Difference Between IPv6 and IPv4

IPv4

IPv6

Deployed

1981

1999

Address Format

32 Bits Dotted Decimal Notation.

128 Bits Hexadecimal Notation.

Number of Addresses

Subnetting

Subnet identified by subnet mask.

Subnet identified within the address.

Routing Protocols

RIP, RIPv2, EIGRP

RIP, RIPv2, EIGRP

Classfull / Classless

Classful and Classless.

Classless Addressing Scheme.

Address Configuration

Static, DHCP

Stateless Autoconfiguration, DHCP v6.

Loopback Address

127.0.0.1

::1

Broadcast Address Types

Multicast / Broadcast

Anycast

Header Length

20 bytes

40 bytes