Monthly Archives: June 2013

Can I See Some ID Please?

I had an interesting issue yesterday where I had to prove that a firewall was injecting TCP RST packets to drop active connections. The details of the firewall problem aren’t relevant, but in order to tie several packet traces together and prove beyond doubt that the mysterious RST packets were being injected and not coming from the end host I had to turn to a little-remembered field in the IP packet header — the identification field.

Continue reading

Tagged ,

Cisco Live Tips

Photo May 01, 9 41 54 AM

By counting the number of crazy, jingling, battery-powered hats in the corner of my office, I have scientifically deduced that this year will be the 6th time I’ve attended Cisco Live (starting way back when it was officially still Cisco Networkers). Over the years, I’ve picked up a few tips on what to do, and what not to do, to make the trip valuable, educational, and enjoyable. In no particular order, here they are:

Continue reading

Tagged ,
@greatwhitetec

Virtualization, Storage, and other techy stuff

The Stupid Engineer

I ask those questions you're too clever to.

Sunay Tripathi's Blog

Pluribus Networks Founder's Blog on OS, Networking, Virtualization, Cloud Computing, Solaris Architecture, etc

Ed Koehler's Blog

Just another WordPress.com weblog

JGS.io

Data networking, stray thoughts, nerdy fun...

Network Heresy

Tales of the network reformation

The Borg Queen

Jottings on the intersection of tech and humanness

Networking From The Trenches

Ramblings about my thoughts, experiences, and ideas.

In Search of Tech

Looking for the next big thing.

Packet Maniac

A day in the life of a maniac packet

Fryguy's Blog

A Network Blog by a Network Engineer

Networking 40,000

Attaining my CCIE with the help of Warhammer 40k

stubby router

just another networking blog

Ronnie Angello

Network Architect . CCIE 17846 . CCDE 2012::1

The Peering Introvert

The sundry interests of Ethan Banks including books, cars, hiking in New Hampshire, religion, music, home theater, technology, geek culture, and social media. And maybe cats.