TP-Link TL-ER6120 TL-ER6120 User Guide - Page 73
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3.3.5.2 RIP RIP (Routing Information Protocol) is a dynamic route protocol using distance vector algorithm to select the optimal path. With features of easy configuration, management and implementation, it is widely used in small and medium-sized networks such as the campus network. The distance of RIP refers to the hop counts that a data packet passes through before reaching its destination, the value range of which is 1-15. It means the destination cannot be reached if the value is more than 15. Optimal path indicates the path with the fewest hop counts. RIP exchanges the route information every 30 seconds by broadcasting UDP packets. If one Router has not sent route information in 180 seconds, the RIP of the other routers would set the distance to this Router into infinity and delete the corresponding information from route table. RIP develops from initial RIPv1 to RIPv2 gradually. Compared with RIPv1, RIPv2 supports VLSM (Variable Length Subnet Mask), simple plain text authentication, MD5 cryptograph authentication, CIDR (Classless Inter-Domain Routing) and multicast. TL-ER6120 supports both RIPv1 version and RIPv2 version, thus you can configure the RIP version based on the actual need to improve the network performance. Choose the menu Advanced→Routing→RIP to load the following page. Figure 3-43 RIP The following items are displayed on this screen: ¾ General Interface: Displays the interfaces which has been physically connected or assigned static IP. -68-