Network Manager: The Plugin Does Not Support Import Capability

Distribution

Linux Mint 21.1 Cinnamon

Package version

5.6.8

Graphics hardware in use

NVIDIA GeForce RTX 2070

Frequency

Always

Bug description

When trying to import a .opvn file in Network Manager, it consistently errors out with the message 'The Plugin Does Not Support Import Capability'.

I do not remember this ever happening on LM 20.

Using 'openvpn --config filename.opvn' from the terminal works perfectly with the same file.

Steps to reproduce

• Open Network Manager and try to import a .opvn file
• Error appears
• No VPN connection can be created

Expected behavior

• Open Network Manager and try to import a .opvn file
• Add the relevant credentials when prompted
• VPN connection is created

Additional information

I created a thread on the LM forum in January: https://forums.linuxmint.com/viewtopic.php?p=2329176

Yesterday another poster pointed out that commenting out a specific line in the .opvn file lets Network Manager work as expected:

# route 0.0.0.0 0.0.0.0 vpn_gateway

.opvn file attached for reference.

cdg-001.ovpn.zip

Start by reproducing the import failure in Network Manager with the attached cdg-001.ovpn file and compare it with the working command-line invocation. Investigate the effect of the route 0.0.0.0 0.0.0.0 vpn_gateway line; done means the configuration imports and creates a VPN connection without requiring that line to be removed.