Prefix delegation pools

In this table, you specify the prefixes that the DHCPv6 server delegates to other routers:

PD-Pool-Name
Name of the PD pool
First prefix
First prefix for delegation in the PD pool, e.g. "2001:db8:1100::"
Last prefix
Last prefix for delegation in the PD pool, e.g. "2001:db8:FF00::"
Prefix length
Length of the prefixes in the PD pool, e.g. "56" or "60"
Preferred lifetime:
Here you specify the time in seconds that the client should treat this prefix as "preferred". After this time elapses, a client classifies this address as "deprecated".
Validity period
Here you specify the time in seconds that the client should treat this prefix as "valid".
Note: If you use a prefix from a WAN interface for dynamic address formation, the values Preferred lifetime and Valid lifetime are unavailable. In this case, the device automatically determines the values that apply to the prefix delegated by the provider.
Receive prefix from
You can use this parameter to assign prefixes from the prefix assigned by the provider to other routers in the network (prefix delegation). Select the desired WAN interface here. Example:
  • Assigned provider prefix: 2001:db8:abcd:aa::/56
  • Receive prefix from: INTERNET
  • First prefix: 0:0:0:0010::
  • Last prefix: 0:0:0:00F0::
  • Prefix length 60
In this example, the router uses the provider's dynamically-provided prefix "2001:db8:abcd:aa::/56" to delegate prefixes with the length "/60" from "2001:db8:abcd:aa10::" to "2001:db8:abcd:aaf0::".

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