IPv6 Addressing
IPv6 Address Deprecation
Notes Preferred and valid lifetimes on a VLAN interface are determined by the router
advertisements received on the interface. These values are not affected by the
lease time assigned to an address by a DHCPv6 server. That is, lease expiration
on a DHCPv6-assigned address terminates use of the address, regardless of
the status of the RA-assigned lifetime, and router-assigned lifetime expiration
of a leased address terminates the switch’s use of the address. (The router-
assigned lifetime can be extended by receipt of a new router advertisement.)
Statically configured IPv6 addresses are regarded as permanent addresses,
and do not expire.
Related Information
■ RFC 2462: “IPv6 Stateless Address Autoconfiguration”
■ RFC 4291: “IP Version 6 Addressing Architecture”
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