Install VPNC and Network-manager-vpnc on OEL 6

1. Download the latest epel-release rpm from

   http://download.fedora.redhat.com/pub/epel/6/x86_64/

2. Install epel-release rpm:

   # rpm -Uvh epel-release*rpm

3. Install vpnc and NetworkManager-vpnc rpm package:

   # yum install vpnc

   # yum install NetworkManager-vpnc