Understanding Internet Protocol, DNS and the Developers of the Internet

DATA COMMUNICATIONS

INTERNET PROTOCOL
• Internet Protocol (IP) is a set of rules for digital formats of
messages.
• The IP is the major protocol in the layer of Internet
Protocol Suite.
• The primary purpose of IP is the transfer of datagrams
from the source host to the destination host (Zhang, Tang
and Cai 2014)

DIFFERENCES BETWEEN IPV4
AND IPV6
IPv4 IPv6
The length of the address is 32
bits (4 bytes)
The length of the address is 128
bits (16 bytes)
The header of IPv4 includes a
checksum
The header of IPv6 does not
include a checksum
The header of IPv4 includes an
option
In IPv6 there is an optional data
that supports extension headers
The IPsec header support in IPv4
is optional
The IPsec header in IPv6 is
mandatory (Wu et al. 2013)