how connect to my vpn ipsec

hi I use opensuse 13 and I would like to connect at my vpn ipsec. normally I use a closed source vpn client for connect at this vpn from windows machine, but in opensuse how can connect to it?
I hope you can help me!
thank you

sudo zypper in NetworkManager-vpnc , then you can creat cisco ipsec vpn in NetworkManager. Also you can use the vpnc command in shell to connect vpn.