What are these messages and what can I do about them?
These are DHCP requests coming from a Management Interface. If you have your Management Interface configured with an IPv4 IP address, but the interface is looking for an IPv6 DHCP address. If you are not currently using IPv6 on your network or do not wish to manage the appliance with an IPv6 address you can disable the requests. In order to do this go to the localhost.localdomain drop down on the right side of the GUI then click on Management Network. Under the IPv6 Settings box choose Disable under mode. This will disable the outgoing IPv6 DHCP requests from the appliance.