Hello Tony,

On Wednesday January 19 2022 18:18, you wrote to Richard Menedetter:

 TL> I know I can add a router behind the primary router.  The main manual
 TL> setup will be to assign a /64 to the LAN side of that router.  The
 TL> existing router will pick up the advertisements, setup routing and
 TL> optionally open the firewall for that /64 (so that filtering can be
 TL> controlled by the second router).

 TL> I haven't put that to the test yet, but tempted to give it a try
 TL> sometime, as a learning exercise. :)

I did just that a couple of years ago to test prefix delegation. I connected a second router behind my primary router and IIRC it got a /61 out of the /56 assigned to me. Of that /61, one /64 was routed to the local LAN of the second router.  I presume the process allows for cascading routers until the /56 is exhausted, but I did not explore that. I was satisfied that I demonstrated prefix delegation worked.


Cheers, Michiel

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