[root@rwhois ~]# facter 
/usr/lib/ruby/site_ruby/1.8/facter/ipmess.rb:19: uninitialized constant Facter::IPAddress (NameError)
from /usr/lib/ruby/site_ruby/1.8/facter/util/loader.rb:72:in `load'
from /usr/lib/ruby/site_ruby/1.8/facter/util/loader.rb:72:in `load_file'
from /usr/lib/ruby/site_ruby/1.8/facter/util/loader.rb:38:in `load_all'
from /usr/lib/ruby/site_ruby/1.8/facter/util/loader.rb:33:in `each'
from /usr/lib/ruby/site_ruby/1.8/facter/util/loader.rb:33:in `load_all'
from /usr/lib/ruby/site_ruby/1.8/facter/util/loader.rb:30:in `each'
from /usr/lib/ruby/site_ruby/1.8/facter/util/loader.rb:30:in `load_all'
from /usr/lib/ruby/site_ruby/1.8/facter/util/collection.rb:90:in `load_all'
from /usr/lib/ruby/site_ruby/1.8/facter.rb:91:in `to_hash'
from /usr/bin/facter:125