[OpenWrt-Devel] [PATCH, v2] dnsmasq: prevent forwarding RFC6303 zones

[Kevin Darbyshire-Bryant]

On 19/10/15 01:18, Stefan Monnier wrote:
>> RFC6303 specifies reverse dns zones that ideally should not be forwarded
>> to upstream (root) servers and create unnecessary load upon them.
> Shouldn't this be done upstream (i.e. in dnsmasq directly) rather than
> in our config?
>
>
>         Stefan

Ideally yes.  I'm currently looking at adding the additional ipv4
addresses in its exclude list with a view to sending a patch to Simon
because there seems to be an unwillingness to move on this topic here, 
Unfortunately there's no pre-existing ipv6 'bogus-priv' block section of
code for me to extend and I suspect it may be beyond my
copy'n'paste'n'tweak code skills.

More controversially I'm also of the opinion that 'bogus-priv' should be
on in dnsmasq by default and I will suggest that to Simon.

May I ask you look at the v1 of this patch to see how things have been
headed so far: https://patchwork.ozlabs.org/patch/522303/

Meantime, I'm not a complete fan of occupying bandwidth & time on dns
root servers sending them queries we know they cannot answer, so until
(hopefully) upstream dnsmasq handles this sort of thing, I really don't
see why we shouldn't.

Kevin



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