46 Cloud ComPuting networking
2.4 Internet Layer Protocols
In the TCP/IP architecture, protocols in the Internet layer are used to deliver packets
from a source host to a destination host across a network. e IP is a well-known
Internet layer protocol. It is the core protocol in the TCP/IP architecture. IP is the
protocol that carries packets to the destination host. e journey may cross various
types of networks. Another signicant Internet layer protocol is the Internet Control
Message Protocol (ICMP) used by network operating systems to get responses from
remote hosts. e Address Resolution Protocol (ARP) relates an IP address with its
hardware address, and IP Security (IPSec) is for securing IP communication. ere
is an argument on which ...