Automatic tunnel establishing method and device

Abstract

The invention discloses an automatic tunnel establishing method and an automatic tunnel establishing device. The automatic tunnel establishing method comprises the following steps: inquiring a routing table by a local node to obtain a next hop as a routing table entry of a tunnel; sending a tunnel detection message by the local node, wherein a destination address of the tunnel detection message is a destination address of the routing table entry and a source address of the tunnel detection message is a source address of the tunnel, so that when a node receiving the tunnel detection message determines an own configured tunnel and the destination address can be arrived, the source address is recorded as the destination address of the configured tunnel, and the local node sends a tunnel detection response message, wherein a source address of the tunnel detection response message is a source address of the configured tunnel of the node receiving the tunnel detection message; receiving the tunnel detection response message by the local node, recording the source address of the tunnel detection response message as the destination address of the tunnel of the local node. Through the automatic tunnel establishing method and the automatic tunnel establishing device, automatic tunnel establishment can be achieved and the configuration workload is reduced.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for automatically establishing a tunnel. Background technique [0002] Tunneling is a way of passing data between networks through the internetwork infrastructure. The data transmitted through the tunnel can be data frames or packets of different protocols. The tunnel protocol re-encapsulates the data frames or packets of these other protocols in a new packet header and sends them. The encapsulated data packets are transmitted between the two endpoints of the tunnel through the The internetwork does the routing, and once it reaches the end of the network, the data is unpacked and forwarded to the final destination. During the entire transmission process, the logical path through which the encapsulated data packets are transmitted on the public Internet is called a tunnel. [0003] The Generic Routing Encapsulation (GRE) protocol is a typical tunneling ...

AI Technical Summary

Problems solved by technology

[0004] Before transmitting data in the Internet through a tunnel, a tunnel must first be established between the local node and the peer node for data transmission. At present, tunnels are generally established between nodes through manual configuration. Therefore, when networking When a large number of tunnels need to be established in the network, or point-to-multipoint tunnels need to be created, the configuration work required to establish tunnels will become more complicated and the workload will be too large

Images