It turns out the fix for this issue was backported to systemd v240: https://github.com/systemd/systemd-stable/pull/37
I performed a release upgrade on one of our affected servers, bringing it up from ubuntu 18.04 to ubuntu 19.04 (which uses systemd v240), and I can confirm that the peers are being configured correctly now. So this issue affects ubuntu 18.04 LTS but not any later supported releases. 18.10 was also affected but it's EOL. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853956 Title: 34 wireguard peers result in invalid peer configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1853956/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs