Odhcp or odhcp6 or both?

Searched for an explanation. Do it need the odhcp AND the odhcp6 package to handle a dualstack or ds-lite access? Both packages eat resources and most work is done by the dnsmasq.

Hmmm... no answer to this basic question? Wondering myself, as in my router I find both, but don't know if the odhcp6 is redundant or not. Have a lot of activity in the log, wondering if there's excess thrashing around that doesn't need to happen.