[Dnsmasq-discuss] ipv6 slaac or stateless - No address or no address range available

[Eric Fahlgren]

On Mon, Feb 27, 2023 at 8:15 AM Simon Kelley <simon at thekelleys.org.uk>
wrote:

>
> On 25/02/2023 16:19, Daniel via Dnsmasq-discuss wrote:
> > dhcp-option=tag:computer6,option6:3,fd99:1234:beef:cafe::2
> > dhcp-option=tag:computer6,option6:6,fd99:1234:beef:cafe::1
> > dhcp-option=tag:computer6,option6:ntp-server,fd99:1234:beef:cafe::2
>
> ...This all got a bit superseded
> when the IETF started defining options on the RA packets for the common
> configuration options.
>

Sort of on-topic, but sort of tangential, how will dnsmasq interpret the
above three settings?

https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml

Does 'option6:3' translate this from DHCPv4's 'router' to an RA, or does it
consider it to be DHCPv6 'OPTION_IA_NA'?  Does the 'option6:6' (OPTION_ORO)
use DHCPv4 dns-server semantics, or does it interpret it as DHCPv6 23,
OPTION_DNS_SERVERs, or maybe even translate it to an RA RDNSS message???

I can see how with 'option6:ntp-server' using the logical name it would use
DHCPv6 56,  OPTION_NTP_SERVER, but with the numerical 'option6:' values
does it "do the right thing", or are those two option settings basically
nonsense?

Eric
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