Public bug reported:
NOTE: this bug report is for the package iputils-ping, but the website did not
let me enter that:
$ dpkg-query -S /bin/ping
iputils-ping: /bin/ping
$ dpkg-query -l iputils-ping
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-===============================================
ii iputils-ping 3:20211215-1 amd64 Tools to test the reachability of
network hosts
$
This is on 22.04 (Jammy Jellyfish), but the bug is also present in 20.04
(Focal Fossa)
The deadline option is documented to exit on receiving an ICMP error:
-w deadline
Specify a timeout, in seconds, before ping exits regardless of how
many packets have been sent or received. In this case ping does not stop after
count packet are sent, it waits
either for deadline expire or until count probes are answered or for
some error notification from network.
However, it exits too when a redirect is received, which is not an
error. This make it useless for liveness probes when a redirect occurs.
$ ping -w 2 strange.soleus.nu
PING strange.soleus.nu (94.142.246.148) 56(84) bytes of data.
>From hv02.rtij.nl (10.0.2.4) icmp_seq=1 Redirect Host(New nexthop: lte.rtij.nl
>(10.0.0.137))
--- strange.soleus.nu ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms
$
Note that the -c <n> option suffers from the same problem.
This does not happen in 18.04 (Bionic Beaver), which shows the expected
behaviour:
martijn@popeye:~$ ping -w 2 strange.soleus.nu
PING strange.soleus.nu (94.142.246.148) 56(84) bytes of data.
>From hv02.rtij.nl (10.0.2.4): icmp_seq=1 Redirect Host(New nexthop:
>lte.rtij.nl (10.0.0.137))
64 bytes from strange.soleus.nu (94.142.246.148): icmp_seq=1 ttl=53 time=47.9 ms
--- strange.soleus.nu ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 47.908/47.908/47.908/0.000 ms
martijn@popeye:~$ grep VERSION /etc/os-release
VERSION="18.04.6 LTS (Bionic Beaver)"
VERSION_ID="18.04"
VERSION_CODENAME=bionic
martijn@popeye:~$ dpkg-query -S /bin/ping
iputils-ping: /bin/ping
martijn@popeye:~$
** Affects: iputils (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1972897
Title:
redirect seen as error
Status in iputils package in Ubuntu:
New
Bug description:
NOTE: this bug report is for the package iputils-ping, but the website did
not let me enter that:
$ dpkg-query -S /bin/ping
iputils-ping: /bin/ping
$ dpkg-query -l iputils-ping
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-===============================================
ii iputils-ping 3:20211215-1 amd64 Tools to test the reachability
of network hosts
$
This is on 22.04 (Jammy Jellyfish), but the bug is also present in
20.04 (Focal Fossa)
The deadline option is documented to exit on receiving an ICMP error:
-w deadline
Specify a timeout, in seconds, before ping exits regardless of how
many packets have been sent or received. In this case ping does not stop after
count packet are sent, it waits
either for deadline expire or until count probes are answered or
for some error notification from network.
However, it exits too when a redirect is received, which is not an
error. This make it useless for liveness probes when a redirect
occurs.
$ ping -w 2 strange.soleus.nu
PING strange.soleus.nu (94.142.246.148) 56(84) bytes of data.
From hv02.rtij.nl (10.0.2.4) icmp_seq=1 Redirect Host(New nexthop:
lte.rtij.nl (10.0.0.137))
--- strange.soleus.nu ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms
$
Note that the -c <n> option suffers from the same problem.
This does not happen in 18.04 (Bionic Beaver), which shows the
expected behaviour:
martijn@popeye:~$ ping -w 2 strange.soleus.nu
PING strange.soleus.nu (94.142.246.148) 56(84) bytes of data.
From hv02.rtij.nl (10.0.2.4): icmp_seq=1 Redirect Host(New nexthop:
lte.rtij.nl (10.0.0.137))
64 bytes from strange.soleus.nu (94.142.246.148): icmp_seq=1 ttl=53 time=47.9
ms
--- strange.soleus.nu ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 47.908/47.908/47.908/0.000 ms
martijn@popeye:~$ grep VERSION /etc/os-release
VERSION="18.04.6 LTS (Bionic Beaver)"
VERSION_ID="18.04"
VERSION_CODENAME=bionic
martijn@popeye:~$ dpkg-query -S /bin/ping
iputils-ping: /bin/ping
martijn@popeye:~$
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