Once upon a time, Kenneth Porter <shiva@xxxxxxxxxxxxxxx> said:
> Right now it's a CentOS 8 system running NetworkManager. The LAN
> side is going to run the Kea DHCP server but for now I'm just trying
> to get the WAN side going.
The typical IPv6 CPU router setup is:
- WAN receives Router Advertisement that says there is stateful config
- WAN does DHCPv6 to get WAN IP (typically either a /64 or a /128)
- WAN does sepearate DHCPv6 to get a prefix delegation (e.g. /64, /60, /56)
- router assigns /64 prefixes from PD to LAN interface(s) as needed
So when you get a /60 via PD, that doesn't go on the WAN interface at
all, that's for use on LAN interfaces.
NM can get an apply a WAN IP in that setup just by setting
ipv6.method=auto. There's some support in NM for also running PD and
assigning prefixes to LAN interfaces (although not sure it is in CentOS
8), but I think it's incomplete. Instead, you can use something like:
https://github.com/sshambar/nmutils
to add event scripts to NM to handle it (although IIRC I had a couple of
issues with those scripts too, but didn't get back to working it all
out).
--
Chris Adams <linux@xxxxxxxxxxx>
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