Tech Notes

Dualcomm Technology

Do you find yourself needing to access the packets on the wire, but lack the tools to accomplished the task? Then Dualcomm’s EasyTAP product family, provides  full duplex, 10/100/1000 traffic of the same network link segment simultaneously. Small in size, it is USB powered and supports Power-over-Ethernet pass-through.

SPAN out of the box a presentation at Sharkfest 2010 by John HE, Hardware Engineer, Founder | Dualcomm Technology, Inc. (view PDF)
This is a piratical view of SPAN vs TAP. that examines what has been said about the “Cons” of using a SPAN port, and how real they are, including discusses the real headaches of using a SPAN port, and introduces a “SPAN Out of the Box” solution to relief the headaches.

Visit site: Dualcomm Technology

Smokeping Reading the Graphs

General

Smokeping is a latency measurement tool. It sends test packets out to the net and measures the amount of time they need to travel from one place to the other and back.

Read more

Downloads

Check back soon for available downloads.

Wireshark

Wireshark-Ethereal Field Notes


Wireshark-Ethereal Capture Filter installation instructions

Wireshark-Ethereal Capture Filter file cfilter
This is TEXT format.Note of InterestAs of Release of Wireshark 99.6 the Capture Filter file cfilter was moved within the application to c:/programs/wireshark/cfilterThe Wireshark-Ethereal Capture Filter file cfilter should look like this:
Read more

VOIP

VoIP Field Notes

Read more

Technical Field Notes

Technical Field Notes

Reference List of Cisco, 3COM, & Intel Switches That Support Port Mirroring Common switches sorted by Port mirroring supported

Cisco Technical Support & Documentation Tools & Resources Most Requested ToolsCisco SPAN Documents

Read more

Technical Links

Technical Links


The Tech Firm
Tony Fortunato a very talented Network Analyst, where you will find helpful technical ideas.

VOIP Wiki A Reference Guide To All Things VOIP

Read more

Ports

Ports

Read more

Microsoft Field Notes

Microsoft Field Notes


Microsoft Computer Start Up Process
: a detail analysis of Microsoft client booting up. Each step is detailed with a description of every process. Each step has a quick trace file that shows each component looks like on the wire.

Read more

Linux Network Tools & Terms

Linux Network Tools and Terms

arp Address resolution protocol Type “arp -a” to display entries in the arp cache.

ifconfig A command line tool used to configure a network interface. There is a man page available for this program.

ifdown Shuts down a network interface

Read more

Page 1 of 212