[Dnsmasq-discuss] IPv6 host file syntax

Simon Kelley simon at thekelleys.org.uk
Tue Dec 17 21:18:40 GMT 2013


On 17/12/13 18:00, Shixiong Shang wrote:
> Hi, expert:
>
> I am using dnsmasq as DHCPv6 server and I created host file for my IPv6 DHCP range. The first field is DUID calculated by MAC, followed by hostname, and then IPv6 address.
>
> 00:03:00:06:fa:16:3e:03:63:36,host-2001-db8-3--1.openstacklocal,2001:db8:3::1
> 00:03:00:06:fa:16:3e:95:5f:6a,host-2001-db8-3--2.openstacklocal,2001:db8:3::2
> 00:03:00:06:fa:16:3e:0c:29:d6,host-2001-db8-3--f816-3eff-fe0c-29d6.openstacklocal,2001:db8:3::f816:3eff:fe0c:29d6


If you really want to use DUID, then the hex should have id: in front

id:00:03:00:06:fa:16:3e:03:63:36,......

but calculating DUIDs is dangerous and fragile. The latest dnsmasq 
releases allow you to use MAC addresses directly.

The IPv6 addresses should have [...] round them

.....,[2001:db8:3::1]

Cheers,

Simon.


>
> However, I cannot find any document to verify whether the above syntax is correct. Would you please clarify?
>
> Thanks!
>
> Shixiong
>
>
>
>
>
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