Configuring DHCPv6 High Availability begins by assigning two DHCPv6 deployment roles to the same DHCPv6 range.
Attention: If you configure a DHCPv6 Raw option on a DHCPv6 range, the
DHCPv6 Raw option is only deployed on the Primary server in DHCPv6 High
Availability. To ensure that the DHCPv6 Raw option is also configured on the
Secondary server, you must configure a second DHCPv6 Raw option on the DHCPv6 range
and deploy the option to the Secondary server.
To configure DHCPv6 High Availability: