Workaround for problems with RA (was: Re: Unwanted RA on LAN)

[Martin Millnert]

Leen,

http://tools.ietf.org/html/rfc4191 .

At this point in time, I think 2000::/3 would be a good pick for your
workaround attempt.

Cheers,
Martin

On Fri, 2011-03-11 at 11:14 +0100, Leen Besselink wrote:
> Hi folks,
> 
> Sorry for hijacking this thread.
> 
> I haven't given this a lot of thought and checked the protocols or
> operating system support so sorry if it is a stupid comment.
> 
> Is it possible to workaround these problems with DHCP on IPv4 by adding
> 2 routes like: 128.0.0.0/1 and 0.0.0.0/1
> And send 2 routes like 0::0/1 and 8000::0/1 along with RA or DHCPv6 ?
> 
> Wouldn't that mean you have the more specific prefix when someone
> announces 0.0.0.0/0 or 0::0/0 by accident ?
> 
> I don't know if these protocols allow this or which operating systems
> support this but couldn't this workaround help prevent disruption ?
> 
> I did see an option static-routes in dhcp-options (5) and list of
> prefixes in radvd.conf (5)
> 
> Someone probably already tried this with IPv4 I'm sure.
> 
> Have a nice day,
>     Leen.
>