I'm unsure of the solution though. Are we supposed to SSH into the router and remove the entries from that file? or are we supposed to rename them to show up in NutOS?
Yes you are right. If you want your old entries then just rename it or remove those entries and add new entries through NutOS or you can use Openwrt
Network>LAN Settings page.
FYI- When you renaming your old static leases, if you have multiple entries please increase the host name like 'host1' 'host2' ...'host9' see the example.
cat etc/config/dhcp to view the file
vi etc/config/dhcp to edit the file
example :-
config 'host' chanage to => config 'host'
'host1' option 'name' 'tem3openwrt' option 'name' 'tem3openwrt'
option 'mac' '00:xx:45:xx:ed:ac' option 'mac' '00:xx:45:xx:ed:ac'
option 'ip' '10.10.10.99' option 'ip' '10.10.10.99'
config 'host' change to => config 'host'
'host2' option 'name' 'tem4openwrt' option 'name' 'tem4openwrt'
option 'mac' '11:xx:13:ae:d5:xx' option 'mac' '11:xx:13:ae:d5:xx'
option 'ip' '10.10.10.101' option 'ip' '10.10.10.101'
Then restart the dhcp server using following command.
luci-reload dhcp