VPN troubles

I’m having some strange issue with a VPN connection. It’s a vpnc connection. When I enable the connection via the GNOME Control Center or just via the shell (I suppose both execute the same commands), it says it’s connected, but I’m unable to actually connect to any site. However, when I open up a terminal and use the ‘vpnc’ command, enter all the details, I can connect to all sites without any troubles, including the VPN’s internal webpages. Does the GNOME Control Center do anything different to the vpnc command and/or how can I debug this?

Can you see the vpnc command running via ‘ps auxf’ in both cases to
compare how it was called?

Which version of OpenSUSE? Which version of vpnc (‘rpm -qi vpnc’)?


Good luck.

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From terminal:

root     17607  0.0  0.1 204024  6224 ?        Ssl  11:21   0:00 /usr/lib/nm-dispatcher
root     17728  0.0  0.0  37632  2248 ?        Ss   11:21   0:00 vpnc

From GNOME Control Center:

nathan   18009 11.8  2.0 984068 80736 tty2     Sl+  11:23   0:01 gnome-control-center --overview
root     18019  0.0  0.1 132124  5376 ?        Sl   11:23   0:00 /usr/lib/nm-vpnc-service
root     18024  1.4  0.1  37844  4740 ?        SL   11:23   0:00  \_ /usr/sbin/vpnc --no-detach --pid-file /var/run/NetworkManager/nm-vpnc-172b59e3-f810-4110-b4ce-094eb0f
root     18135  0.0  0.1 204024  6264 ?        Ssl  11:23   0:00 /usr/lib/nm-dispatcher

rpm -qi vpnc output:

Name        : vpnc
Version     : 0.5.3r550
Release     : 2.2
Architecture: x86_64
Install Date: wo 23 sep 2015 20:41:43 CEST
Group       : Productivity/Networking/Security
Size        : 236777
License     : GPL-2.0+
Signature   : RSA/SHA256, vr 11 sep 2015 11:18:31 CEST, Key ID b88b2fd43dbdc284
Source RPM  : vpnc-0.5.3r550-2.2.src.rpm
Build Date  : vr 11 sep 2015 11:18:19 CEST
Build Host  : cloud119
Relocations : (not relocatable)
Packager    : http://bugs.opensuse.org
Vendor      : openSUSE
URL         : http://svn.unix-ag.uni-kl.de/vpnc/branches/vpnc-nortel
Summary     : A Client for Cisco VPN concentrator
Description :
A VPN client compatible with Cisco's EasyVPN equipment.

Cisco 3000, IOS routers, PIX/ASA Zecurity Appliances, and
Juniper/Netscreen as well as Nortel Contivity (experimental).

Supported Authentications: Pre-Shared-Key + XAUTH, Pre-Shared-Key
Supported IKE DH-Groups: dh1 dh2 dh5 Supported Hash Algo (IKE/IPSEC):
md5 sha1 Supported Encryptions (IKE/IPSEC): (null) (1des) 3des aes128
aes192 aes256 Perfect Forward Secrecy: nopfs dh1 dh2 dh5

It runs entirely in userspace and uses the TUN/TAP driver for access.
Distribution: openSUSE Leap 42.1