From: Mahesh Bandewar <mah...@bandewar.net>
Date: Wed, 11 Oct 2017 17:16:26 -0700
> From: Mahesh Bandewar <mahe...@google.com>
>
> If the underlying master ever changes its L2 (e.g. bonding device),
> then make sure that the IPvlan slaves always emit packets with the
> current L2 of the master instead of the stale mac addr which was
> copied during the device creation. The problem can be seen with
> following script -
>
> #!/bin/bash
> # Create a vEth pair
> ip link add dev veth0 type veth peer name veth1
> ip link set veth0 up
> ip link set veth1 up
> ip link show veth0
> ip link show veth1
> # Create an IPvlan device on one end of this vEth pair.
> ip link add link veth0 dev ipvl0 type ipvlan mode l2
> ip link show ipvl0
> # Change the mac-address of the vEth master.
> ip link set veth0 address 02:11:22:33:44:55
>
> Fixes: 2ad7bf363841 ("ipvlan: Initial check-in of the IPVLAN driver.")
> Signed-off-by: Mahesh Bandewar <mahe...@google.com>
Applied.
