That means we did not receive any ICMP reply for any ICMP request. Let’s ping some ip address which is not accessible. What happens if IP address is not reqachable: Let’s look into the Identification field inside IPv4. Now let’s see ICMP request and ICMP reply side by side in a picture. Now for the same packet select ICMP part in Wireshark. Also IP layer mentioned the protocol as ICMP. Now select ICMP request packet in Wireshark and look into IPv4 layer.Īs this is ICMP request packet so we can see source IP as my system IP address and destination IP as Google’s one IP address. While debugging a particular problem, sometimes you may have to analyze the protocol traffic going out and coming into your machine. 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.

Display filterThe display filter is applied by Wireshark, and its match criteria are similar to those of the. The master list of display filter protocol fields can be found in the display filter reference. The basics and the syntax of the display filters are described in the Users Guide. Note: We have to put filter ‘icmp’ as we are interested only in ICMP packets. Wireshark uses display filters for general packet filtering while viewing and for its ColoringRules. 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.

Use of additional columns: I added some 802.11 related columns to the default setup including Signal Strength, Data Rate, Channel Used and. Follow this link to do it on yours: Metageek Eye P.A. Instead we can do ping to ip address also. Use of colours: I added the Metageek Eye P.A. That means ICMP request packets = ICMP reply packets. Here is the snapshot for successful ping to Google. Ping Make sure you have internet connection or ping will be failedJ. This is short for source, which I’m confident you already figured out.

Wireshark display filter inecrment