Since I don’t yet own a Festool router, my Porter-Cable 890 Plunge Router showed the most promise of containing the mess. Dust and chips were drawn into the port built into the base (located behind the depth stop turret) and up through the column. My only shop vacuum/dust extractor was a Festool CT26 and I had a D27 (27mm diameter) hose attached to it so I set out to make the two work together. (I also had a high-volume dust collector that is used with my stationary machinery.)
The Festool D27 hose stretched a little to fit over the very top of the column but it was far from secure and could very easily come free.
I found a plastic pipe fitting that fit inside the D27 hose nicely and turned a round tenon to fit inside the router’s column. I chamfered the bottom inside edge to allow the chips and dust to pass through easily.
The adapter press-fits into the top of the column.
The D27 hose fit nicely over the adapter.
For the most secure fit, I pressed the hose end all the way down onto the top of the router’s column.
Since the Porter-Cable didn’t use the Plug-It system, I used the same Velcro straps that held the Plug-It cord to the D27 hose to hold the cord back and out of the way.
Sculptural Woodwork by Chris Wong 
PC makes a fitting that does just this and costs 4 bucks.
https://www.ereplacementparts.com/vacuum-adapter-p-71533.html