IPv6 Addressing Flashcards
IPv6 address is a _________.
128-bit address that is displayed in a hexadecimal format.
The IPv6 Address is divided into 8
16-bit groups, each separated by a colon (:).
You can replace consecutive zeros with ____
double colons (::) when referencing an address that has a group of zeros in the address. This process is know as compressing zeros.
IPv6 uses three types of of addresses:
Unicast, Multicast, and anycast
Unicast
Used for one-to-one communication
Multicast
Used to send data to a group of systems
Anycast
Applied to a group of systems providing a service. Clients that send data to the anycast address could have the data sent to any of the systems that are part of the anycast address.
Three different types of unicast addresses:
Global unicast, site-local unicast, and link-local unicast.
Global unicast
A public IPv6 address that is routable on the internet. This address type is equivalent to a public IP address with IPv4.
Site-local unicast
A private address for the IPv6 protocol; the address always starts with FEC0. The site -local address cannot be used to communicate off the local site or network and is not reachable by other sites or systems on the internet.
Link-local unicast
An address that is self-assigned and is used to communicate only with other nodes on the link.
Link-local addresses always start with
FE80
IPv6 loopback address:
0:0:0:0:0:0:0:1 or ::1
The address for a system with no address specified
0:0:0:0:0:0:0:0 or (::)
The newer version of IP is responsible for
Logical addressing and routing functions
ICMPV6 Protocol is responsible for error and status information. ICMPV6 uses codes, each code indicates the type messages:
Codes from 0 to 127 are used by error messages, while codes 128 to 255 are for information messages.
Multicast Listener Discovery (MLD)s
Is used for multicast communication.
Neighboring Discovery (ND)
Replaces ARP from the IPv4 days by performing the same function, but it is responsible for neighboring router discovery, automatic address assignment, and duplicate address detection, to name a few features.
