About the Test Ping Tool
Ping is a network troubleshooting tool that displays the response time between two Internet (or IP) addresses. Ping tools are installed by default in most operating systems. It does not matter if you are using Solaris, Windows, FreeBSD or Ubuntu Linux; ping is ubiquitous. A ping uses ICMP packets, known as ICMP request and ICMP reply.
No response from Ping
Firewalls and routers can be configured to block ICMP request and response so you will sometimes find a system does not respond to ping even though the system is up and running. Network Firewalls, such as commercial Cisco and Checkpoint products can do this as can local firewalls such as your local Windows Firewall or a local Linux firewall using IP Tables.
What methods are used to determine the response?Ubuntu Linux Tool
The default ping tool that comes with Ubuntu Linux is used, and the results are parsed and displayed in the table.
Number of ICMP Packets
Five packets are sent from our server in Newark (USA), and our system will then determine how long it takes to get a response from your selected Target IP address.
Is this dangerous?
Ping is a very common tool that is used everywhere, there is nothing dangerous about an ICMP packet; so you are free to try and ping different systems to determine if they are running and how far away they are from our system. Note that it is possible to use ICMP for a denial of service attack; however this requires sending many more packets than the 5 that the tool here does.
Response Time Graph
Basic color coding is performed on the response time with Green being a fast response (less than 100ms), yellow being mid range (100-300ms) and Red a bit slow (300ms+). These response times will vary considerably depending on the geographic location of the target address. It usually takes a few hundred milliseconds to get to the other side of the world for example.