Setup DHCPv6 and/or Router Advertisements

To assign IPv6 addresses to clients automatically, setup Router Advertisements and/or DHCPv6.

A brief overview is as follows:

• Navigate to Services > DHCPv6 Server/RA
• Check Enable
• Enter a range of IPv6 IP addresses inside the new LAN IPv6 subnet
• Click Save.
• Switch to the Router Advertisements tab
• Set the Mode to Managed (DHCPv6 only) or Assisted (DHCPv6+SLAAC)
• Click Save.

To assign IPv6 addresses to LAN systems manually, use the firewall’s LAN IPv6 address as the gateway with a proper matching prefix length, and pick addresses from within the LAN subnet.