On 12/10/2024 5:43 am, Jurjen Oskam wrote:
Back when using dhcpcd, hostname.em1 just contained a single line
"autoconf". dhcpcd was able to get a /128 using router solicitations,
configure that address on the external interface, and then get a
prefix to configure the other interfaces:
interface em1
ipv6rs
ia_na 1
ia_pd 2 em0/1 vlan4/2 wg0/3 vlan5/4 vlan3/5
The /128 was in a way different range than the prefix.
You would have been getting your external /128 address via ia_na, not
slaac. My ISP is configured the same way.
I was able to get things working with dhcp6leased by assigning an
address from the prefix itself the external interface, like so (note
that em1 appears both in the "on" and the "for" part):
request prefix delegation on em1 for { em1/128 em0 vlan4 wg0 vlan5 vlan3 }
This doesn't feel right though, but I'm not sure why. I don't know why
em1 doesn't get a public IPv6 address from slaacd.
dhcp6leased only does PD and not NA at this time. In my case, once I
request a PD from the ISP, I can route all traffic without issue. I can
even pin a /64 from the issued /48 (via PD) to the external interface so
that has a GUA too (I don't need the NA /128 to function, the link-local
is sufficient).
If you need the NA to function, then you'll need to continue to use
dhcpcd. In my case, it was a slight configuration change on how I do
things so I didn't need to go back to dhcpcd and have the simplicity of
dhcp6leased.
Thanks for the tool @florian, very elegant and easy to use.
Cheers,
Jason.
