# File lib/fog/terremark/vcloud.rb, line 84
        def default_public_ip_id
          if default_vdc_id
            @default_public_ip_id ||= begin
              ips = get_public_ips(default_vdc_id).body['PublicIpAddresses']
              if ips.length == 1
                ips.first['href'].split('/').last.to_i
              else
                nil
              end
            end
          else
            nil
          end
        end