Networking : Using Ping and Traceroute for Network Troubleshooting
Networking : Using Ping and Traceroute for Network Troubleshooting
The ping command is used to determine whether a destination host is reachable. It does this by taking advantage of the Internet Control Message Protocol’s (ICMP) echo facility. An ICMP echo packet does exactly what it sounds like: It sends a packet out onto the network with the expectation of hearing a response. If the response comes back, then a host is reachable; if no response is received, then a problem has possibly occurred.
The traceroute (or tracert) command is used to trace the path between a source and a specific destination. It does this by using the ICMP echo facility, but in a different way. To understand this, it is important to know what the Time to Live (TTL) value of the IP header is used for. The TTL value, at its simplest, is an allowed hop counter — if the TTL is set to 2, then the traffic is only allowed to pass through two different routing devices before being dropped.
For More Details -
https://www.petri.com/ping-and-tracer...