diff --git a/sys/dev/mlx5/mlx5_en/mlx5_en_main.c b/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
--- a/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
+++ b/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
@@ -4376,7 +4376,7 @@
 	ifp->if_mtu = ETHERMTU;
 	ifp->if_init = mlx5e_open;
 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
-	    IFF_KNOWSEPOCH;
+	    IFF_KNOWSEPOCH | IFF_ALLMULTI;
 	ifp->if_ioctl = mlx5e_ioctl;
 	ifp->if_transmit = mlx5e_xmit;
 	ifp->if_qflush = if_qflush;