![]() The output of the sniffer command has been taken on FortiGate 2. Since port 1 receives the ICMP echo request, the reply will be sent out via the same port1. Any field within the packet detail can be applied as a filter, for example you can right click on content type field within a HTTP packet and click copy > as filter, as you can apply or prepare as filter. The matches operator makes it possible to search for text in string fields and byte sequences using a regular expression, using Perl regular expression syntax. It’s possible to capture packets using tshark (command line) by issuing tshark.exe -R display filter here. ![]() Neither one will require DNS resolution since they search on the web host. An ICMP reply is received from host 2 which is then forwarded to port 1. For a capture filter that restricts traffic to that to\from a particular host use host replacing '' with the appropriate host name for the site, the portion of the URL that is between the scheme (' or ' and the first trailing slash. Assuming it's http web traffic, try http.host contains '.com'. ![]() ![]() The ICMP echo request is received on port1 of FortiGate 2. Activity 1 - Capture Network Traffic Using a Capture Filter To capture network traffic using a capture filter: Select either the Capture menu and then the Interfaces dialog box or the List the available capture interfaces toolbar button. Initially a ping from host1 (10.200.1.10/24) to host2 (10.200.2.10/24) is performed. I need to capture the traffic from my Win7 machine where I just installed WireShark v3 to HTTPS web sites hosted at small office network with AT&T Fiber Ethernet. ![]()
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