diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/udp_tunnel_nic.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/ipv4/udp_tunnel_nic.c b/net/ipv4/udp_tunnel_nic.c index f0dbd9905a53..69962165c0e8 100644 --- a/net/ipv4/udp_tunnel_nic.c +++ b/net/ipv4/udp_tunnel_nic.c @@ -7,6 +7,7 @@ #include <linux/types.h> #include <linux/workqueue.h> #include <net/udp_tunnel.h> +#include <net/vxlan.h> enum udp_tunnel_nic_table_entry_flags { UDP_TUNNEL_NIC_ENTRY_ADD = BIT(0), @@ -504,6 +505,12 @@ __udp_tunnel_nic_add_port(struct net_device *dev, struct udp_tunnel_info *ti) return; if (!netif_running(dev) && info->flags & UDP_TUNNEL_NIC_INFO_OPEN_ONLY) return; + if (info->flags & UDP_TUNNEL_NIC_INFO_STATIC_IANA_VXLAN && + ti->port == htons(IANA_VXLAN_UDP_PORT)) { + if (ti->type != UDP_TUNNEL_TYPE_VXLAN) + netdev_warn(dev, "device assumes port 4789 will be used by vxlan tunnels\n"); + return; + } if (!udp_tunnel_nic_is_capable(dev, utn, ti)) return; |