IPv6

From DWIKI

IPv6 in general

Links

DNS

Check delegation

dig 1.e.0.1.8.8.8.0.1.0.0.2.ip6.arpa ns


IPv6 on Linux

Protocols and Acronyms

SLAAC

Neighbor Table

States

  • Incomplete — Address Resolution is in process. The neighbor has not yet responded.
  • Reachable — Neighbor is known to be reachable.
  • Stale — Previously-known neighbor is no longer reachable. No action is taken to verify its reachability until traffic must be sent.
  • Delay — Previously-known neighbor is no longer reachable. The interface is in Delay state for a predefined Delay Time. If no reachability confirmation is received, the state changes to Probe.
  • Probe — Neighbor is no longer known to be reachable and Unicast Neighbor Solicitation probes are being sent to verify reachability.


NS-interval

       neighbour sollication interval

ND reachable time

       how long will neighbour be reachable

DAD

       duplicate address detection

RA

Router advertisement


global unicast address or GUA

http://www.tcpipguide.com/free/t_IPv6GlobalUnicastAddressFormat-2.htm

The part of the IPv6 address space set aside for unicast addresses is structured into an address format that uses the first 48 bits for the routing prefix (like a network ID), the next 16 bits for a subnet ID, and the final 64 bits for an interface ID (like a host ID).


Tools


FAQ

Can't ping link-local

ping -6: Invalid argument

or

Destination unreachable: Address unreachable

append "%eth0" or whatever interface name to the address

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