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Packet Pushers Weekly Logo

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A nerdy deep dive into networking technology with 20+ year veterans Greg Ferro & Ethan Banks, plus world-class guests.

News & analysis.

Network Break Logo

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Weekly news & discussion about IT infrastructure with Drew Conry-Murray & Greg Ferro. Guests include embittered industry analysts.

Not just networking.

Packet Pushers Datanauts Logo

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Chris Wahl & Ethan Banks build data centers, bust silos, and deliver applications with help from special guest talent.

Nerdy & niche.

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Greg Ferro & Ethan Banks welcome you to networking's curiosity shop. On this shelf, find an odd bit we just couldn't throw away. On that, an interesting vendor product. And back there, conference coverage.

All the things.

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Go ahead. Drink from the firehose.

FlexVPN configuration

In this post we’ll have a look at the process of configuring a FlexVPN network (unofficially known as DMVPN phase 4). I’ll show what components are involved in configuration and how they all tie together. For most patient readers there’s a bonus at the end of this post.

IETF Yokohama: Days 4 & 5

Funny enough, much of the food you will find in Yokohama is Chinese, rather than Japanese — another odd fact you probably didn’t need to know. I’m going to cover day 4 and 5 here, as I’m leaving tomorrow morning to head back to the “real world.” Wednesday is a “slow day” in terms of […]

ONUG Fall 2015 Live Blog – Ethan Banks

I’ll be live blogging from ONUG for this fall 2015 session. I’m in Manhattan already, looking forward to the event that starts on Wednesday. Refresh this page periodically to see the latest updates as I glean technical data from the presentations in real-time.

IETF Yokohama: Day 3

Interesting observation about Japan of the day: when you press the elevator call button, the light over the elevator that will be coming next lights up. When the elevator comes, the light flashes as the doors open. Minor thing, I know, but I’m easily amused. Today I went to the SPRING, or source packet routing […]

TCP Port Numbers for Contemporary Applications

A list of default TCP port numbers for contemporary applications such as Docker, Elastic, OpenStack and Puppet. Why? Whenever I’m trying to identify an application by port number, the usual online sources are often still giving me details on AltaVista Web Server and the like. In the oh so hip and cutting edge DevOps environments I live […]

IETF Yokohama: Day 2

Note to readers: I’m currently at the IETF in Yokohama; each day I’m going to try to post something about the days events y’all might find interesting. I don’t know why, but the faucet knobs in my hotel room seem to rotate backwards. I’m forever turning the water off when I mean to turn it […]