ICMP protocol is used to check whether the system is alive or for debugging. You can send PING packages to the target system by using PING tool.
Ping is a ICMP package that uses internet protocol (IP) and generally measures package delivery-receiving rate between two system. With PING, echo request package is sent to the target system and return of ICMP echo reply package waits from the system.
It serves two main purposes: checking whether the system is accessible and measuring how long does it take to receive a response. At the same time, it is used for debugging.
Some average PING response time and meanings are as follows:
< 30 ms - excellent ping
Between 30 and 200 ms - average ping
Between 200 and 400 ms - somewhat slow ping time
Between 400 ms and 500 ms - slow ping
> 500 ms - bad ping
With this online ping service, you can check the connection and delay between the two systems.
Sometimes firewalls or routers might be configured to block ICMP requests and responses. In this case, even though the system is live and working, ping request is not replied.
All you need to do is to type your domain name and IP address to the form on top of the page to use our online and free ping tool.
Additionally, you can use ping_sweep module of “Metasploit Framework” software.
Or you can use the ping command as follows: ping securityforeveryone.com, if you receive a reply package, you will have a result like this:
ping -c 4 securityforeveryone.com PING securityforeveryone.com (127.0.0.1) 56(84) bytes of data. 64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.026 ms 64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.036 ms 64 bytes from localhost (127.0.0.1): icmp_seq=3 ttl=64 time=0.047 ms 64 bytes from localhost (127.0.0.1): icmp_seq=4 ttl=64 time=0.035 ms --- securityforeveryone.com ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3079ms rtt min/avg/max/mdev = 0.026/0.036/0.047/0.007 ms
If you want to block ICMP requests and replied, you can do this with the firewall of your operating system.