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LAN Analyzer and Protocol Decoder - CommView

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Introduction
About CommView
What's New
Using the Program
Overview
Selecting Network Interface for Monitoring
Latest IP Connections
Packets
Logging
Viewing Logs
Rules
Advanced Rules
Alarms
Reconstructing TCP Sessions
Reconstructing UDP Streams
Searching Packets
Statistics and Reports
Using Aliases
Packet Generator
Visual Packet Builder
NIC Vendor Identifier
Scheduler
Using Remote Agent
Using RPCAP
Capturing Loopback Traffic
Port Reference
Setting Options
Frequently Asked Questions
VoIP Analysis
Introduction
Working with VoIP Analyzer
SIP and H.323 Sessions
RTP Streams
Registrations
Endpoints
Errors
Call Logging
Reports
Call Playback
Viewing VoIP Logs
Working with Lists in VoIP Analyzer
NVF Files
Advanced Topics
Capturing High Volume Traffic
Working with Multiple Instances
Running CommView in Invisible Mode
Command Line Parameters
Exchanging Data with Your Application
Custom Decoding
CommView Log Files Format
Sales and Support

Searching Packets

To find packets matching a specific text or address, use the Find dialog (Search => Find Packet). Enter a search string, select the type of entered information (String or Hex), and then click Find Next. The program will search for packets that match the search criterion and display them on the Packets tab.

You can enter text as a string, hexadecimal value, MAC or IP address. Text string search will be performed in ASCII and Unicode (UTF-8 and UTF-16) formats. A hex string should be used when you want to enter non-printable characters: just type in the hexadecimal string, e.g. AD0A027804. Use of IPv6 addresses requires Windows XP or higher and that the IPv6 stack be installed.

Check Match Case for case-sensitive search. Check At offset to search for a string that begins at a certain offset. Note that the offset indicator is hexadecimal and zero-based (i.e. if you're looking for the first byte in the packet, the offset value is 0). You can also select a search direction, Up or Down.