Compare the network layer protocols IPv4 and IPv6

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written 7.9 years ago by

Category	IPv4	IPv6
Address length	32 bits	128 bits
Notation style	Four sets of three digits	Eight sets of four digits separated by a dot
Compression	If all three digits are zero, single zero is used	If all four digits are zero, a double colon is used
Types of addresses	Public, private, multicast	Global, local-use unicast ,anycast
IPSec support	Optional	Required
Broadcast/Multicast	Supports both broadcast and multicast	No broadcast support and has different forms of multicast
Anycast support	Not part of original protocol	Explicit support of anycast
QoS	Less QoS as compared to IPv6	Provides QoS for multimedia data
Fragmentation	Done by hosts and routers	Done by hosts only
Error reporting,and diagnostic	Optional	Automatic, DHCP or manual
DNS record type for name Resolution	A record	AAAA record
DNS record type and location for reverse name resolution	PTR records in IN-ADDR.ARPA domain	PTR records in IP6.ARPA domain
Security	Provides less security as compared to IPv6	Uses authentication and encryption to provide security
Mobility	No support for Mobile IP	Provides support for Mobile IP

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