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Posts in 2018

  • AS112 and BIRD

    Tuesday, March 06, 2018 in BGP

    AS112 provides an anycasted reverse DNS sink hole for the private addresses set aside in RFC1918 and RFC6890. Using BIRD to inject an AS112 instance into your own system is quick, easy, and painless! This is nearly identical to using exabgp, except …

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  • AS112 and Exabgp

    Tuesday, February 13, 2018 in BGP

    AS112 provides an anycasted reverse DNS sink hole for the private addresses set aside in RFC1918 and RFC6890. Using exabgp to inject an AS112 instance into your own system is quick, easy, and painless! Requirements BGP: your own autonomous system, …

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Posts in 2017

  • Studying Canadian BGP

    Saturday, May 13, 2017 in BGP

    Over the past four or so years I’ve been researching BGP routing in Canada. My first interest in studying Canadian BGP came as a result of studying historical BGP hijacks. I talk about this during my BSidesWpg 2013 talk: The practical …

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  • BGP BLACKHOLE Community

    Sunday, January 01, 2017 in BGP

    DDoS attacks continue to be a wide-spread problem on the internet. Their size has grown over the past few years to where BGP Blackholing to reduce collateral damage has become widespread. As more and more networks built support for BGP Blackholing …

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Posts in 2016

  • Large BGP Communities

    Sunday, September 04, 2016 in BGP

    One of the things I noticed when I received a 32-bit ASN was that I was unable to use my ASN in my BGP communities. I’m not the only one who has noticed this, and work has begun on a Draft Standard, Large BGP Community to address this …

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  • A BGP Slash Command

    Friday, July 15, 2016 in BGP

    If you’re using Slack then you should already know how easy it is to integrate almost anything into slack using its web APIs. If you’re not already using Slack, what are you waiting for? As a Slack user and a network administrator I often …

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  • AS395089

    Wednesday, April 13, 2016 in BGP

    Yesterday morning the company I own, Hextet Systems, was assigned AS 395089 from ARIN’s pool of ASNs. By mid-afternoon I had turned up BGP with my first uptream for IPv6, and was advertising a /44. By 11PM I had finished setting up IPv4 BGP as …

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  • IXP Peering Lan Hijacks

    Tuesday, March 29, 2016 in BGP

    Earlier this month the local Internet Exchange I’m involved with received some reports of spam coming from the MBIX Peering LAN IP space. Normally an Internet Exchange’s Peering LAN IP space is not announced to the world via BGP. Only …

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  • BGP and Game Performance

    Friday, February 19, 2016 in BGP

    The makers of League of Legends, Riot Games, have posted a very interesting engineering blog about how they’ve engineered their AS for optimal game performance. They mention important things like, buying from a Tier 1 doesn’t solve all …

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  • Filtering with BGP Communities

    Friday, February 12, 2016 in BGP

    Otherwise known as Filtering BGP Advertisements Using BGP Communities For Fun and Profit but that made the layout terrible. Filtering BGP advertisements using communities is a simple and effective way to control your advertisements. This can prevent …

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