Date: Sat, 27 Jul 2024 12:21:08 +0900 (JST) From: moto kawasaki <moto@kawasaki3.org> To: cross+freebsd@distal.com Cc: roy@marples.name, freebsd-net@freebsd.org Subject: Re: =?iso-8859-1?Q?=A0DHCPv6?= IA_PD - how-to Message-ID: <20240727.122108.862717899466090274.moto@kawasaki3.org> In-Reply-To: <050440F8-B3D8-4B2C-85BD-D5C09C303037@distal.com> References: <CA0C0E7D-4956-4DB4-A274-D74C84A18529@distal.com> <190e09e6c1a.11450232913849.654798645277119294@marples.name> <050440F8-B3D8-4B2C-85BD-D5C09C303037@distal.com>
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Hi Chris, all
I am struggling the same problem too, and here is my working
configuration for dhcp6c in my test environment.
Hope this can be help.
vtnet0 is uplink, where I expect to receive RA from ISP.
If upstream router send RA with PD with 2001:db8:beef::/56, dhcp6c
will add sla-len (8 in this configuration) to the prefix length (/56)
to get the final prefix length of /64.
Also, dhcp6c will add sla-id (11 and 12, decimal) to prefix, so that
I will use 2001:db8:beef:b/64 and 2001:db8:beef:c/64 for assigning my
internal network interfaces (vtnet1 and vtnet2).
Well, I am wondering how I can tell "authentication isp_auth" entry to
use the "isp_key", especially when I have multiple "keyinfo" entries.
===== /usr/local/etc/dhcp6c.conf =====
keyinfo isp_key {
realm "example.org";
keyid 1;
secret "JTY0XXXXXXXXXXXXXXX=="; # masked.
};
authentication isp_auth {
protocol delayed;
};
interface vtnet0 {
script "/usr/local/etc/dhcp6c-script.sh";
send ia-pd 3;
send authentication isp_auth;
request domain-name-servers;
request domain-name;
request ntp-servers;
#send rapid-commit;
};
id-assoc pd 3 {
prefix-interface vtnet1 {
sla-id 11;
sla-len 8;
};
prefix-interface vtnet2 {
sla-id 12;
sla-len 8;
};
};
=====
Thanks and Best Regards,
--
moto kawasaki <moto@kawasaki3.org> +81-90-2464-8454
on Wed, 24 Jul 2024 00:04:12 -0400, Chris Ross <cross+freebsd@distal.com> wrote:
>
>
> > On Jul 23, 2024, at 13:23, Roy Marples <roy@marples.name> wrote:
> > ---- On Tue, 23 Jul 2024 18:11:18 +0100 cross+freebsd@distal.com wrote ----
> >
> >
> >> tl;dr; anyone have a good IPv6 network setup based on an IA_PD from
> >> their provider? Any details or advice to share?
> >
> >
> > I'm upstream for dhcpcd.
> > All options related to PD are configurable in the dhcpcd.conf(5) configuration file. There are also some examples.
>
> My apologies, I think I may’ve misremembered which attempt produced which
> result. More careful investigation suggests it was actually dhclient I
> was unable to configure in a config file. So, I’m not sure I ever even
> got the PD recognized by dhcpcd. Perhaps I was not finding the right
> examples.
>
> > What are you struggling with specifically?
>
> First, I’d like to request of my ISP the PD and understand the answer.
> If dhcpcd can also set up internal networks within the PD, that would
> be ideal. Again, I found with earlier work that some clients are able
> to do more with “using” the network than others. I have half a dozen
> ish internal networks that I assign /64’s to, and distribute via RA.
>
> Perhaps an answer to Karl’s question might provide me with what I need
> as well. Otherwise, an example or three of receiving and utilizing an
> IA_PD response is what I am looking for.
>
> - Chris
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