BGP.guru

BGP.guru

Nerd blog.

02 Feb 2017

HA Recursive DNS with dnsdist and exabgp

I've wanted to use exabgp along with dnsdist to provide anycasted, highly available recursive DNS servers ever since discovering dnsdist.
02 Feb 2017

fpinglog

I've often wished for a way of logging pings when troubleshooting connectivity problems. Today I revisited the problem using fping.
19 Jan 2017

MikroTik, VRRP, and IPv6

I recently setup IPv6 first-hop redundancy in my colocated environment using MikroTik and VRRP. It didn't work the same way I'd come to expect from using it in IPv4 environments and I set out to figure out why.
01 Jan 2017

BGP BLACKHOLE Community

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.
04 Sep 2016

Large BGP Communities

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 shortcoming.