Networking useful stuff

Site dedicated mainly to internetworking. The goal is to share experiences, teach IP, IPv6. Talk about Linux, IP services, servers, promote IPv6 adoption, routing protocols, security and in some cases just some thoughts. Keywords: linux, cisco, ospf, bgp, eigrp, ip, ipv6, sla, link, routers, routings, telco, telecommunications, security, ipv4

Monday, August 10, 2020

My review about coin.space (in summary, not recommended)

Hello there, I know many of you are looking for good BTC wallets, good cryptocurrency fees and so on. Unfortunately I can not tell you...

Friday, September 6, 2019

The sad tale of the ISP that didn’t deploy IPv6

Once upon a time in the not so distant past, a large ISP dominated a country’s telecommunications market and felt powerful and without comp...

Monday, July 8, 2019

BGP: To filter or not to filter by prefix size. That is the question

Introduction In order to write these post the R+D team and the WARP team joint together after analyzing some security incidents related ...

Friday, July 13, 2018

How to run Flask framework to listen in both IPv4 and IPv6 (DualStack)

Issue: How to run Flask framework to listen in both IPv4 and IPv6 (DualStack) Answer: app.run(host='::',port=5005)

Thursday, August 24, 2017

Google DNS --- Figuring out which DNS Cluster you are using

(this is -almost- a copy / paste of an email sent by Erik Sundberg to nanog mailing list on August 23). This post is being posted with ...

Monday, August 21, 2017

My humble results. Testing ping to loopback using v4 and v6

Hello there, Regarding RTT v4 vs v6 I did something "interesting" recently, would like to know your thoughs. If you pi...

Wednesday, March 30, 2016

Joke-image: When you ask an engineer. MAC - IP Address

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