Author: upravnik

Here is a summary of the most common address prefixes in IPv6:

Multicast addresses in IPv6 are similar to multicast addresses in IPv4. They are used to communicate with dynamic groupings of hosts, for example all routers on the link (one-to-many distribution). Here is a graphical representation of the IPv6 multicast packet: Read More …

Link-local IPv6 addresses have a smaller scope as to how far they can travel: only within a network segment that a host is connected to. Routers will not forward packets destined to a link-local address to other links. A link-local Read More …

Unique local IPv6 addresses have the similar function as IPv4 private addresses. They are not allocated by an address registry and are not meant to be routed outside their domain. Unique local IPv6 addresses begin with FD00::/8. A unique local Read More …

IPv6 global addresses are similar to IPv4 public addresses. As the name implies, they are routable on the internet. Currently IANA has assigned only 2000::/3 addresses to the global pool. A global IPv6 address consists of two parts: subnet ID Read More …

Unicast addresses represent a single interface. Packets addressed to a unicast address will be delivered to a specific network interface. There are three types of IPv6 unicast addresses: global unicast – similar to IPv4 public IP addresses. These addresses are Read More …

Three categories of IPv6 addresses exist: Unicast – represents a single interface. Packets addressed to a unicast address are delivered to a single interface. Anycast – identifies one or more interfaces. For example, servers that support the same function can Read More …

Unlike IPv4, which uses a dotted-decimal format with each byte ranges from 0 to 255, IPv6 uses eight groups of four hexadecimal digits separated by colons. For example, this is a valid IPv6 address: 2340:0023:AABA:0A01:0055:5054:9ABC:ABB0 If you don’t know how Read More …

IPv6 is the newest version of the IP protocol. IPv6 was developed to overcome many deficiencies of IPv4, most notably the problem of IPv4 address exhaustion. Unlike IPv4, which has only about 4.3 billion (2 raised to power 32) available Read More …

With Port Address Translation (PAT), a single public IP address is used for all internal private IP addresses, but a different port is assigned to each private IP address. This type of NAT is also known as NAT Overload and Read More …