which protocol is used by eigrp to send hello packets
â¢ EIGRP will form neighbor relationships with adjacent routers in the same Autonomous System (AS) . â¢ EIGRP traffic is either sent as unicasts, or as multicasts on address 224.0.0.10, depending on the EIGRP packet type. â¢ Reliable Transport Protocol (RTP) is used to ensure delivery of most EIGRP packets.