This page offers two services to check an Internet connection:
Ping sends four ICMP (Internet Control Message Protocol) requests with the default size of 64 bytes to the destination (IP address or host name) specified in the Ping Target text-field. The response times are logged, and the round trip time (the time, the packet needs from being sent until being received again) is measured. The minimum and maximum round trip time and its average as well as the percentage of lost and of received frames results are displayed in the lower area of the page. If Use ICMP checkbox is selected, an ICMP request will be send to the ping destination (MS Windows standard). Otherwise, if checkbox is not selected, a UDP request will be send (Linux standard).
Traceroute checks the Internet connection by controling the routers (hops) that are passed to reach the destination specified in the text-field Traceroute Target. For that purpose several IP packets are sent out. In the header of each of them, the TTL (Time To Live) value increases from 1 to 30. So, the first IP frame reaches the first router and with the answer of that router its IP address is known. The second frame delivers the IP address of the second router and so on. The results of Traceroute are displayed on the lower area of the page.
Attention: No Traceroute is allowed if the Firewall is enabled on the level High Security .
In the field below these, the output of the Ping or Traceroute procedure is printed.