Hi,
I've stumbled over this problem since unbound <-> nsd interaction is
broken for me on current [in rdomains with exception of rdomain 0]. The
problem persists since at least October 23rd and maximally since
somewhere after October 9th.
The following test seems to reproduce it independently of unbound and nsd:
# pfctl -d [ensure that PF is out of the loop]
# ifconfig lo1 rdomain 1 127.0.0.1 netmask 255.0.0.0 up
# nc -V1 -l 5678
from another shell:
# nc -V1 127.0.0.1 5678 - doesn't work anymore.
The same still works in rdomain 0 (i.e., nc -V0).
Best regards
Andreas