unable to connect to VPN from ubuntu

[biagiopas]

Hi, I'm trying to connect to the company VPN from my PC with Linux ubuntu22.04, but I can't.

I was given a configuration file generated by Sophos like this

ssl_vpn_config.ovpn

Code: Select all

client
dev tun
proto tcp
verify-x509-name "C=IT, ST=xxx, L=xxx, O=xxx, OU=OU, CN=SophosApplianceCertificate_xxx, emailAddress=xxx"
route remote_host 255.255.255.255 net_gateway
resolv-retry infinite
nobind
persist-key
persist-tun
<ca CERTIFICATE>
<cert CERTIFICATE>
<key RSA PRIVATE KEY>
auth-user-pass
cipher AES-256-CBC
auth SHA512
comp-lzo yes
;can_save no
;otp no
;run_logon_script no
;auto_connect 
route-delay 4
verb 3
reneg-sec 0
remote vpnlu.xxx.it xxx

on ubuntu the file cannot be imported into the GNU graphical interface
Settings > Networks > VPN > Import from File >
error message
Unable to import VPN connection

I think the problem is this instruction whose syntax does not conform to OpenVPN
route remote_host 255.255.255.255 net_gateway

how should it be rewritten with OpenVPN syntax?
I'm not sure, but this instruction seems to mean: allow the client to connect to all IPs on the web outside the VPN intranet


if I launch the VPN connection from cli, apparently it works

Code: Select all

$ sudo openvpn --config ssl_vpn_config.ovpn

Enter Auth Username: rea.biagio
🔐 Enter Auth Password: ***
. . .
. . .
. . .
2023-11-03 13:01:34 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
2023-11-03 13:01:34 Initialization Sequence Completed

however if I want to check that I am connected to the company VPN
I open the browser and try to connect to the VPN's internal corporate URLs, but the connection times out

They also suggest me to check if the routes have been imported, but I don't understand what I should check

Thanks from now for the replies