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 | 21 +++++---------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/pvesdn.adoc b/pvesdn.adoc index d20a0eb..fed9664 100644 --- a/pvesdn.adoc +++ b/pvesdn.adoc @@ -604,23 +604,12 @@ behavior and proper source address selection throughout the fabric. 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 is currently only usable on OpenFabric and BGP fabrics. These IPv6 Fabrics +need 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 using the force_forwarding flag. More details here: +docs.kernel.org/networking/ip-sysctl.html [[pvesdn_openfabric]] OpenFabric -- 2.47.3
