Unable to connect using vpnc but Window user can do it.

Hello,
I am using vpnc on Fedora to get into a VPN however I am facing problems with the parameters that need to be supplied.


Enter IPSec gateway address: This address is known
Enter IPSec ID for : I do not know what goes here
Enter IPSec secret for : I do not know what goes here
Enter username I know what goes here
Enter password for - I 0know what goes here

and hence I get an error.

However another person can connect into the VPN when they use Windows without having to supply the values for
Enter IPSec ID for : I do not know what goes here
Enter IPSec secret for : I do not know what goes here

Does this mean that these values are residing somewhere on a file on the Windows machine. Can someone let me know where that file will be and how to retrieve those values?

For Fedora: Do I need to install or copy some file from the window machine here?

Is there an alternative to the vpnc command to get into the VPN which will just ask me for the username and password. Right now security is not so important. Getting into the network via VPN is most important.

Awaiting your reply/suggestion. Will appreciate it very much.