IPv6 Flashcards
IPv6 addresses are 128-bits in length
IPv6 loopback is ::1
prefix for a link-local address is FE80
First 64 bits represent the network and the last 64 bits represent the host
IPv6 host address subnet asks are always/64
An automatic host address can be based on the MAC address (EUI-64) or just randomly generated
IPv6
Internet Protocol version 6
IPv6 addresses can be assigned automatically or manually
To get on the internet a computer needs a link-local IPV6 address and a Global IPv6 address
The world is still transitioning to IPv6 and will continue to run IPv6 and IPv4 side by side
IPv6 (Internet Protocol version 6)
Part II
Unicast address with a predefined globally routable prefix
Used for talking out to the public internet
The range of 2001::/16 is assigned to the global registries
IPv6 Address Types - Global Address
Unicast address for the local network link only
Automatically generated for each IPv6 network interface
Predefined prefix of FE80::/64, not globally routable
IPv6 Address Types - Link Local Address
Manually configured
Autoconfiguration
Autogenerated random host address
EUI-64 format based on the MAC address of the host
Take a 48-bit MAC address, split it in half, and insert another 16 bits to make it a 64 host address
48 bits: Global Prefix, 16bits: Subnet, 64 bits: Host Bits(Interface ID)
How to assign host addresses?
DHCPv6 (Global and unique-local only) Uses DUID (DHCP Unique-Identifier) to get an IP address from a DHCPv6 server
How to assign host addresses?
Part II
Values: IP Address, Subnet Mask, Default Gateway, DNS Server
Static -Manual (more secure but harder to manage)
Dynamic - Automatic (less secure but easier to manage)
How are IP addresses assigned?
Unicast (prefix FC00::/7) that is valid within a site or organization or between a limited number of sites
Similar to Private IPV4 addresses, these are not routable on the internet
IPv6 Address Types - Unique Local Address
