Network+ Chapter 7 | 02 IP Addressing IPv6

What other types of communication does IPv6 offer

unicast and anycast

Define IPv4 embedded address in IPv6

An IPv6 address that carries an IPv4 address in the low-order 32 bits of the address.

Define Loopback address in IPv6

An address not assigned to any physical interface that can be used for a host to send an IPv6 packet to itself.

What to Multicast IPv6 addresses begin with

FF

What are the different types of unicast addresses in IPv6

Global Unicast 2000::/3 Link-Local fe80::/10 Loopback ::1/128 Unspecified ::/128 Unique Local fc00::/7 Embedded IPv4 ::/80

Where are IPv6 addresses defined

in RFC 4291, IP Version 6 Addressing Architecture.

Does IPv6 allow broadcasts

no

How long is an IPv6 address?

128-bits - 8 16bit hexadecimal colon delimited blocks

Define global unicast address in IPv6

A routable address in the IPv6 Internet, similar to a public IPv4 address (covered in more detail in Chapter 5).

What is the range of the first Hextet in Globally routable unicast IPv6 addresses

Begins with 2000 to 3fff

What is the range of the first Hextet in link-local IPv6 address begin with

FE80 thru febf

What is prefix length notation

IPv6 address prefixes can be represented much the same way that IPv4 address prefixes are written in CIDR notation. An IPv6 address prefix (the network portion of the address) is represented using the following format: ipv6-address/prefix-length

What is the interface id

Interface ID is the equivalent to the host portion of an IPv4 address.

Define Unique local address in IPv6

Similar to a private address in IPv4 (RFC 1918) and not intended to be routable in the IPv6 Internet. However, unlike RFC 1918 addresses, these addresses are not intended to be statefully translated to a global unicast address.

What are IPv6 unicast addresses

The most significant types are global unicast addresses, which are equivalent to IPv4 public addresses, and link-local addresses. A unicast address uniquely identifies an interface on an IPv6 device. A packet sent to a unicast address is received by the interface that is assigned to that address. Similar to IPv4, a source IPv6 addresses must be a unicast address.

what is prefix length

The prefix-length is a decimal value indicating the number of leftmost contiguous bits of the address. It identifies the prefix (that is, the network portion) of the address. It is also used with unicast addresses to separate the prefix portion of the address from the Interface ID.

what are IPv6 address types

Unicast Global Unicast Addresses Link-Local Addresses Unique Local Addresses Multicast Anycast

Define unspecified address in IPv6

Used only as a source address and indicates the absence of an IPv6 address.

Define link-local address in IPv6

Used only to communicate with devices on the same local link

What is anycast communication

allows the same address to be placed on more than one device