I assume this will work on RedHat 6 too:

# yum install http://people.redhat.com/twoerner/BZ/477115/ipset-6.7-2.el6.x86_64.rpm http://people.redhat.com/twoerner/BZ/477115/libmnl-1.0.1-1.el6.x86_64.rpm http://people.redhat.com/twoerner/BZ/477115/libmnl-devel-1.0.1-1.el6.x86_64.rpm

Yes, you can copy and paste.

Note that this isn't adding any repositories, so I'm not sure what impact this will have in future since the packages won't get automatically updated by `yum update` (security updates, breakage when kernel updates etc?)