[Olsr-users] OLSRv2 IPv6-only

[Henning Rogge]

On Sat, Jun 13, 2015 at 9:43 PM, Bastian Rosner <(spam-protected)> wrote:
> Hi,
>
> how can i configure olsrv2 to only use IPv6?
>
> All i found is setting "bindto" in interface-section to an assigned
> IPv6-address. But this doesn't seem to be dynamic and zeroconfig-ish.

Yes, bindto is the right place...

the default for this parameter (run --schema=interface.bindto to see) is:
        '-127.0.0.0/8'
       '-::1'
       'default_accept'

Set bindto to something like
        '-0.0.0.0/0'
       '-::1'
       'default_accept'

means it will ignore all IPv4 addresses.

> Will olsrv2 modify IPv4 routes in kernel even if neighbor is only
> reachable via IPv6?

No. The NHDP Hello mechanism will always be used on the "right IP
protocol", only forwarded messages like the Olsrv2 TC might be
aggregated in a different protocol type (e.g. IPv4 TC message within
an IPv6 UDP packet).

> I'd like to avoid routing-issues with a concurrent running olsrv1 -
> which is IPv4-only.

Setting bindto to the right value (and removing the auto_ll4 plugin!)
should be okay for you.

Henning