hm, getting this same iptables error on a completely new trellis/trellis-cli 1.10.1, vagrant 2.3.4, python 3.9.6 install on Mac OS 13.2.1.
I tried using @kellymears tip requiring ansible 2.10.7 and removing later versions of ansible, and I’m still seeing the same iptables error on trellis up.
Not sure where to go next…