Ping works by sending ICMP "echo request" (ping) packets to the target host and listening for ICMP "echo response" (pong) replies. The packet contains 64 bytes, 56 data bytes, and 8 bytes of protocol reader information. A small packet will be sent to the given IPv4 address. The Ping tool uses the Internet Control Message Protocol (ICMP) Echo function detailed in RFC792. It also measures round trip time and reports errors. Ping works by sending a packet to a provided address and waiting for the reply. Ping (Packet InterNet Groper) is a computer network administration utility that helps one to check whether a particular IP address or domain is accessible on the computer network or not. We use two standard programs, Ping and Traceroute online, to diagnose obstructions, network failures, or technical errors. But sometimes, due to some hurdles, like network congestion, the webserver being down, or some other technical error, there are chances that the message will not reach the destination. All packets are re-assembled to form the original message. Once all the packets of the original message reach the destination. Each packet is transmitted individually and may adopt a different route to reach its destination. In a computer network, the data is sent in small blocks called packets. They are short in number, and the maximum available to be ever assigned to devices is 4,294,967,296. The IPv4 was the first kind of IP created in networking. The IPv4 addresses are 32-bits long and use DNS A records to map the hostname to an IP address. IPv4 (Internet Protocol Version 4) is the most widely used form of an IP address. Just put an IPv4 address to ping it online. Ping utility helps to check if the destination IP is assigned to some device and responding respectively. $iaddr = inet_aton("$ip") or die "Cannot resolve hostname $ip\n"
My ($ip,$port,$size,$time) = ($iaddr,$endtime,$psize,$pport) Print " size=0: use random size between \n"
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