install VPN client in rhel 6

vampiresharif · 02-19-2014, 02:15 PM

HI,

I was trying to install vpn client in rhel 6 , at the very first time it was showing
Directory containing linux kernel source code [] as blank
I tried with

"yum install kernel-devel Kernel-headers"

now the directory is showing but while installing it is showing the following error

[root@oc4314450723 vpnclient]# ./vpn_install
Cisco Systems VPN Client Version 4.8.02 (0030) 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/2.6.32-358.11.1.el6.x86_64/build]

* Binaries will be installed in "/usr/local/bin".
* Modules will be installed in "/lib/modules/2.6.32-358.11.1.el6.x86_64/CiscoVPN".
* The VPN service will be started AUTOMATICALLY at boot time.
* Kernel source from "/lib/modules/2.6.32-358.11.1.el6.x86_64/build" will be used to build the module.

Is the above correct [y]y

Making module
make -C /lib/modules/2.6.32-358.11.1.el6.x86_64/build SUBDIRS=/home/******/Downloads/vpnclient modules
expr: syntax error
make[1]: Entering directory `/usr/src/kernels/2.6.32-358.11.1.el6.x86_64'
/usr/src/kernels/2.6.32-358.11.1.el6.x86_64/arch/x86/Makefile:81: stack protector enabled but no compiler support
make[1]: gcc: Command not found
scripts/Makefile.build:49: *** CFLAGS was changed in "/home/******/Downloads/vpnclient/Makefile". Fix it to use EXTRA_CFLAGS. Stop.
make[1]: *** [_module_/home/i****/Downloads/vpnclient] Error 2
make[1]: Leaving directory `/usr/src/kernels/2.6.32-358.11.1.el6.x86_64'
make: *** [default] Error 2
Failed to make module "cisco_ipsec.ko".

my kernel vertion is
[root@oc4314450723 Downloads]# uname -r
2.6.32-358.11.1.el6.x86_64

kinneyd · 02-19-2014, 02:54 PM

make[1]: gcc: Command not found

Looks like you need gcc to compile the code.

John VV · 02-19-2014, 03:54 PM

redhat DOSE NOT use this location
/usr/local/bin
it uses /usr and not /usr/local

so set it to install into /usr

/usr/local is not even in the system $PATH
to see run

Code:

echo $PATH 
-- then rerun it as root-----
su -
echo $PATH

/usr/local is not there

Quote:

yum install kernel-devel Kernel-headers

is that a typo ?
for these they should all be lowercase and needs to be ran as root

Code:

su -
yum install kernel-devel

the headers are part of the -devel package
and for installing the gcc compiler and EVERYTHING it NEEDS

Code:

su -
yum groupinstall "Development Tools"

these DO have a capital first letter

but WHY ?? build something from source ?
there are a bunch of programs in RHN and the third party repos

Code:

su -
yum search vpn

NetworkManager-openvpn
NetworkManager-vpnc
openvpn
vpnc
sshuttle
openconnect
ike
---- the already installed ---
NetworkManager-gnome
and
kdenetwork
( have a vpn section )

and "vpnc" is the cisco client

vampiresharif · 02-20-2014, 08:04 AM

Hi John,

Thanks a lot for your reply

I was trying to make it , but it is showing the follwing error

* Binaries will be installed in "/usr".
* Modules will be installed in "/lib/modules/2.6.32-358.11.1.el6.x86_64/CiscoVPN".
* The VPN service will be started AUTOMATICALLY at boot time.
* Kernel source from "/lib/modules/2.6.32-358.11.1.el6.x86_64/build" will be used to build the module.

Is the above correct [y]y

Making module
make -C /lib/modules/2.6.32-358.11.1.el6.x86_64/build SUBDIRS=/home/****/Downloads/vpnclient modules
make[1]: Entering directory `/usr/src/kernels/2.6.32-358.11.1.el6.x86_64'
scripts/Makefile.build:49: *** CFLAGS was changed in "/home/****/Downloads/vpnclient/Makefile". Fix it to use EXTRA_CFLAGS. Stop.
make[1]: *** [_module_/home/******/Downloads/vpnclient] Error 2
make[1]: Leaving directory `/usr/src/kernels/2.6.32-358.11.1.el6.x86_64'
make: *** [default] Error 2
Failed to make module "cisco_ipsec.ko".

I was trying to install it as root

I chnaged the Makefile with
EXTRA_CFLAGS += -mcmodel=kernel -mno-red-zone

now there is some problem with interpreter
make[1]: Entering directory `/usr/src/kernels/2.6.32-358.11.1.el6.x86_64'
CC [M] /home/****/Downloads/vpnclient/interceptor.o
/home/****/Downloads/vpnclient/interceptor.c: In function ‘interceptor_init’:
/home/****/Downloads/vpnclient/interceptor.c:132: error: ‘struct net_device’ has no member named ‘hard_start_xmit’
/home/****/Downloads/vpnclient/interceptor.c:133: error: ‘struct net_device’ has no member named ‘get_stats’
/home/****/Downloads/vpnclient/interceptor.c:134: error: ‘struct net_device’ has no member named ‘do_ioctl’
/home/****/Downloads/vpnclient/interceptor.c: In function ‘add_netdev’:
/home/****/Downloads/vpnclient/interceptor.c:271: error: ‘struct net_device’ has no member named ‘hard_start_xmit’
/home/****/Downloads/vpnclient/interceptor.c:272: error: ‘struct net_device’ has no member named ‘hard_start_xmit’
/home/****/Downloads/vpnclient/interceptor.c: In function ‘remove_netdev’:
/home/****/Downloads/vpnclient/interceptor.c:294: error: ‘struct net_device’ has no member named ‘hard_start_xmit’
/home/****/Downloads/vpnclient/interceptor.c: In function ‘recv_ip_packet_handler’:
/home/****/Downloads/vpnclient/interceptor.c:646: warning: assignment makes integer from pointer without a cast
/home/****/Downloads/vpnclient/interceptor.c:667: warning: passing argument 2 of ‘CniNewFragment’ makes pointer from integer without a cast
/home/****/Downloads/vpnclient/Cniapi.h:383: note: expected ‘CHAR *’ but argument is of type ‘sk_buff_data_t’
/home/****/Downloads/vpnclient/interceptor.c: In function ‘do_cni_send’:
/home/****/Downloads/vpnclient/interceptor.c:785: error: invalid operands to binary - (have ‘sk_buff_data_t’ and ‘unsigned char *’)

vampiresharif · 02-20-2014, 11:00 AM

Hi,

got it fixed.

Download patch file for 64 bit

wget http://lamnk.com/download/vpnclient-...02-64bit.patch

patch < ./vpnclient-linux-4.8.02-64bit.patch

sed -i 's/^CFLAGS/EXTRA_CFLAGS/' Makefile

just for sfaety check the patch file for newer kernel and apply it:

wget http://lamnk.com/download/vpnclient-....31-final.diff

patch < ./vpnclient-linux-2.6.31-final.diff

Edit the kernel source file

sudo sed -i 's/const\ struct\ net_device_ops\ \*netdev_ops;/struct\ net_device_ops\ \*netdev_ops;/' `find /usr/src -name netdevice.h`

run the installer ...

John VV · 02-20-2014, 02:00 PM

the next question is why are you using a old and out of date version 4.8
when 5.3 IS IN THE software repos

this would have installed the current

Code:

su -
yum install vnpc