Is possible to use DHCPv6 without SLAAC?

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Yes, it is possible to use DHCPv6 without SLAAC (Stateless Address Autoconfiguration). DHCPv6 (Dynamic Host Configuration Protocol version 6) is a protocol used for assigning IPv6 addresses, among other configuration parameters, to devices on a network. SLAAC, on the other hand, is a method for automatically configuring IPv6 addresses without the need for a central server.

In a network that uses DHCPv6, the DHCPv6 server can be configured to provide IPv6 addresses to clients without using SLAAC. This is known as stateful DHCPv6. In this case, the DHCPv6 server is the only entity responsible for assigning IPv6 addresses, and clients cannot generate their own addresses using SLAAC.

Stateful DHCPv6 can be useful in situations where you want more control over how IPv6 addresses are assigned to devices on your network. For example, you might want to assign addresses based on device type or location, or you might want to assign addresses dynamically based on available resources.

It's worth noting that while DHCPv6 can be used without SLAAC, the reverse is not true. If you want to use SLAAC, you'll still need to have a router advertising the necessary network prefixes and other configuration information.