Ubuntu: Ubuntu 10 + vpnc: no response from target


I have Ubuntu 10.04.4 version

I installed the vpnc successfully as the following link -


Example of the installation

wget http://www.unix-ag.uni-kl.de/~massar/vpnc/vpnc-0.5.3.tar.gz  tar zxf vpnc-0.5.3.tar.gz  sudo apt-get install libgcrypt11-dev libgpg-error-dev  cd vpnc-0.5.3  make  sudo make install  

so after installation and create the vpnc configuration file - /etc/vpnc/my.conf

and activate the vpnc as the following

vpnc my  Enter password for site@   vpnc: no response from target  

I get this bad error:

  no response from target  

I tries to solve the problem by adding the following lines ( one by one )

 IKE DH Group dh2   NAT Traversal Mode cisco-udp   Local Port 10000   Enable Single DES  

But this not solved the problem

Please advice what could be the problem ?

I already check the resolv.conf file and Goggled on all forums but I couldn’t find the resolution

Please help


I found the problem

First I run the traceroute command on my linux machine

As the following:


and I notice that all output are stars ,

this gives me the feeling that something like firewall might have blocked the network.

I asked the IT department to check this issue and indeed it was. They enabled the firewall.

So after getting IT department configured the firewall, I again checked the vpnc and vpnc worked correctly

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