Linux – install cisco VPN client on linux

I installed VPNC instead through the synaptic package manager. It was able to import the .pcf file for the cisco VPN. It was then able to connect properly.

it Works!

#!/bin/bash
# Version 1.0 - Stable
# --------------------------------------------
# Amazon EC2 instance + VPC + RHEL 6.4 64-bit
# eth0: 10.0.0.108  public ip: 8.8.8.8
# eth1: 10.0.0.27   public ip: 9.9.9.9
# 
# VPN Sever: 2.2.2.2
#

amazonEth0="10.0.0.8"
amazonWan0="8.8.8.8"
vpnServer="2.2.2.2"
hosttoHost=(10.109.0.20/32 10.109.0.21/32 10.109.58.6/32 10.109.59.3/32)
pingHost=(10.109.0.20 10.109.0.21 10.109.58.6 10.109.59.3)

# Step 0
yum -y install openswan

cat > /etc/ipsec.d/secret.secrets << EOF
# Step 1
$vpnServer 0.0.0.0 %any: PSK "123"
EOF

cat > /etc/ipsec.conf << \EOF
# Step 2
version 2.0 # conforms to second version of ipsec.conf specification
config setup
    plutodebug="all"
        plutostderrlog=/var/log/pluto.log
    protostack=netkey
    nat_traversal=no
    virtual_private=
    oe=off
include /etc/ipsec.d/*.conf
EOF

for i in 1 2 3 4
do
cat > /etc/ipsec.d/test$i.conf << EOF
#Step 3
conn test$i
    #auto=start
    type=tunnel
    authby=secret
    pfs=no
    aggrmode=no
    ikelifetime=28800s
    lifetime=3600s
    ike=aes128-md5;modp1024!
    phase2alg=aes128-md5;modp1024
    forceencaps=yes
    left=$amazonEth0
    leftid=$amazonWan0
    leftsourceip=$amazonWan0
    right=$vpnServer
    rightsubnet=${hosttoHost[$i-1]}
EOF
done

### Run me
cat > /tmp/vpn.sh << EOF
#!/bin/bash
service ipsec restart
ipsec auto --add test1
ipsec auto --add test2
ipsec auto --add test3
ipsec auto --add test4

ipsec auto --up test1
ipsec auto --up test2
ipsec auto --up test3
ipsec auto --up test4

ipsec auto --status
ip xfrm policy
ip route show
ping -c 1 ${pingHost[0]}; 
ping -c 1 ${pingHost[1]};
ping -c 1 ${pingHost[2]}; 
ping -c 1 ${pingHost[3]}; 

EOF
chmod +x /tmp/vpn.sh

# Finishing - touch
/tmp/vpn.sh