The Techvids library gives you access to in-depth video tutorials, product demos, and troubleshooting guides to enhance your fundamental cybersecurity knowledge and get the most out of your products.

Sophos Firewall v19.5: Identify Dropped Packets

**SFOS v19.5 has reached End-of-Life. Please upgrade to a supported version.**

We show you how to identify packets dropped by Sophos Firewall. We cover the functionality of the Log Viewer, including the different filters and common messages you may encounter. Then, we demonstrate the powerful Packet Capture tool for troubleshooting and walk you through several scenarios you may encounter along with the steps to resolve them.

------

*Video Chapters*

00:00 Intro
00:10 Overview
00:45 Log Viewer
13:26 Troubleshooting Examples
17:44 Packet Capture Tool
18:15 Packet Capture Examples

------

*Relevant Documentation*

Recommended Read - How to Troubleshoot Dropped Packets:
https://community.sophos.com/sophos-xg-firewall/f/recommended-reads/138132/sophos-firewall-how-to-troubleshoot-dropped-packets

Invalid Traffic Events:
https://docs.sophos.com/nsg/sophos-firewall/19.0/Help/en-us/webhelp/onlinehelp/index.html?contextId=c_202005121105030278

Packet Capture:
https://docs.sophos.com/nsg/sophos-firewall/19.5/Help/en-us/webhelp/onlinehelp/index.html?contextId=diagnostics-packet-capture

Join our Sophos Community at https://community.sophos.com

Find more helpful videos at https://techvids.sophos.com

Embed