Hi,
I'm testing 'squid 4.5' with the latest patches. Its running, but...:
Despite IPv6 being enabled in configure options, one of these patches (http://www.squid-cache.org/Versions/v4/changesets/squid-4-568e66b7c64e0d7873...) leads to "WARNING: BCP 177 violation. Detected non-functional IPv6 loopback." during startup.
I found an explanation regarding 'squid 3.5.7' here: (http://lists.squid-cache.org/pipermail/squid-users/2015-August/004930.html)
"IPv6: improve BCP 177 compliance
Since early 2012 it has been mandatory for new or upgraded Internet connected machinery and software to support IPv6 ad use it in preference over IPv4.
Squid IPv6 behaviour has followed these practices since well before the guidelines became a BCP. Over the years it has also grown into a well-tested and widely used feature.
The --disable-ipv6 build option is now deprecated. It is long past time to fix whatever network brokenness you may have that made it look attractive in past years.
Squid-3.5.7 and later will perform IPv6 availability tests on startup in all builds.
- Where IPv6 is unavailable Squid will continue exactly as it would have had the build option not been used.
These Squid can have the build option removed now.
- Where IPv6 is detected but --disable-ipv6 prevents use Squid will log "WARNING: BCP 177 violation".
Please test whether you can rebuild with IPv6 enabled."
IPv6 is enabled, but I get these warning. Anything we could/should do? Opinions?
Best, Matthias