Am 28.03.2013 14:49, schrieb Lev Serebryakov:
Hello, Freebsd-net.
This question is not very FreeBSD specific, but as my router and DNS
server are FreeBSD-based, I think a could ask it here and don't
subscribe do BIND-related list, Ok?
When DHCPv4 is not available, Win7 clients on my network pick up
proper IPv6 prefix, but cannot pick up DNS server name from router
advertisment. In such situation Win7 clients try to use ff01::
multicast addresses for DNS resolution.
I have bind server, which listens on all addresses (udp6 *:53), but
it seems, that it doesn't answer on these requests :(
Is it possible to configure BIND (system one) to process such
requests?
In my experience you need to run a DHCPv6 server along with the rtadvd
daemon to get the DNS server to your Win7 box.
In rtadvd.conf set the raflags to:
:raflags="o":\
This tells the client to look for a DHCPv6 server, and to grab the
information supplied there.
In your dhcpd.conf (ISC DHCPD) then you need an entry like this:
subnet6 2001:db8::/64 {
option dhcp6.name-servers 2001:db8::1;
}
Where the subnet has to reflect the actual subnet configured on the
interface you're sending out DHCP offers.
In rc.conf add:
dhcpd6_enable="YES"
dhcpd6_ifaces="em0" or whatever interface DHCP should listen on.
And now your Win7 should be happy.
Win7 using ff01: for DNS lookups seems a bit strange to me, as I thought
that Win7 is using LLMNR
(http://en.wikipedia.org/wiki/Link-local_Multicast_Name_Resolution), the
counterpart to MDNS (http://en.wikipedia.org/wiki/Multicast_DNS) to look
up names on the local Lan and to discover services
(http://en.wikipedia.org/wiki/Zero_configuration_networking). Both use
addresses from the ff02: range.
I've looked into getting MDNS to update BIND like DHCP would do for
DDNS, but had no luck to get that going.
I don't think LLMNR could interoperate with BIND at all.
Hope that helps.
Cheers,
Mat
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