On 5/8/22 05:00, Kenneth Porter wrote:
I'm trying to figure out how to assign a "static" address that
automatically sets the prefix to what the ISP delegates. It seemed like
the token system would accomplish that, but reading the kernel source
code, I've discovered that tokens only work with a /64 delegation. My
ISP offers a /60, so the token is ignored and I get a random address,
instead.
Is there some way to use prefix delegation to pick a /64 from the /60
and loop it back onto the same interface to make it use the token? Or is
this /64 restriction actually a kernel bug?
So right now, you're assigning a /60 address to your LAN interface? If
so, you almost certainly shouldn't do that. Instead, you should (as you
say) pick a /64 from within the delegated /60 and use that subnet. (The
other /64 subnets within the /60 can be used for other VLANs.)
The details of doing this are going to be dependent on what software
you're using to manage the network - NetworkManager, ISC DHCP client,
etc.
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