Wednesday, February 12, 2025

The History behind Netmasks.

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Introduction Do you remember when you were learning about netmasks? You probably thought that they were useless, that you wouldn’t need them...
Thursday, August 22, 2024

A Practical Improvement in DNS Transport over UDP over IPv6

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By Hugo Salgado and Alejandro Acosta Introduction and problem statement In this document we want to discuss an existing IETF draft (a workin...
Sunday, June 9, 2024

Cisco hidden command: bgp bestpath as-path multipath-relax

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Hidden command   bgp bestpath as-path multipath-relax What for is this? By default, Cisco does not do load-balance or distribute traffic bet...
Friday, June 7, 2024

Video: IPv6 LAC Race - May 2014 - Jun 2024

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Do you want to know how the evolution of IPv6 has been in LAC? In this video of just a minute you will have your answer #barchartrace #ipv6
Sunday, June 2, 2024

Solved: "The following security updates require Ubuntu Pro with 'esm-apps' enabled"

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Situation   When you want to do some operations in Ubuntu using apt/do-release-upgrade you receive the message: "The following security...
Monday, April 29, 2024

Solved: Error: eth0 interface name is not allowed for R2 node when network mode is not set to none in containerlab

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 Problem:    Containerlab returns a similar error: Error: eth0 interface name is not allowed for R2 node when network mode is not set to non...
Friday, March 8, 2024

BGP Stream: An Analysis of One Year of BGP Incidents

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04/03/2024 By  Alejandro Acosta , R&D Coordinator at LACNIC LACNIC presents  the first webpage  designed to show incidents and an analys...