Many universities or other institutions require the cisco vpn client for WLAN access. This may be a problem if you use the (at time of writing) new ubuntu feisty fawn distribution. The client is not compiled correctly because in the kernel headers a "config.h" is required which is not longer in the kernel headers.
Here a solution is presented which I found in the web and which worked for me quite well.
When you are working with the kernel version 2.6.19 and above you might get the following error while compiling the vpn client:
There exists a patch for the vpn client (click here for the original blog entry) which requires the following steps:
1. Untar the VPN Client bash:~$ tar xzf vpnclient-linux-<something>.tar.gz 2. Download the patch bash:~$ wget -q http://tuxx-home.at/projects/cisco-vpnclient/vpnclient-linux-2.6.19+-rev1.diff or, alternatively: Switch to this download section and fetch it manually. 3. Change to the vpnclient diretory bash:~$ cd vpnclient 4. Apply the patch bash:~/vpnclient$ patch <../vpnclient-linux-2.6.19+-rev1.diff patching file IPSecDrvOS_linux.c patching file frag.c patching file interceptor.c patching file linuxcniapi.c Now the patch has been applied and you can safely install the client bash:~/vpnclient$ ./vpn_install
That did the work for me.
It might be the case that you can't set up a connection. The vpnclient exits with the following error:
Initializing the VPN connection. Secure VPN Connection terminated locally by the Client Reason: Failed to establish a VPN connection. There are no new notifications at this time.
Solution: When you type in your console
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