Quick way check of network connectivity using Ping (ICMP)

In TCP/IP networks, you can use the ICMP protocol () to verify network connectivity using the "ping" feature. A ping is an ICMP network packet that can be used to check if a destination hostname or IP address exists on the network. It's an easy way verify network connectivity.

Ping sends ICMP Echo Request messages to a remote host and waits for replies. If replies are received, it confirms that the host is reachable and responding. Here are two examples:

ping server01
ping 192.168.0.1

A successful response looks like this:

Reply from 192.168.0.1: bytes=32 time<10ms TTL=128

If the host is not reachable, you may see:

Request timed out.

By default, ping sends four requests. You can change this with the -n parameter:

ping -n 10 server01

This command sends ten ICMP Echo Request packets instead of four.

Ping is very handy for quick checks when troubleshooting name resolution or basic network connectivity.