The new technology of Route redistribution implements multiple routing protocols and communication cases between different networks.

In practical applications, routers are usually connected to many different networks. To achieve communications between multiple different networks, you must configure the routing protocol on the routers. In some large network topologies, in some cases, multiple routing protocols exist together. A new technology-route redistribution is required. Due to the company's business development needs, the company acquired another company, the new company's original network operation OSPF protocol, the company and its subsidiaries run the RIP Protocol, in order to keep the original network topology unchanged for the headquarters and subsidiaries to update routing information normally, the headquarters and subsidiaries are encapsulated in Wan PPP, routing bidirectional redistribution is often required for business development. For example: www.2cto.com 1. RA route configuration: 2. RB route configuration: 3. RC route configuration: Route redistribution, routing information can be distributed from one protocol to the routing information of another protocol, so as to implement mutual learning between network devices and achieve network-wide interconnection, this is often used in a large network. Instructions for use of www.2cto.com RIP Protocol: 1. The no auto-summary function is only supported by RIP v2. 2. The same version of RIP Protocol must be enabled between routers to learn from each other and implement dynamic routing information. OSPF protocol instructions for use: 1. When declaring a direct connection CIDR block using OSPF routing protocol, you can use the anti-Mask Of This CIDR block. 2. When declaring a direct connection CIDR block, you must specify the region to which it belongs.