A small piece
of the Internet.
An independent network built out of curiosity. BGP, peering, and Internet infrastructure—with notes from running the real thing.
Things I build.
Things I break. What I learn.
AS215855, two years later
I got my ASN in March 2024. More than two years later, I have changed routers, built monitoring tools, automated path switching, and given myself plenty of things to maintain.
as215855 / bgp / ipv6 / homelabRouterOS, the XB8, and the upgrade that knocked me offline
A RouterOS 7.23 upgrade killed my Comcast connection. Turns out it wasn't DHCP at all -- it was an IPv6 Router Advertisement change that made the XB8 think my router was trying to take over the segment.
bgp / homelab / mikrotik / as215855 / routeros / xb8 / comcastLagbuster, RouterOS edition: same brain, no BIRD
I swapped the BIRD box at the core of my network for a MikroTik. Lagbuster only knew how to drive BIRD, so I taught it RouterOS and kept the same latency failover.
bgp / networking / go / homelab / mikrotik / routeros / automationBecause eight hours
of networking isn’t enough.
Network engineer by day.
Still a network engineer after hours.
I’m Tomas. AS215855 is my independent network: a place to work with Internet routing beyond the confines of a lab.
It’s where I connect routers, explore IPv6, work on routing policy, and find out what happens when theory meets an actual network. Sometimes things break. That’s part of the point.
Small in scale. Real routes, real infrastructure, and always something left to improve.
A place in the routing table.
2a0e:97c0:e60::/44IPv62602:f9ba:a10::/48IPv6Address resources, not a live announcement list.
For current visibility, AS paths and RPKI state, use the public routing tools below.
Don’t take my word for it.
Look at the routes.
Let’s talk networks.
Routing questions, a shared project, or just comparing notes.