On 09/22/15 at 06:12pm, Jiri Benc wrote: > When using ip lwtunnels, the additional data for xmit (basically, the actual > tunnel to use) are carried in ip_tunnel_info either in dst->lwtstate or in > metadata dst. When replying to ARP requests, we need to send the reply to > the same tunnel the request came from. This means we need to construct > proper metadata dst for ARP replies. > > We could perform another route lookup to get a dst entry with the correct > lwtstate. However, this won't always ensure that the outgoing tunnel is the > same as the incoming one, and it won't work anyway for IPv4 duplicate > address detection. > > The only thing to do is to "reverse" the ip_tunnel_info. > > Signed-off-by: Jiri Benc <jb...@redhat.com>
Great start, thanks! Acked-by: Thomas Graf <tg...@suug.ch> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
