What is the IPv4 multicast address for all EIGRP routers?

The IPv4 multicast address for all EIGRP (Enhanced Interior Gateway Routing Protocol) routers is 224.0.0.10. This address is specifically designated for routing protocols, allowing EIGRP routers to communicate efficiently with each other without sending packets to all devices in the network.

When EIGRP sends out its routing information, it uses this multicast address to ensure that only routers configured to listen for EIGRP updates receive the information. The choice of 224.0.0.10 allows for efficient communication in scenarios where multiple routers reside within the same multicast group, facilitating a more streamlined and organized exchange of routing information.

Understanding this multicast address is important for network professionals because it helps in configuring EIGRP properly, ensuring that routing updates are disseminated effectively among all EIGRP routers in a given network.