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| − | + | The '''Preferred Lifetime''' is the length of time that a valid address is preferred. When the Preferred Lifetime expires, the address becomes deprecated. | |
| − | + | A preferred address means the host can send and receive traffic using this address. After the Preferred Lifetime has expired a host can no longer create new connections using this address. | |
| − | + | The '''Valid Lifetime''' is the length of time the address remains in the valid state. The Valid Lifetime MUST be greater than or equal to the Preferred Lifetime. When the Valid Lifetime expires, the address becomes invalid.<ref>https://tools.ietf.org/html/draft-ietf-dhc-dhcpv6-03</ref><br> | |
| − | + | If the Preferred Lifetime expires the host will not be able to create any new connections using this address, but any existing connections are valid until the Valid Lifetime expires.<ref>https://tools.ietf.org/html/rfc4862#section-5.5.4</ref>. | |
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[[File:dhcp6_lifetime.png|600px]] | [[File:dhcp6_lifetime.png|600px]] | ||
Latest revision as of 18:21, 13 April 2021
The Preferred Lifetime is the length of time that a valid address is preferred. When the Preferred Lifetime expires, the address becomes deprecated. A preferred address means the host can send and receive traffic using this address. After the Preferred Lifetime has expired a host can no longer create new connections using this address.
The Valid Lifetime is the length of time the address remains in the valid state. The Valid Lifetime MUST be greater than or equal to the Preferred Lifetime. When the Valid Lifetime expires, the address becomes invalid.[1]
If the Preferred Lifetime expires the host will not be able to create any new connections using this address, but any existing connections are valid until the Valid Lifetime expires.[2].
