Comment 6 for bug 1783377

I would add

https://wiki.strongswan.org/issues/3615

- Local workaround with a script triggered in `pre-up` stage to restart service
- Explanation of upstream workaround (see previous comment/commit) that uses a dummy TUN device

---
Also the workaround we use at the moment (choose from this one or the script from [strongswan#3615](https://wiki.strongswan.org/issues/3615)) :
use `network-manager` (static) instead of `systemd-resolved`

     sudo systemctl disable systemd-resolved.service
     sudo systemctl stop systemd-resolved

Put `dns=default` in the `[main]` section of your `/etc/NetworkManager/NetworkManager.conf`:

    [main]
    dns=default

Delete the symlink /etc/resolv.conf

    rm /etc/resolv.conf

Restart network-manager

    sudo service network-manager restart