Re: options edns0

[Dustin Marquess <dmarquess%gmail.com@localhost>]

Nevermind, I just found PR 48475.  Sorry for the noise!

-Dustin

On Mon, Nov 10, 2014 at 5:24 PM, Dustin Marquess <dmarquess%gmail.com@localhost> wrote:
> Sorry if that has already been fixed, as my -current build is from
> about 5 months ago.
>
> Since I use unbound as my local recursive resolver I decided to add
> 'options edns0' to /etc/resolv.conf.  I noticed as soon as I did that,
> DNS resolution broke immediately.  dig is using EDNS0 successfully
> however, so I changed it to 'options edns0 debug' and tried again.
>
> I then noticed that the query was sending:
>
> EDNS: version: 0, udp=0, flags=0000
>
> So a 0-sized buffer.  It seems that bind9 allows that and ignores it,
> however unbound rejects it.  dig is sending a 4096-byte buffer, and
> that works.
>
> Some digging shows that Solaris had a similar problem back in 2007:
>
> http://marc.info/?l=opensolaris-bugs&m=119436900815147&w=2
>
> Looks like NetBSD might still have that issue?  Has anybody gotten
> edns0 to work correctly?
>
> -Dustin