#define ETHER_TYPE_RARP 0x8035 /**< Reverse Arp Protocol. */
#define ETHER_TYPE_VLAN 0x8100 /**< IEEE 802.1Q VLAN tagging. */
#define ETHER_TYPE_QINQ 0x88A8 /**< IEEE 802.1ad QinQ tagging. */
+#define ETHER_TYPE_ETAG 0x893F /**< IEEE 802.1BR E-Tag. */
#define ETHER_TYPE_1588 0x88F7 /**< IEEE 802.1AS 1588 Precise Time Protocol. */
#define ETHER_TYPE_SLOW 0x8809 /**< Slow protocols (LACP and Marker). */
#define ETHER_TYPE_TEB 0x6558 /**< Transparent Ethernet Bridging. */
#define ETHER_VXLAN_HLEN (sizeof(struct udp_hdr) + sizeof(struct vxlan_hdr))
/**< VXLAN tunnel header length. */
+/**
+ * VXLAN-GPE protocol header (draft-ietf-nvo3-vxlan-gpe-05).
+ * Contains the 8-bit flag, 8-bit next-protocol, 24-bit VXLAN Network
+ * Identifier and Reserved fields (16 bits and 8 bits).
+ */
+struct vxlan_gpe_hdr {
+ uint8_t vx_flags; /**< flag (8). */
+ uint8_t reserved[2]; /**< Reserved (16). */
+ uint8_t proto; /**< next-protocol (8). */
+ uint32_t vx_vni; /**< VNI (24) + Reserved (8). */
+} __attribute__((__packed__));
+
+/* VXLAN-GPE next protocol types */
+#define VXLAN_GPE_TYPE_IPV4 1 /**< IPv4 Protocol. */
+#define VXLAN_GPE_TYPE_IPV6 2 /**< IPv6 Protocol. */
+#define VXLAN_GPE_TYPE_ETH 3 /**< Ethernet Protocol. */
+#define VXLAN_GPE_TYPE_NSH 4 /**< NSH Protocol. */
+#define VXLAN_GPE_TYPE_MPLS 5 /**< MPLS Protocol. */
+#define VXLAN_GPE_TYPE_GBP 6 /**< GBP Protocol. */
+#define VXLAN_GPE_TYPE_VBNG 7 /**< vBNG Protocol. */
+
+#define ETHER_VXLAN_GPE_HLEN (sizeof(struct udp_hdr) + \
+ sizeof(struct vxlan_gpe_hdr))
+/**< VXLAN-GPE tunnel header length. */
+
/**
* Extract VLAN tag information into mbuf
*