
31-15
Parameters:
<
poolname
>
is the name for the IPv6 address pool of the prefix delegation, the length name string should be less
than 32.
<
prefix/prefix-length
>
is the address prefix and its length of the prefix delegation.
<
assigned-length
>
is
the length of the prefix in the address pool which can be retrieved by the client, the assigned prefix length should be
no less than the value of
<
prefix-length
>
Command Mode:
Global Mode.
Default:
No IPv6 prefix delegation address pool is configured by default.
Usage Guide:
This command should be used with the
“
prefix delegation pool
” command to allocate address prefixes to the clients.
If IPv6 prefix delegation is removed, the associated
“
prefix delegation
” command will be in-effective either.
31.19 lifetime
Command:
lifetime {
<valid-time>
| infinity} {
<preferred-time>
| infinity}
no lifetime
Function:
To configure the life time for the addresses or the address prefixes allocated by DHCPv6. The no form of this
command will restore the default setting.
Parameters:
<
valid-time>
and <
preferred-time
>
are the valid life time and preferred life time respectively for the allocated IPv6
addresses in the local address pool. Its value is allowed to be between 1 and 31536000 in seconds, and
<
preferred-time
>
should never be bigger than
<valid-time
>
. The
infinity
parameter designates the maximum life
time.
Command Mode:
DHCPv6 Address Pool Configuration Mode.
Default:
The default valid life time and preferred life time are 2592000 seconds (30 days) and 604800 seconds (7 days)
respectively.