I found a (i think) misspelling error
i update from 1.2.0-rolling+201804130337 to 1.2.0-rolling+201804180337
the older version the dns forwarding interface show:
set service dns forwarding listen-on 'eth1'
On new version:
set service dns forwarding 'listen-on'
I try to delete this value and set it again, but not working it say that the variable is the ‘listen-on’
Of course in this version DNS service not working on clients so i rollback to the working image.
It is possible (i not check it) that able to rewrite the config “by hand”, but it is not a optimal way.