IP Configuration
IPv6 Management and Interfaces
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•Lease Exp iration —The lease expiration date and time of the host’s IP
address or Infinite is such was the lease duration defined.
•Type —The manner in which the IP address was assigned to the client. The
possible options are:
-Static—The hardware address of the host was mapped to an IP address.
-Dynamic—The IP address, obtained dynamically from the device, is
owned by the client for a specified period of time. The IP address is
revoked at the end of this period, at which time the client must request
another IP address.
•State—The possible options are:
-Allocated—IP address has been allocated.
-Declined—IP address was allocated but not accepted.
-Expired—The lease of the IP address has expired.
-Pre-Allocated—The IP address was assigned to a static host.
IPv6 Management and Interfaces
The Internet Protocol version 6 (IPv6) is a network-layer protocol for packet-
switched internetworks. IPv6 was designed to replace IPv4, the predominantly
deployed Internet protocol.
IPv6 introduces greater flexibility in assigning IP addresses, because the address
size increases from 32-bit to 128-bit addresses. IPv6 addresses are written as
eight groups of four hexadecimal digits, for example
FE80:0000:0000:0000:0000:9C00:876A:130B. The abbreviated form, in which a
group of zeroes can be left out, and replaced with '::', is also acceptable, for
example, ::-FE80::9C00:876A:130B.
IPv6 nodes require an intermediary mapping mechanism to communicate with
other IPv6 nodes over an IPv4-only network. This mechanism, called a tunnel,
enables IPv6-only hosts to reach IPv4 services, and enables isolated IPv6 hosts
and networks to reach an IPv6 node over the IPv4 infrastructure.
Tunneling uses either an ISATAP or manual mechanism (see IPv6 Tunnel).
Tunneling treats the IPv4 network as a virtual IPv6 local link, with mappings from
each IPv4 address to a link local IPv6 address.
The device detects IPv6 frames by the IPv6 Ethertype.