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 |