Cisco VPN in Ubuntu 10.10

Since I upgraded to ubuntu 10.10, my Cisco VPN stopped working. I needed to find a way to convert .pcf file so that I could work with vpnc.

1. Install vpnc.
sudo apt-get install vpnc

# Get the cisco decrypt program

wget http://www.debuntu.org/files/cisco-decrypt.c

# Get the dependencies needed for it

sudo apt-get install libgcrypt11-dev

# Compile it into a binary

gcc -Wall -o cisco-decrypt cisco-decrypt.c $(libgcrypt-config –libs –cflags)

chmod +x cisco-decrypt

# Move it to a place in our path

sudo cp cisco-decrypt /usr/bin

2. Download the pcf2vpnc perl script.
wget http://svn.unix-ag.uni-kl.de/vpnc/trunk/
or, wget http://svn.unix-ag.uni-kl.de/vpnc/trunk/pcf2vpnc
or, wherever you can find it!


3. Make the script executable.
chmod +x pcf2vpnc
sudo cp pcf2vpnc /usr/bin


4. Convert your .pcf files to work with vpnc.

# Run the converter, which will call the decrypt program

./pcf2vpnc cisco.pcf > cisco.conf

5. Copy your new .conf files to /etc/vpnc.
sudo cp cisco.conf /etc/vpnc/

6. Connect using vpnc.
sudo vpnc-connect cisco

Then I got this error:
vpnc-connect: Error binding to source port. Try '--local-port 0'
Failed to bind to 0.0.0.0:500: Address already in use.

So, I tried:
sudo vpnc-connect cicso --local-port 0

And, it worked.


7. To disconnect your vpn tunnel.
sudo vpnc-disconnect