Tags: Routing

MPLS Explained

Multi-protocol label switching is a way to insure reliable connections for real-time applications, but it's expensive, leading enterprises to consider SD-WAN as a way to limit its use. The thing about MPLS is that it’s a technique, not a service — so it can deliver anything from IP VPNs to metro...
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Learn how to use the Quagga suite of routing protocols to manage dynamic routing.

Dynamic Linux Routing with Quagga

So far in this series, we have learned the intricacies of IPv4 addressing in Linux LAN Routing for Beginners: Part 1 and how to create static routes manually in Linux LAN Routing for Beginners: Part 2. Now we're going to use Quagga to manage dynamic routing for us, just set it and forget it. Quagga...
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In this tutorial, we show how to manually configure LAN routers.

Linux LAN Routing for Beginners: Part 2

Last week we reviewed IPv4 addressing and using the network admin's indispensible ipcalc tool: Now we're going to make some nice LAN routers. VirtualBox and KVM are wonderful for testing routing, and the examples in this article are all performed in KVM. If you prefer to use physical hardware, then...
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Egyptian scribe
Old file-copying tools like SCP, SSH, and Rsync are all IPv6-ready, but they have syntax quirks you need to know to make them work.

Remote Sessions Over IPv6 with SSH, SCP, and Rsync

Our familiar old file-copying friends SSH, SCP, and Rsync are all IPv6-ready, which is the good news. The bad news is they have syntax quirks which you must learn to make them work. Before we get into the details, though, you might want to review the previous installments in our meandering IPv6...
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If you want your computers to talk to each other then you must know about routing; we're here to help clear the way.

Practical Networking for Linux Admins: IPv6 Routing

Our story so far: We have learned the important bits about TCP/IP, IPv6, and IPv4 and IPv6 LAN Addressing, which is all very excellent. But, if you want your computers to talk to each other, then you must know about routing. Simple Test Lab Now we have a good use for the ip command. ip assigns...
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Hijacking Bitcoin: Routing Attacks on Cryptocurrencies

Hijacking Bitcoin: routing attacks on cryptocurrencies Apostolaki et al., IEEE Security and Privacy 2017 The Bitcoin network has more than 6,000 nodes, responsible for up to 300,000 daily transactions and 16 million bitcoins valued at roughly $17B. Given the amount of money at stake, Bitcoin is an...
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The SCION Internet Architecture

The Internet has been successful beyond even the most optimistic expectations. It permeates almost every aspect of our society and economy worldwide. This success has created universal dependence on communication, as many of the processes underpinning modern society would grind to a halt if it were...
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Linux Foundation Tackles Real-Time Data Analysis with SNAS.io Initiative

The Linux Foundation is looking to boost access to real-time analytics with the adoption of the former Open Border Gateway Monitoring Protocol (OpenBMP) platform into the open source community under the new SNAS.io (Streaming Network Analytics System) initiative. The program is set to provide a...
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A Primer on OVN

OVN is a virtual networking platform developed by the fine folks over at openvswitch.org. The project has been in the works for nearly two years now and is starting to mature to the point of being production ready. In this posting I’ll walk through the basics of configuring a simple layer-2 overlay...
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Facebook promises release of own 'modular routing platform'

Facebook has promised to open source a “modular routing platform” it says powers many of its own networks. “Open/R” was developed to power Facebook's Terragraph WiFi networks. Now The Social Network says the more it played with the code, the more it became apparent it was fit for general purpose...
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