# File lib/openstack/compute/server.rb, line 403
    def remove_fixed_ip(ip)
      data = JSON.generate(:removeFixedIp => {
          :address => ip
      })
      response = @compute.connection.csreq("POST",@svrmgmthost,"#{@svrmgmtpath}/servers/#{URI.encode(self.id.to_s)}/action",@svrmgmtport,@svrmgmtscheme,{'content-type' => 'application/json'},data)
      OpenStack::Exception.raise_exception(response) unless response.code.match(/^20.$/)
      true
    end