I managed to get Hurricane Electric running very nicely and under 5 minutes, though!
Before you actually add the slave zones on the HE control panel, you’ll need to actually delegate them on your box and on your registry (or registrar).
In my case, I will need to delegate all four of the servers presented (the Internet standards recommend between 2 and 7 servers answering) before I can add the zone.
So in your box you would put:
ns1.he.net ns2.he.net ns3.he.net ns4.he.net ns5.he.net xfr:216.218.133.2 xfr:2001:470:600::2
(You can actually delegate ALL FIVE of them)
Then add those to your registrar (example for Namecheap)
Only then, you create the zone on HE:
