Does radvd also needs to be used?
Michael Sinatra
michael at rancid.berkeley.edu
Wed Nov 3 22:31:38 UTC 2010
On 11/3/10 3:21 PM, Eddie Lania wrote:
> Hello,
>
> A small question:
>
> If i run a dhcpv6 server on a small, not segmented, lan. Do i also need
> to use radvd?
>
> I think i do because dhcpv6 server does not seem to have an option to
> provide a default gateway to the clients, is this correct?
Such an option does not (yet?) exist in the world of DHCPv6. You will
need to provide RAs (e.g. via radvd) to the net so that clients can get
their default routes.
Also, unless you wish for the clients to get SLAAC addresses in addition
to DHCPv6 addresses, you need to unset the 'autoconfig' flag on the RAs,
even if you set the 'managed-config flag'. The RFC used to be very
clear that these two flags are independent, and OSes like Windows
{Vista,7} and Solaris 10 will do both SLAAC and DHCPv6 if both flags are
set.
For a "Brand C" router providing IPv6 connectivity, this is done with
the following interface command:
ipv6 nd prefix xxxx:xxxx:xxxx:xxxx::/xx no-autoconfig
michael
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