Hi, On Mon, Feb 25, 2019 at 04:53:27PM +0100, Ralf Jung wrote: > Hi again, > > It turns out that setting disable_ipv6=0 is not enough to regain working IPv6: > Now the RAs from the router arrive at the client, but when the client sends a > neighbor discovery, it never makes its way to the router, so the client cannot > actually communicate via IPv6. I can see the ND packages on vnet2 on the host, > but not on virbr1 (which vnet2 is attached to). Again this is something that > worked just fine before the update. > > I have no idea what is preventing the ND packages to be forwarded by the > bridge. > I always thought bridges are just switches operating on layer 2, but it seems > that's as from the truth...
Can you check if downgrading the kernel helps? -- Guido

