Import the key
[root@ambush ~]# rpm --import http://ftp.riken.jp/Linux/fedora/epel/RPM-GPG-KEY-EPEL-6
Download the Epel package and install it
[root@ambush ~]# wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
[root@ambush ~]# rpm -ivh epel-release-6-8.noarch.rpm
Preparing... ########################################### [100%]
1:epel-release ########################################### [100%]
[root@ambush ~]#
Now you can install packages from the EPEL
repository.