On 01.06.2026 17:15, Lukas Sichert wrote: > OpenFabric fabrics with IPv6 need forwarding on transit nodes so packets > can be relayed between peers that are not directly connected. > > Drop the old recommendation to enable host-wide > net.ipv6.conf.all.forwarding from the documentation. The generated fabric > interface configuration now handles the required forwarding setup, so the > manual global forwarding workaround is no longer needed. > > Signed-off-by: Lukas Sichert <[email protected]> > --- > pvesdn.adoc | 18 +++--------------- > 1 file changed, 3 insertions(+), 15 deletions(-) > > diff --git a/pvesdn.adoc b/pvesdn.adoc > index d20a0eb..ac7240c 100644 > --- a/pvesdn.adoc > +++ b/pvesdn.adoc > @@ -605,22 +605,10 @@ Notes on IPv6 > ^^^^^^^^^^^^^ > > IPv6 is currently only usable on OpenFabric fabrics. These IPv6 Fabrics need > -global IPv6 forwarding enabled on all nodes contained in the fabric. Without > +IPv6 forwarding enabled on all transit nodes contained in the fabric. Without > IPv6 forwarding, non-full-mesh fabrics won't work because the transit nodes > -don't forward packets to the outer nodes. Currently there isn't an easy way > to > -enable IPv6 forwarding per-interface like with IPv4, so it has to be enabled > -globally. This can be accomplished by appending this line: > - > ----- > -post-up sysctl -w net.ipv6.conf.all.forwarding=1 > ----- > - > -to a fabric interface in the `/etc/network/interfaces` file. This will enable > -IPv6 forwarding globally once that interface comes up. Note that this affects > -how your interfaces handle automatic IPv6 setup (SLAAC), Neighbour > -Advertisements, Router Solicitations, and Router Advertisements. More details > -here: https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt under > -`net.ipv6.conf.all.forwarding`. > +don't forward packets to the outer nodes. IPv6 fowarding is enabled per > default > +on the necessary interfaces. > > [[pvesdn_openfabric]] > OpenFabric > --
I'd mention here somewhere that `force_forwarding` is used (and maybe link to the kernel docs).
