Number of ICMP reply: From capture we can see there are 4 ICMP reply packets. Number of ICMP request: From capture we can see there are 4 ICMP request packets. Note: We have to put filter ‘icmp’ as we are interested only in ICMP packets.

Here is the ICMP request and reply packets for Google ping. Let’s check what happens in Wireshark when we ping to Google or 192.168.1.1. Step5: Stop Wireshark and put “ICMP” as filter in Wireshark. Instead we can do ping to ip address also. That means ICMP request packets = ICMP reply packets. Here is the snapshot for successful ping to Google.

To see all the details open up the details in the packet details pane, or, if using TShark, add the -V flag to get verbose output.Ping Make sure you have internet connection or ping will be failedJ. You're capturing these packets and they're dissected right there. Note: I think you'll see the proper ordering is UDP packet first, and in response you'll see the ICMP packetĪs for the question on what you should do to read the contents of the packets, you're already doing that. Otherwise the network stack at the destination node wants to inform you that the destination is unreachable, because the (UDP) port is unreachable (or rather, it's closed).

This succeeds iff there's a proces at the destination node which has opened that UDP port. This packet is used to transport a datagram over IP to the destination node at a specific UDP port. When sending out ICMP echo packets you get a reply, so that's good. One The use of ping shows you that basic IP networking between the nodes is possible. These two observations are only partly related.

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