IPv6 prefix delegation /64 subnet example

Here is an IPv6 prefix delegation /64 subnet example that demonstrates how a device subnets delegated prefixes into /64 networks and assigns global IPv6 addresses to interfaces.

IPv6 prefix delegation /64 subnet configuration

This example shows the Firewall Threat Defense receiving an IP address on the outside interface using the DHCPv6 address client. It also gets a delegated prefix using the DHCPv6 Prefix Delegation client. The Firewall Threat Defense subnets the delegated prefix into /64 networks and assigns global IPv6 addresses to its inside interfaces dynamically using the delegated prefix plus a manually configured subnet (::0, ::1, or ::2) and IPv6 address (0:0:0:1) per interface. SLAAC clients connected to those inside interfaces obtain IPv6 addresses on each /64 subnet.

The diagram illustrates an example of IPv6 prefix delegation using a /64 subnet, showing the allocation of subnets to various devices within a network. It highlights the hierarchical structure of address assignment and the relationship between the delegated prefix and the individual subnets.