BGP updates in 2025
Geoff Huston explores changes to the stability of the routing system in 2025.
Tag: IPv4
BGP in 2025
Geoff Huston’s annual analysis of BGP routing table growth for 2025 and some projections.
An interview with the creators of ipv4.games
ipv4.games gamifies the IPv4 address space. We asked the creators of the game why they made it and how it works.
The IPv4 address swamp: The new normal
Guest Post: Has IPv4 allocation improved in the 21st century, or are prefixes becoming smaller and more fragmented? What are the potential impacts on Internet security?
Hot takes on 13 talks from NANOG 95
Geoff Huston attended NANOG 95, and shares his take on the presentations that caught his attention.
Where the evolution of the Internet may be heading
The Internet is not a centrally planned global enterprise. We’ve transitioned from an era of network scarcity to an era of abundance. Where is this all heading?
Is IP fragmentation still considered vulnerable?
Guest Post: IPID has a 25+ year history of abuse as a network side channel. This post categorizes IPID exploits, and makes a surprising recommendation about mitigating them.
Gotta catch ‘em all! IPv4 Turf War
IPv4 Turf War is a simple game about claiming blocks of IP addresses, with potential measurement applications.
Ossification and the Internet
Why IP, transport, routing, and DNS protocols can harden and what that means for the future of the public network.
IP addresses through 2024
What IPv4 and IPv6 addressing in 2024 tells us about the changing nature of the network.