I have IP address and username/password for it.

Firstly, i tried open-vpn, but there is so much documentation i just simply removed it. Too complicated. I couldn't even found the config file and then simple connect.

Now I tried vpnc. This looks simplier, nice
But I need to input this:
IPSec gateway the.address.or.ip.of.server
IPSec ID group.name.given.to.you.by.administrator
IPSec secret group.password.given.to.you.by.administrator
Xauth username your.username.given.to.you.by.administrator
I don't know where to get this
IPSec ID group.name.given.to.you.by.administrator

Any help please?