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SonicOS Enhanced 4.0 Administrator Guide
CHAPTER 12
Chapter 12: Using SonicWALL Packet Capture

System > Packet Capture

This chapter contains the following sections:
• “Packet Capture Overview” on page 105
• “Using Packet Capture” on page 107
• “Verifying Packet Capture Activity” on page 120
• “Related Information” on page 122

Packet Capture Overview

This section provides an introduction to the SonicWALL SonicOS Enhanced packet capture
feature. This section contains the following subsections:
• “What is Packet Capture?” on page 105
• “Benefits” on page 106
• “How Does Packet Capture Work?” on page 106
What is Packet Capture?
Packet capture is a mechanism that allows you to capture and examine the contents of
individual data packets that traverse your SonicWALL firewall appliance. The captured packets
contain both data and addressing information. The captured addressing information from the
packet header includes the following:
• Interface identification
• MAC addresses
• Ethernet type
• Internet Protocol (IP) type
• Source and destination IP addresses
• Port numbers
• L2TP payload details