If distribution of the DHCPv6 server is to be stateful, this table defines an address pool:
- Address-Pool-Name
- Name of the address pool
- First address
- First address in the pool, e.g. "2001:db8::1"
- Last address
- Last address in the pool, e.g. "2001:db8::9"
- Preferred lifetime:
- Here you specify the time in seconds that the client should treat this address 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 address as "valid".
Note: If you use a prefix from a WAN interface for dynamic address formation, you cannot configure values for Preferred lifetime and Valid lifetime. In this case, the device automatically determines the values that apply to the prefix delegated by the provider.
- Receive prefix from
- With this parameter you can assign addresses to the network clients from the prefix that the router retrieved from the WAN interface via DHCPv6 prefix delegation. Select the desired WAN interface here. For example, if the provider assigned the prefix "2001:db8::/64", you can then set the parameter First address to the value "::1" in the Last address to "::9". In combination with the prefix "2001:db8::/64" as delegated by the provider, the clients receive addresses from the pool "2001:db8::1" to "2001:db8::9". If the provider prefix is greater than "/64", e.g.,"/48" or "/56", you must take subnetting for the logical network into account in the address.
Example:
- Assigned provider prefix: 2001:db8:abcd:aa::/56
- /64 as the prefix of the logical network (subnet ID 1): 2001:db8:abcd:aa01::/64
- First address: 0:0:0:0001::1
- Last address: 0:0:0:0001::9
Important: You should only use this mechanism if the provider assigns a fixed prefix. Otherwise, it is possible that the provider delegates a new prefix to the router, but the client still has an address from the pool with the old prefix.
