RIP

Routing Information Protocol (RIP) is a distance-vector routing protocol that

  • uses hop count as the metric for path selection,

  • exchanges RIP broadcasts with neighboring devices to dynamically learn and advertise routes, and

  • includes four basic components: routing update process, RIP routing metrics, routing stability, and routing timers.

RIP characteristics and versions

RIP is a widely used routing protocol. It sends routing updates at regular intervals and when the network topology changes. These updates provide information about network reachability and the number of hops to each destination..

You can configure RIP with less effort than OSPF, but it generates more network traffic. RIP supports both Version 1 and Version 2.

Secure Firewall Threat Defense device supports both RIP Version 1 and Version 2. RIP Version 1 does not send subnet masks with its updates; Version 2 supports variable-length subnet masks and neighbor authentication to ensure trusted routing information exchanges.

RIP offers simple configuration and adapts to topology changes. In contrast, static routes require manual updates for each change. RIP, however, incurs higher network and processing overhead compared to static routing.