There are five network layer protocols: ARP, RARP, IP, ICMP, and IGMP.
ICMP itself is a network layer protocol. However, its messages are not passed directly to the data link layer as would be expected. Instead, the messages are first encapsulated inside ip datagrams before going to the lower layer.
I am aware that ICMP, IGMP, OSPF they will be encapsulated within an ip packet, what about the other ?
ICMP itself is a network layer protocol. However, its messages are not passed directly to the data link layer as would be expected. Instead, the messages are first encapsulated inside ip datagrams before going to the lower layer.
I am aware that ICMP, IGMP, OSPF they will be encapsulated within an ip packet, what about the other ?
