Comments on: How To connect to a Cisco VPN using Mac OS X 10.6

By: Sharninder

Sharninder — Fri, 20 Apr 2012 15:42:51 +0000

Well, to tell you the truth, I feel Cisco isn’t really interested in the legacy VPN client anymore. The new method is the Cisco Anywhere client and they want everyone to move to that. This is just my opinion, though.

By: Kai

Kai — Tue, 17 Apr 2012 21:21:18 +0000

The current version of the Cisco VPN Client does not appear to run properly if Mac OS is running the 64-bit kernel. Users will see the error “Error 51: Unable to communicate with the VPN subsystem” when starting the VPN

By: El.Duderin0

El.Duderin0 — Mon, 06 Feb 2012 00:47:14 +0000

I have Snow Leopard 10.6, VPN Cisco did not work, kept receiving error 51 every time I tried to start it and online solutions didn’t help until I used the native VPN (Cisco IPSec) in OSX 10.6. I followed these instructions to a T, worked beautifully… for a time. Now, while I am on a functional wireless network, the VPN no longer works for beans, always says that a configuration error occurred despite fellow students using the same network, but using Cisco VPN on the exact same authentication having no problems. It seems like a specific error of the native VPN, but I can’t be too sure.

By: aditya

aditya — Wed, 02 Nov 2011 11:45:43 +0000

It worked for me. Thanks for very clear instructions and the URL to decode group password.

By: Levent

Levent — Sat, 22 Oct 2011 10:07:01 +0000

i have the same problem. Everything seems ok. But i can not connect to server folders. Any solutions?

By: Bob

Bob — Wed, 14 Sep 2011 18:25:21 +0000

Same sort of issue here. I am able to connect to our VPN (and the connection timer in the menu bar increments). However, I can’t seem to access any of our internal websites (which I was able to access when using VPNClient on OSX).

Any ideas why I can’t seem to access internal URLs? Does it have anything to do with tunneling settings in the PCF file:
EnableNat=1
TunnelingMode=1
TcpTunnelingPort=10000

By: Djulian Mazzardo

Djulian Mazzardo — Tue, 13 Sep 2011 14:12:43 +0000

Thx, this post help me so much…

By: J-M

J-M — Thu, 25 Aug 2011 10:21:58 +0000

I managed to connect to the VPN network (status is connected and the clock is running), but I can’t seem my server folders. In finder the ‘network’ is empty…
What am I doing wrong? Our system administrator doesn’t know mac…

Thanks for the help!

By: Doug

Doug — Tue, 23 Aug 2011 14:53:51 +0000

Just a note that this does not appear to work with a Cisco VPN 3000 concentrator.
We get the following msg;

Client-reported firewall does not match configured firewall: terminating tunnel.
Received — Vendor: (0), Product (0), Caps: 0000.
Expected — Vendor: Cisco Systems(1), Product: Cisco Integrated Client(0×00000001), Caps: 0002

Looks like an ASA or PIX has to be in place,.

By: alberto

alberto — Sun, 10 Jul 2011 09:49:53 +0000

After upgrading to Mac OS X 10.6.7 I spent a lot of time trying to use Cisco VPNClient I used before. I tried also to use the Mac OS built in client, but I was not able to config it correctly. In particular I did not know how to use the encripted password of my .pcf file. After reading this web page all the problems disappeared.
Thank you so much Sharninder !