IPv6 and MAC Addresses Flashcards
IPv6 loopback address
::1
How to broadcast to all devices on a single logical network using MAC Address
FF:FF:FF:FF:FF:FF
IPv6 format
8 4-digit Hexadecimal numbers.
note* Divided into 8 16-bit blocks that are converted to Hexcadeciaml
e. g
2001: 0000:3228:DFE1:0063:0000:0000:FEFB
Can be simplified to
2001:0:3228:DFE1:63::FEFB
IPv6 Simplifying rules
Leading Zeroes can be omitted. e.g 2001:0063 = 2001:63
One group of consecutive 0’s can be replaced by a double colon e.g DFE1:0063:0000:0000:FEFB becomes DFE1:63::FEFB
IPv6 global unicast addresses typically start from what number
2001:2000 to 3FFF
Equivalent to public addresses on IPv4 networks
What does a MAC Address do ?
Uniquely identifies devices on a local network.
What do Network Interface Cards do ?
Allows devices to connect wired (ethernet) and wirelessly(WIFI) to a network.
What does MAC stand for
Media Access Control
What is content ?
The information that you are sharing with the other party. It can have any meaning but will travel in the form of electronic signals
What is Addressing ?
The way in which you locate and identify the other party.
IP addresses instead of names.
How is the IPv6 128 bits divided up ?
First 64 bits are the network bits.
The second 64 bits are the node bits
How many bits in an IPv4 Address ?
32
How many bits in a IPv6 address
128
How many bits in a MAC address
48
Formula for how many unique IPv6 addresses there are
2 * 128
2001:2000 to 3FFF
IPv6 global unicast addresses
Equivalent to public addresses on IPv4 networks
How is a MAC address represented ?
As 6 Hexadecimal numbers.
Where would you often find a NIC
Built into the motherboard.
What is burned into NIC when it is manufactured ?
A unique physical MAC address
How is the first 64 bits of the IPv6 network portion divided up ?
The first 48 of the network bits are global unicast addresses for routing over the internet.
The following 16 are the subnet ID which is controlled by the network.
The node portion of an IPv6 address is the interface ID that is derived from what ?
The MAC address
What is the subnet ID controlled by ?
The network
What is Global Unicast Address for ?
Routing over the Network
Address type that is not routed at all
Link Local
What is Link Local ?
An address type that is not routed at all
Where is Link Local used ?
Only on internal networks (not routed)
What is Link Local equivalent to in IPv4 ?
APIPA on an IPv4 network
What does a Link Local address typically start with ?
FE80
3 address types
Global Unicast Address
Unique Local
Link Local
Where are Global Unicast Addresses routed ?
On the internet
Where are Unique Local addresses routed ?
On the internal network
What are Unique Local addresses equivalent to in IPv4 ?
Private IP addresses in each Class
What does ARP stand for ?
Address Resolution Protocol
