The patch 'ip_gre: ipgre_tap device should keep dst' fixed a issue that ipgre_tap mtu couldn't be updated in tx path.
The same fix is needed for ip6gre_tap as well. Signed-off-by: Xin Long <lucien....@gmail.com> --- net/ipv6/ip6_gre.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index 20f66f4..1602b49 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -1311,6 +1311,7 @@ static void ip6gre_tap_setup(struct net_device *dev) dev->features |= NETIF_F_NETNS_LOCAL; dev->priv_flags &= ~IFF_TX_SKB_SHARING; dev->priv_flags |= IFF_LIVE_ADDR_CHANGE; + netif_keep_dst(dev); } static bool ip6gre_netlink_encap_parms(struct nlattr *data[], -- 2.1.0