# File lib/facter/util/ip.rb, line 290
  def self.get_arp_value(interface)
    arp = Facter::Util::Resolution.exec("arp -en -i #{interface} | sed -e 1d")
    if arp =~ /^\S+\s+\w+\s+(\S+)\s+\w\s+\S+$/
     return $1
    end
  end