Similiar to commit e94cd8113ce63 ("net: remove MTU limits for dummy and ifb device"), MTU is irrelevant for VRF device. We init it as 64K while limit it to [68, 1500] may make users feel confused.
Reported-by: Jianlin Shi <ji...@redhat.com> Signed-off-by: Hangbin Liu <liuhang...@gmail.com> --- drivers/net/vrf.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index 95909e262ba4..7c1430ed0244 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -1273,6 +1273,9 @@ static void vrf_setup(struct net_device *dev) /* default to no qdisc; user can add if desired */ dev->priv_flags |= IFF_NO_QUEUE; + + dev->min_mtu = 0; + dev->max_mtu = 0; } static int vrf_validate(struct nlattr *tb[], struct nlattr *data[], -- 2.19.2