On Wed, Jun 08, 2011 at 12:12:40PM +0100, Simon Kelley wrote: > SamLT wrote: > > > > Hello, > > > > background: I started to play with IPv6. I'm used to dnsmasq providing > > me a nice local hostnames resolution (hostnames sent via the DHCP > > transaction). well, I'd like something similar with IPv6. > > I'me currently ready about mDNS, DNS-SD &Cie, but my first idea was to > > use a hook script for each DHCP transactions which will add or delete AAAA > > records to dnsmasq depending on the MAC address. > > > > > > When I look on the DBUS&dnsmasq page[1], I see that there is no > > --address support and I was wondering whether or not this could be > > usefull to have this? > > > > > > I mean, not for my initial idea, I know it's a bad idea for several > > reasons: > > -> there is the privacy extension which means the IPv6 address won't > > be using the mac address > > -> AAAA record for PC not having IPv6 connectivity might cause some > > problems > > -> IPv6 only hosts will still be missing their AAAA records... > > > > > > Anyway, as I regularly blacklist new domains, I thought this might be a > > nice addition? I know restarting dnsmasq should not be a problem, but > > may be that's something quick to add? I just don't know? > > > > to be honnest, I don't much about DBUS either, but writing a small > > script to add or remove --address directive would be a good opportunity > > to learn about it. > > > > > > What do you think? > > For playing, write a script which maintains the addresses in an > /etc/hosts formant file, tell dnsmasq to use that file with > --addn-hosts, and send SIGHUP to get the file to be re-read. That way > you don't need any changes to the dnsmasq code. As a long term solution, > I thing your list of problems is valid and means it's probably not a > good idea, but I'm not an IPv6 expert, like most people currently. > >
Thank you for your quick reply. This is indeed one way to do it:) > > > > I know Simon is now "seriously thinking" about adding DHCPv6 support to > > dnsmasq. So I may add one question about it: > > > > Is the DHCPv6 server able to advertise new settings? Or do the clients > > have to wait for their lease to expire (or half that time IIRC) to > > negociate new parameters? > > DHCPv6 adds a RECONFIGURE packet which the server can send to the client > at any time to tell it to get new parameters. I'd expect to support > that eventually, but it's not high priority for implementation. > > This is nice to know DHCPv6 has a RECONFIGURE packet. I'd only use DHCPv6 in order to have local hostname resolution 9and maybe shorter IPv6 addresses, *but* I really like and "need" the router advertissement with e.g. radvd on linux, especially since I have 2 WAN links (IPv6 on both), often one or the other is down so I need a way to tell the "clients" to use the other prefix so the replies come through the working link. Simon, I'm not pushing you in any way, I know, this is probably a corner case and I was about to read about mDNS&Cie anyway. Thank you for dnsmasq and for your help (a few times already). Have a nice day, samlt > Cheers, > > Simon. > > > > > > > > Thank you all! > > > > > > > > [1] http://www.thekelleys.org.uk/dnsmasq/docs/DBus-interface > > > > > > _______________________________________________ > > Dnsmasq-discuss mailing list > > Dnsmasq-discuss@lists.thekelleys.org.uk > > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss > > > > > _______________________________________________ > Dnsmasq-discuss mailing list > Dnsmasq-discuss@lists.thekelleys.org.uk > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
