No broadcast addresses and no broadcast traffic mean no broadcast
storms, improving the reliability of the whole network.
Security is increased, thanks to built-in IPsec capabilities.IPv6 addresses can be displayed as 32 hexadecimal
characters split into 8 sections, as follows:
Colons separate entries x:x:x:x:x:x:x:x, where x is a 16-bit hexadecimal
field.
Hexadecimal characters are case insensitive.
Leading zeros in a field are optional.
Successive fields of zero can be represented as :: once per address.An example of an IPv6 address is
2031:0000:120F:0000:0000:09C0:9A73:242C.
Following the guidelines just specified, this address can
also be written as follows:
2031:0000:120F::9C0:9A73:242C (because successive
fields of zero can be represented as ::)
2031:0:120F::9C0:9A73:242C (because leading zeros
in a field are optional)Figure 16-9 shows a simple illustration of how IPv6
addresses and subnetting work.
Figure 16-9 IPv6 Subnetting
The Internet Assigned Numbers Authority (IANA) is the
organization that manages the assignment of IPv6
addresses at a global level. IANA assigns /23 blocks of
IPv6 addresses to the registries that manage IPv6
addresses at a regional level, such as the Asia-Pacific