[Dnsmasq-discuss] announce prefix only
gui at altermundi.net
Sun Oct 26 22:55:41 GMT 2014
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26/10/14 15:54, Moritz Warning:
> I get confused a bit with slaac, ra-names etc..
hehe... it took me some time to get my head around it too :)
ra-names it's just a "feature" that you add on top of slaac or ra-stateless
both slaac and ra-stateless will set the A bit (=yes)
so hosts will autoconfigure themselves addresses
the difference is that slaac will unset O bit (=no), so hosts will just
get the RA, autoconfig an address, and that's it,
while ra-stateless sets the O bit (=yes), so after hosts get the RA,
they are expected to send a DHCPv6 request for "other" information (dns
server, dns domain...)
in both cases, tho, the address is autoconfigured, since M bit is unset
(no DHCPv6 transaction to receive an address)
unless you specify a range, of course, like
which sets the M bit (=yes), so if you append either slaac or
ra-stateless, will result in hosts getting 2 addresses: one
autoconfigured, and one transactd through DHCPv6
> In my case the router does not have Internet access,
> but still, I like the clients to have slaac addresses
> according to some specific prefix (fdef:..).
> So that I do not have to resort to link local addresses.
> I think I need the A and M bit unset in the RA packets.
mmh.. you need the A bit *set*, to make hosts have slaac addresses
> But how can this be accomplished?
any of the following possibilites
all of those will have M bit unset (no dhcpv6 range specified)
the second (and 4th) allows you to tell hosts for ex. dns domain
and the last two, if combined with dhcpv4, will also try to discover
hosts autoconfig addresses and relate those (resolve) to names learned
hope i didn't mix things up,
> Thanks for the help.
> - mwarning
> Dnsmasq-discuss mailing list
> Dnsmasq-discuss at lists.thekelleys.org.uk
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