination Host Unreachable
From 172.21.25.103 icmp_seq=3 Destination Host Unreachable
From 172.21.25.103 icmp_seq=4 Destination Host Unreachable
From 172.21.25.103 icmp_seq=5 Destination Host Unreachable
From 172.21.25.103 icmp_seq=6 Destination Host Unreachable
64 bytes from 172.21.25.103: icmp_seq=7 ttl=63 time=0.689 ms
64 bytes from 172.21.25.103: icmp_seq=8 ttl=63 time=0.635 ms
64 bytes from 172.21.25.103: icmp_seq=9 ttl=63 time=0.656 ms
64 bytes from 172.21.25.103: icmp_seq=10 ttl=63 time=0.822 ms
64 bytes from 172.21.25.103: icmp_seq=11 ttl=63 time=0.785 ms
^C
--- 172.21.56.50 ping statistics ---
11 packets transmitted, 5 received, +6 errors, 54% packet loss, time 10023ms
rtt min/avg/max/mdev = 0.635/0.717/0.822/0.077 ms, pipe 3
circle@circle:~$ /bin/ping 172.21.56.50
PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data.
64 bytes from 172.21.56.50: icmp_seq=1 ttl=63 time=0.737 ms
64 bytes from 172.21.56.50: icmp_seq=2 ttl=63 time=0.646 ms
64 bytes from 172.21.56.50: icmp_seq=3 ttl=63 time=0.626 ms
^C
--- 172.21.56.50 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1998ms
rtt min/avg/max/mdev = 0.626/0.669/0.737/0.056 ms
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: iputils-ping 3:20121221-4ubuntu1.1
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CurrentDesktop: XFCE
Date: Tue Dec 23 10:50:35 2014
InstallationDate: Installed on 2014-10-08 (76 days ago)
InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64
(20140723)
SourcePackage: iputils
UpgradeStatus: No upgrade log present (probably fresh install)
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[Touch-packages] [Bug 1405232] Re: ping reports wrong IP responding under certain conditions
The problem even exists on an ICMP redirect. martijn@garfield:~$ ping 172.22.226.3 PING 172.22.226.3 (172.22.226.3) 56(84) bytes of data. >From 10.0.0.138: icmp_seq=1 Redirect Host(New nexthop: 10.0.0.138) 64 bytes from 10.0.0.138: icmp_seq=1 ttl=245 time=66.4 ms 64 bytes from 10.0.0.138: icmp_seq=2 ttl=245 time=127 ms 64 bytes from 10.0.0.138: icmp_seq=3 ttl=245 time=280 ms -- 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/1405232 Title: ping reports wrong IP responding under certain conditions Status in iputils package in Ubuntu: Confirmed Bug description: Description: Ubuntu 14.04.1 LTS Release: 14.04 iputils-ping: Installed: 3:20121221-4ubuntu1.1 Candidate: 3:20121221-4ubuntu1.1 ping will report the incorrect reply IP address under certain, specific conditions, and is repeatable. This is how to re-create the issue: 1. Start pinging an IP where you get an ICMP error message from some other device (RFC792 lists errors). For instance: Destination IP is offline and the last-hop router reports message type "Destination Unreachable". I assume this would work for any ICMP error, though. 2. When the device comes back online, ping reports replies from the "other" device, when it should report replies from the device that is sending the "Echo Reply" messages. 3. If the ping is stopped and restarted after the device is up, it reports the correct IP address again. Other ping utilities do not exhibit this behavior. Example output (Destination that was pinged was 172.21.56.50, last hop router was 172.21.25.103): circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. From 172.21.25.103 icmp_seq=1 Destination Host Unreachable From 172.21.25.103 icmp_seq=2 Destination Host Unreachable From 172.21.25.103 icmp_seq=3 Destination Host Unreachable From 172.21.25.103 icmp_seq=4 Destination Host Unreachable From 172.21.25.103 icmp_seq=5 Destination Host Unreachable From 172.21.25.103 icmp_seq=6 Destination Host Unreachable 64 bytes from 172.21.25.103: icmp_seq=7 ttl=63 time=0.689 ms 64 bytes from 172.21.25.103: icmp_seq=8 ttl=63 time=0.635 ms 64 bytes from 172.21.25.103: icmp_seq=9 ttl=63 time=0.656 ms 64 bytes from 172.21.25.103: icmp_seq=10 ttl=63 time=0.822 ms 64 bytes from 172.21.25.103: icmp_seq=11 ttl=63 time=0.785 ms ^C --- 172.21.56.50 ping statistics --- 11 packets transmitted, 5 received, +6 errors, 54% packet loss, time 10023ms rtt min/avg/max/mdev = 0.635/0.717/0.822/0.077 ms, pipe 3 circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. 64 bytes from 172.21.56.50: icmp_seq=1 ttl=63 time=0.737 ms 64 bytes from 172.21.56.50: icmp_seq=2 ttl=63 time=0.646 ms 64 bytes from 172.21.56.50: icmp_seq=3 ttl=63 time=0.626 ms ^C --- 172.21.56.50 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.626/0.669/0.737/0.056 ms ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: iputils-ping 3:20121221-4ubuntu1.1 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Dec 23 10:50:35 2014 InstallationDate: Installed on 2014-10-08 (76 days ago) InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723) 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/1405232/+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
[Touch-packages] [Bug 1405232] Re: ping reports wrong IP responding under certain conditions
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: iputils (Ubuntu) Status: New => Confirmed -- 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/1405232 Title: ping reports wrong IP responding under certain conditions Status in iputils package in Ubuntu: Confirmed Bug description: Description: Ubuntu 14.04.1 LTS Release: 14.04 iputils-ping: Installed: 3:20121221-4ubuntu1.1 Candidate: 3:20121221-4ubuntu1.1 ping will report the incorrect reply IP address under certain, specific conditions, and is repeatable. This is how to re-create the issue: 1. Start pinging an IP where you get an ICMP error message from some other device (RFC792 lists errors). For instance: Destination IP is offline and the last-hop router reports message type "Destination Unreachable". I assume this would work for any ICMP error, though. 2. When the device comes back online, ping reports replies from the "other" device, when it should report replies from the device that is sending the "Echo Reply" messages. 3. If the ping is stopped and restarted after the device is up, it reports the correct IP address again. Other ping utilities do not exhibit this behavior. Example output (Destination that was pinged was 172.21.56.50, last hop router was 172.21.25.103): circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. From 172.21.25.103 icmp_seq=1 Destination Host Unreachable From 172.21.25.103 icmp_seq=2 Destination Host Unreachable From 172.21.25.103 icmp_seq=3 Destination Host Unreachable From 172.21.25.103 icmp_seq=4 Destination Host Unreachable From 172.21.25.103 icmp_seq=5 Destination Host Unreachable From 172.21.25.103 icmp_seq=6 Destination Host Unreachable 64 bytes from 172.21.25.103: icmp_seq=7 ttl=63 time=0.689 ms 64 bytes from 172.21.25.103: icmp_seq=8 ttl=63 time=0.635 ms 64 bytes from 172.21.25.103: icmp_seq=9 ttl=63 time=0.656 ms 64 bytes from 172.21.25.103: icmp_seq=10 ttl=63 time=0.822 ms 64 bytes from 172.21.25.103: icmp_seq=11 ttl=63 time=0.785 ms ^C --- 172.21.56.50 ping statistics --- 11 packets transmitted, 5 received, +6 errors, 54% packet loss, time 10023ms rtt min/avg/max/mdev = 0.635/0.717/0.822/0.077 ms, pipe 3 circle@circle:~$ /bin/ping 172.21.56.50 PING 172.21.56.50 (172.21.56.50) 56(84) bytes of data. 64 bytes from 172.21.56.50: icmp_seq=1 ttl=63 time=0.737 ms 64 bytes from 172.21.56.50: icmp_seq=2 ttl=63 time=0.646 ms 64 bytes from 172.21.56.50: icmp_seq=3 ttl=63 time=0.626 ms ^C --- 172.21.56.50 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.626/0.669/0.737/0.056 ms ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: iputils-ping 3:20121221-4ubuntu1.1 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Dec 23 10:50:35 2014 InstallationDate: Installed on 2014-10-08 (76 days ago) InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723) 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/1405232/+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
