First, `stop network-addresses-X` should clean up the addresses without deleting the interfaces. And only `stop tap0-netdev` should fully delete the interfaces.
Signed-off-by: Egor Savkin <es@m-labs.hk>
this commit also does a tiny bit more, namely:
- removing unnecessary ping's to the hosts own ip
- and simplifying a few pieces of code like changing `{ inherit (pkgs) lib pkgs; };` to `{ inherit lib pkgs; };`
