[ipv6hackers] Autoassign IPv6 address to the interface SENDIN OUT the RA?

Owen DeLong owend at he.net
Wed Mar 28 21:47:16 CEST 2012

In general, the system generating the RAs will not autoconfigure its own addresses because the address autoconf process takes place before radvd starts and it creates a chicken-egg like circular dependency.

There's not going to be anything in radvd documentation because radvd only does the advertisement portion of the transaction and has nothing to do with local interface configuration.

The entry required in /etc/network/interfaces would be similar to:

iface eth0 ipv6 auto

(I don't have the exact details in front of me at the moment, so syntax may be different).

However, since autoconf will have failed before radvd starts, this may be less than useful.

radvd should only need to bind to link local, so if you can get it to start and then re-attempt stateless autoconf, that should make what you want possible, but, I still don't recommend it.


Sent from my iPad

On Mar 28, 2012, at 2:05 AM, Matija Grabnar <matija at serverflow.com> wrote:

> Hi!
> This question may be too trivial for this group, please be patient and
> just point me to the relevant docs if so.
> The background: I have a network of Linux servers. One of the servers is the
> IPv6 gateway, and it uses radvd to notify all the other servers of the network prefix,
> so the servers can autoconfigure their IPv6 addresses.
> So far, no problems. The problem I have is that the interface I am sending FROM does not
> autoconfigure - unless I assign an address to it manually, (for instance in /etc/network/interfaces)
> it only gets a link local address.
> It's not a critical problem, I just find it annoying, and I'd like to find a way to fix it. I looked through the radvd man page and couldn't see anything relevant. Anyway, I suspect it may be something I need to set on the Linux (in this particular case, Debian) side, and not in radvd.
> Any hints, comments, pointers?
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