Re: IPv6 status on Debian for workstations / DHCP networks?
Daniel Pocock <daniel@pocock.com.au> wrote:
>> dhcpd does not have to run on the router. DHCPv6 servers are found by
>> multicast. Unless you set M=1 in your RAs, your hosts will not use
>> DHCPv6 for address allocation, so it makes little sense to attempt to
>> tie DNS updates to DHCPv6 in my opinion.
> I've configured radvd on the router for M=1 - so all hosts should be
> using DHCPv6 and therefore DDNS should be maintained
okay.... my observation is that client side dhcpv6 is unusual still at this
point. Certainly none of my phone/tablet devices will do that, and they all
speak ipv6 RA just fine.
>> If you want DNS servers from the RA, then you need a seperate daemon.
> Ok, thanks for that feedback
> So the default Debian installation (with nothing in interfaces) would
> only use SLAAC and not try stateful DHCPv6 at all - so a site admin who
> wants to allow "anything" to just plug in and work should not set M=1
> in the RA?
Yes.
You *could* try advertising run two prefixes on the same subnet, one with
M=1, other with M=0. I don't know how clients that had dhcpv6 would respond
to that. Or if it's wireless devices, I'd run two ESSIDs.
> One issue I've observed on older machines that have been upgraded is
> that the IPv6 setting in NetworkManager is sometimes set to "Ignored"
> while on fresh installs it is in "Automatic" mode - so people who have
> upgraded need to go in and change that or they won't experience dual
> stack.
I can believe it.
On my new laptop, I tried NM again, and it has a habit of opening a hundred
WPA passphrase requests :-)
--
] Never tell me the odds! | ipv6 mesh networks [
] Michael Richardson, Sandelman Software Works | network architect [
] mcr@sandelman.ca http://www.sandelman.ca/ | ruby on rails [
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