On Mon, 18 Sep 2017 17:21:11 +0200 Andrés Pozo Muñoz <andres.pozom@xxxxxxxxx> wrote: > Hi all, > > I'm facing some problem with ethernet multicast traffic and QinQ > (802.3q in both tags) in -apparently- a bridge in Ubuntu 16.04 > (4.12.0-041200-generic). > > My set up is the following: > +-----------+ > | VM | > +-----+-----+ > | > | tag 55 > +---------+------------+ > | OVS | > +-----------+----------+ > | veth3.9 > veth3 + | > +--+ > | veth2 > +-------+----------+ > | BRIDGE | > +-------+----------+ > | > | > +-------+----------+ > | ens11f1 | > +------------------+ > > > I am setting the inner tag with OVS and the outer tag with a vlan type veth. > The problem I have is that every packet sent from the VM to Ethernet > broadcast addresses (33:33:xx:xx:xx:xx) generates a "IPv6 header not > found" entry in syslog. > > If I generate a 'ens11f1.9' interface and remove the BRIDGE, the log > entry dissapears. > > Some questions: > * Is there any problem with these packets (ethernet multicast with > QinQ) in bridges? > * Is there any configuration I should change for the problem to dissapear? > > Thanks in advance for your help! Any hint about what could be > generating those logs is appreciated. > > Regards, > Andrés Pozo Where is the log message coming from? Could you change the printk into a WARN_ON_ONCE and get backtrace? My guess is the firewall code doesn't understand the additional tag.
