Subscriber Services: DHCPv6 prefix exclude option

You can exclude one specific prefix that is bigger than the prefix length from a delegated prefix set while using DHCPv6 based prefix delegation. This specific prefix is used as the link between the delegating router and the requesting router, where the delegating router exchanges DHCPv6 messages with the requesting router. Configure the exclude-prefix-len statement at the [edit access address-assignment pool delegated-address-pool family inet6 dhcp-attributes] hierarchy level to exclude the prefix from the delegated prefix set. You can configure the support-option-pd-exclude statement at either the [edit system services dhcp-local-server dhcpv6 reconfigure] or the [edit system services dhcp-local-server dhcpv6 group group-name reconfigure] hierarchy level to exclude prefix support in the reconfigure message.