This appears to be a test environment issue. I was unable to reproduce on my laptop, in Debian sid, in an eoan to focal upgrade and a bionic to focal upgrade. iptables.postinst looks fine too. I'll reopen if I have something more concrete.
** Changed in: iptables (Ubuntu) Status: In Progress => Invalid ** Changed in: iptables (Ubuntu) Assignee: Jamie Strandboge (jdstrand) => (unassigned) ** Changed in: iptables (Ubuntu) Importance: Medium => Undecided -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1865531 Title: ip6tables alternate is not setup correctly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/iptables/+bug/1865531/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs