Method for sending ARP message in VxLAN, VTEP and VxLAN controller

The invention discloses a method for sending an ARP (Address Resolution Protocol) message in a VxLAN (Virtual Extensible LAN), a VTEP (VxLAN Tunnel Endpoint) and a VxLAN controller so that a problem that resource waste is generated because messages are sent in a multicast method is eliminated. The method for sending the ARP message mainly includes that: a source VTEP receives an ARP message of a source virtual machine (VM), wherein the APP message is used for requesting a media access control MAC address of a target VM and the ARP message carries the IP address of the target VM; the IP address of the target VM, carried in the APP message is acquired; a query request is sent to the VxLAN controller so as to acquire the IP address of a target VTEP, wherein the query request carries the IP address of the target VM; the IP address of the target VTEP is acquired from the VxLAN controller; the APP message is packaged according to the IP address of the target VTEP so that a VxLAM message is generated; and the VxLAM message is sent to the target VTEP.