Public bug reported:
My Ubuntu 20.04 smokeping setup was configured with binary name fping6,
and smokeping 2.7.3-2 which always uses -6.
Using fping 4.2-1 on Ubuntu 20.04 the fping6-probes from smokeping
stopped working.
Using fping 4.0-6 on Ubuntu 18.04 the fping6-probe works as expected.
After some digging, it turns out fping6 and -6 is broken, the program will exit
with
'fping6: can't specify both -4 and -6'
root@probe:~# fping6 -6 ipv6.google.com
fping6: can't specify both -4 and -6
fping is working fine, as expected
root@probe:~# fping -6 ipv6.google.com
ipv6.google.com is alive
---
root@probe:~# lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04
root@probe:~# apt-cache policy fping
fping:
Installed: 4.2-1
Candidate: 4.2-1
Version table:
*** 4.2-1 500
500 http://ch.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
100 /var/lib/dpkg/status
** Affects: fping (Ubuntu)
Importance: Undecided
Status: New
** Affects: fping (Debian)
Importance: Unknown
Status: Unknown
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https://bugs.launchpad.net/bugs/1875242
Title:
Do not fail if using fping6 with -6 flag
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