[root@lin1 vpnclient]# cp -p Makefile Makefile.back
*******************************************
[root@lin1 vpnclient]# vi Makefile
########
replace
CFLAGS += -mcmodel=kernel -mno-red-zone
with
EXTRA_CFLAGS += -mcmodel=kernel -mno-red-zone
#######
********************************************
[root@lin1 vpnclient]# wget lamnk.com/vpnclient-linux-2.6.24-final.diff
–2008-09-11 22:28:52– http://lamnk.com/vpnclient-linux-2.6.24-final.diff
Resolving lamnk.com… 69.73.155.56
Connecting to lamnk.com|69.73.155.56|:80… connected.
HTTP request sent, awaiting response… 200 OK
Length: 3989 (3.9K) [text/plain]
Saving to: `vpnclient-linux-2.6.24-final.diff’

100%[======================================>] 3,989 –.-K/s in 0.04s

2008-09-11 22:28:52 (95.4 KB/s) - `vpnclient-linux-2.6.24-final.diff’ saved [3989/3989]

[root@lin1 vpnclient]# wget lamnk.com/cisco_skbuff_offset.patch
–2008-09-11 22:28:58– http://lamnk.com/cisco_skbuff_offset.patch
Resolving lamnk.com… 69.73.155.56
Connecting to lamnk.com|69.73.155.56|:80… connected.
HTTP request sent, awaiting response… 200 OK
Length: 4586 (4.5K) [text/plain]
Saving to: `cisco_skbuff_offset.patch’

100%[======================================>] 4,586 –.-K/s in 0.04s

2008-09-11 22:28:58 (107 KB/s) - `cisco_skbuff_offset.patch’ saved [4586/4586]

[root@lin1 vpnclient]# patch < ./vpnclient-linux-2.6.24-final.diff
patching file GenDefs.h
patching file interceptor.c
[root@lin1 vpnclient]# patch < ./cisco_skbuff_offset.patch
(Stripping trailing CRs from patch.)
patching file frag.c
(Stripping trailing CRs from patch.)
patching file interceptor.c
Hunk #1 succeeded at 646 (offset 16 lines).
Hunk #3 succeeded at 807 (offset 16 lines).
(Stripping trailing CRs from patch.)
patching file linuxcniapi.c
(Stripping trailing CRs from patch.)
patching file linuxkernelapi.c
[root@lin1 vpnclient]# ./vpn_install
Cisco Systems VPN Client Version 4.8.01 (0640) Linux Installer
Copyright (C) 1998-2006 Cisco Systems, Inc. All Rights Reserved.

By installing this product you agree that you have read the
license.txt file (The VPN Client license) and will comply with
its terms.

Directory where binaries will be installed [/usr/local/bin]

Automatically start the VPN service at boot time [yes]

In order to build the VPN kernel module, you must have the
kernel headers for the version of the kernel you are running.

Directory containing linux kernel source code [/lib/modules/2.6.25.4-30.fc9.x86_64/build]

* Binaries will be installed in “/usr/local/bin”.
* Modules will be installed in “/lib/modules/2.6.25.4-30.fc9.x86_64/CiscoVPN”.
* The VPN service will be started AUTOMATICALLY at boot time.
* Kernel source from “/lib/modules/2.6.25.4-30.fc9.x86_64/build” will be used to build the module.

Is the above correct [y]

Making module
make -C /lib/modules/2.6.25.4-30.fc9.x86_64/build SUBDIRS=/root/Desktop/vpnclient/vpnclient/vpnclient modules
make[1]: Entering directory `/usr/src/kernels/2.6.25.4-30.fc9.x86_64′
CC [M] /root/Desktop/vpnclient/vpnclient/vpnclient/linuxcniapi.o
CC [M] /root/Desktop/vpnclient/vpnclient/vpnclient/frag.o
CC [M] /root/Desktop/vpnclient/vpnclient/vpnclient/IPSecDrvOS_linux.o
CC [M] /root/Desktop/vpnclient/vpnclient/vpnclient/interceptor.o
CC [M] /root/Desktop/vpnclient/vpnclient/vpnclient/linuxkernelapi.o
LD [M] /root/Desktop/vpnclient/vpnclient/vpnclient/cisco_ipsec.o
Building modules, stage 2.
MODPOST 1 modules
WARNING: could not find /root/Desktop/vpnclient/vpnclient/vpnclient/.libdriver64.so.cmd for /root/Desktop/vpnclient/vpnclient/vpnclient/libdriver64.so
CC /root/Desktop/vpnclient/vpnclient/vpnclient/cisco_ipsec.mod.o
LD [M] /root/Desktop/vpnclient/vpnclient/vpnclient/cisco_ipsec.ko
make[1]: Leaving directory `/usr/src/kernels/2.6.25.4-30.fc9.x86_64′
Copying module to directory “/lib/modules/2.6.25.4-30.fc9.x86_64/CiscoVPN”.
Already have group ‘bin’

Creating start/stop script “/etc/init.d/vpnclient_init”.
/etc/init.d/vpnclient_init
Enabling start/stop script for run level 3,4 and 5.

Installing license.txt (VPN Client license) in “/opt/cisco-vpnclient/”:
/opt/cisco-vpnclient/license.txt

Installing bundled user profiles in “/etc/opt/cisco-vpnclient/Profiles/”:
* Replaced Profiles: sample

Copying binaries to directory “/opt/cisco-vpnclient/bin”.
Adding symlinks to “/usr/local/bin”.
/opt/cisco-vpnclient/bin/vpnclient
/opt/cisco-vpnclient/bin/cisco_cert_mgr
/opt/cisco-vpnclient/bin/ipseclog
Copying setuid binaries to directory “/opt/cisco-vpnclient/bin”.
/opt/cisco-vpnclient/bin/cvpnd
Copying libraries to directory “/opt/cisco-vpnclient/lib”.
/opt/cisco-vpnclient/lib/libvpnapi.so
Copying header files to directory “/opt/cisco-vpnclient/include”.
/opt/cisco-vpnclient/include/vpnapi.h

Setting permissions.
/opt/cisco-vpnclient/bin/cvpnd (setuid root)
/opt/cisco-vpnclient (group bin readable)
/etc/opt/cisco-vpnclient (permissions not changed)
* You may wish to change these permissions to restrict access to root.
* You must run “/etc/init.d/vpnclient_init start” before using the client.
* This script will be run AUTOMATICALLY every time you reboot your computer.
[root@lin1 vpnclient]# /etc/init.d/vpnclient_init start
Starting /opt/cisco-vpnclient/bin/vpnclient: Done

http://ubuntuforums.org/showthread.php?p=5725544&posted=1#post5725544

sudo vpnclient connect LinuxUsers
Cisco Systems VPN Client Version 4.8.01 (0640)
Copyright (C) 1998-2007 Cisco Systems, Inc. All Rights Reserved.
Client Type(s): Linux
Running on: Linux 2.6.24-16-generic #1 SMP Thu Apr 10 12:47:45 UTC 2008 x86_64
Config file directory: /etc/opt/cisco-vpnclient

Initializing the VPN connection.
Secure VPN Connection terminated locally by the Client
Reason: Failed to establish a VPN connection.
There are no new notification messages at this time.

Do you have any idea of what I am doing wrong?
Thank you!