From: Brian Russell <bruss...@brocade.com> Date: Mon, 20 Feb 2017 17:03:54 +0000
> When using IPv6 transport and a default dst, a pointer to the configured > source address is passed into the route lookup. If no source address is > configured, then the value is overwritten. > > IPv6 route lookup ignores egress ifindex match if the source adress is set, > so if egress ifindex match is desired, the source address must be passed > as any. The overwrite breaks this for subsequent lookups. > > Avoid this by copying the configured address to an existing stack variable > and pass a pointer to that instead. > > Signed-off-by: Brian Russell <bruss...@brocade.com> I really would like you to try and find a way to avoid this address copy. It means even with a cached route, we are going to copy a 128-bit address onto the stack _every single_ packet vxlan transmits.