[ih] Source routing

[Carsten Bormann]

On 2025-02-03, at 00:48, Craig Partridge via Internet-history <internet-history at elists.isoc.org> wrote:
> 
> And IP has source routing -- both strict source routing and loose source
> routing options.  Strict source routing was infeasible, I believe, by the
> early 1990s because there were too many hops in the typical path to fit
> into the available IP option space.

And loose source routing became infeasible quickly as it provided return routability to packets with spoofed source addresses (creating a big hole for people that used IP addresses as authenticators), so people switched it off at as many places as possible.

Did anyone do a writeup that summarizes the major events in the 1990s that killed IP source routing?

Grüße, Carsten