Bind 9.5.0-Pl not finding existing IPv6 interface

[Mark Andrews]

> Not using a chroot setup.
> 
> It does not matter whether I run the service as "root" or "named", I
> still get "no IPv6 interfaces found".
> 
> # /usr/local/sbin/named -f -g
> 11-Jul-2008 10:36:05.671 starting BIND 9.5.0-P1 -f -g
> 11-Jul-2008 10:36:05.674 loading configuration from '/etc/named.conf'
> 11-Jul-2008 10:36:05.675 the working directory is not writable
> 11-Jul-2008 10:36:05.675 no IPv6 interfaces found
> 11-Jul-2008 10:36:05.676 listening on IPv4 interface lo, 127.0.0.1#53
> 
> # /usr/local/sbin/named -u named -f -g
> 11-Jul-2008 10:33:59.184 starting BIND 9.5.0-P1 -u named -f -g
> 11-Jul-2008 10:33:59.188 loading configuration from '/etc/named.conf'
> 11-Jul-2008 10:33:59.188 the working directory is not writable
> 11-Jul-2008 10:33:59.189 no IPv6 interfaces found
> 11-Jul-2008 10:33:59.189 listening on IPv4 interface lo, 127.0.0.1#53
> 
> /proc/net/if_inet6 exists and contains the correct IPv6 addresses.
> 
> # cat /proc/net/if_inet6
> 200104681da000000000000000000023 02 40 00 80     eth0
> 00000000000000000000000000000001 01 80 10 80       lo
> fe80000000000000020423fffe7955a4 02 40 20 80     eth0
> 
> 
> Basic setup:
> /var/named/data
> /var/named/slaves
> /etc/named.conf
> 
> Options from named.conf:
> options {
>         cleaning-interval 120;
>         version "";
>         directory "/var/named";
>         dump-file "/var/named/data/cache_dump.db";
>         notify no;
>         allow-query { any; };
>         pid-file "/var/named/named.pid";
>         listen-on { any; };
>         listen-on-v6 { any; };
> };
> 
> Tom

	I wonder if you are hitting this problem?
	--enable-getifaddrs=no should work around it.

	If that doesn't work run 9.4.2-P1.

case $host in
*-linux*)
        # Some recent versions of glibc support getifaddrs() which does not
        # provide AF_INET6 addresses while the function provided by the USAGI
        # project handles the AF_INET6 case correctly.  We need to avoid
        # using the former but prefer the latter unless overridden by
        # --enable-getifaddrs=glibc.
        if test $want_getifaddrs = glibc
        then
                AC_CHECK_FUNC(getifaddrs, AC_DEFINE(HAVE_GETIFADDRS))
        else
                save_LIBS="$LIBS"
                LIBS="-L/usr/local/v6/lib $LIBS"
                AC_CHECK_LIB(inet6, getifaddrs,
                        LIBS="$LIBS -linet6"
                        AC_DEFINE(HAVE_GETIFADDRS),
                        LIBS=${save_LIBS})
        fi
        ;;
*)
        AC_CHECK_FUNC(getifaddrs, AC_DEFINE(HAVE_GETIFADDRS))
        ;;
esac

> 
> On Thu, Jul 10, 2008 at 4:42 AM, Mark Andrews <Mark_Andrews at isc.org> wrote:
> >
> >> I had a functioning DNS (BIND) service that was configured for both
> >> IPv4 and IPv6.  I upgraded to BIND 9.5.0-P1.  When building from
> >> source the README stated that "If your operating system has integrated
> >> support for IPv6, it
> >> will be used automatically.".  The OS is Fedora 9 with IPv4 and IPv6
> >> interfaces up and running. Now when starting the DNS service I get the
> >> dreaded "no IPv6 interfaces found".  The DNS service is binding to the
> >> IPv4 interface.  Any
> >> ideas how to get BIND to also find the IPv6 interface?
> >
> >        Ensure that /proc/net/if_inet6 is available in the chroot file
> >        system.
> >
> >        Mark
> > --
> > Mark Andrews, ISC
> > 1 Seymour St., Dundas Valley, NSW 2117, Australia
> > PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org
> >
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org