Supported Platforms
Preventing Binding of Clients That Do Not Support Reconfigure Messages
The DHCPv6 client and server negotiate the use of reconfigure messages. When the client can accept reconfigure messages from the server, then the client includes the Reconfigure Accept option in both solicit and request messages sent to the server.
By default, the DHCPv6 server accepts solicit messages from clients regardless of whether they support reconfiguration. You can specify that the server require clients to accept reconfigure messages. In this case, the DHCPv6 server includes the Reconfigure Accept option in both advertise and reply messages when reconfiguration is configured for the client interface. Solicit messages from nonsupporting clients are discarded and the clients are not allowed to bind.
(Optional) To configure the DHCPv6 local server to require that all clients accept reconfiguration:
- Specify strict reconfiguration.[edit system services dhcp-local-server dhcpv6 reconfigure]user@host# set strict
To override the global configuration for a particular group of clients, include the statement at the [edit system services dhcp-local-server dhcpv6 group group-name reconfigure] hierarchy level.
The show dhcpv6 server statistics command displays a count of solicit messages that the server has discarded.
