What is RIPv2?

RIPv2, or Routing Information Protocol version 2, is a distance-vector routing protocol used in internet Protocol (IP) networks. It enhances the original RIPv1 by supporting Classless Inter-Domain Routing (CIDR), allowing for the transmission of subnet information and enabling more efficient use of IP address space. RIPv2 also supports authentication for routing updates, improving security and reliability. It operates using a maximum hop count of 15, beyond which routes are considered unreachable.