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router-advert: erroneous syslog warning about invalid all-zeros prefix
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Description

radvd reports an error about an invalid all-zeros prefix in syslog, but continues to start up and work fine for that prefix, so there is no problem with it, just a erroneous log.
This is reported in debian since 2018, still open: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891324
and fixed upstream in radvd 2.18 https://github.com/reubenhwk/radvd/commit/b37baa1137d0bd5b9cceb2e447550f1c0a105ac6

router-advert {
    interface eth2 {
        prefix ::/64 {
        }
    }
}
Jun 25 12:35:00 vyos systemd[1]: Starting Router advertisement daemon for IPv6...
Jun 25 12:35:00 vyos radvd[3066]: invalid all-zeros prefix in /run/radvd/radvd.conf, line 14
Jun 25 12:35:00 vyos radvd[3066]: config file, /run/radvd/radvd.conf, syntax ok
Jun 25 12:35:00 vyos radvd[3067]: version 2.17 started
Jun 25 12:35:00 vyos radvd[3067]: invalid all-zeros prefix in /run/radvd/radvd.conf, line 14
Jun 25 12:35:00 vyos systemd[1]: Started Router advertisement daemon for IPv6.

Details

Difficulty level
Unknown (require assessment)
Version
1.3-rolling-202006241940
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Perfectly compatible

Event Timeline

jjakob created this task.
jjakob created this object in space S1 VyOS Public.