[dns-operations] QID 1234

[bert hubert]

On Wed, Jan 20, 2016 at 03:14:04PM -0500, Jared Mauch wrote:
> Anyone seen this where you have the same repeating query for a.root-servers.net with query-id of 1234?

This may have been an old version of dnsdist! I've been known to put 1234 as
a placeholder for the id field. 

And older versions of dnsdist did indeed always query a.root-servers.net to
check if a server was alive.

And finally, I seem to recall you looking at dnsdist :)

Please let me know.

	Bert

> 
> 15:12:11.714588 IP 172.29.51.8.36281 > x.x.x.x.53: 1234+ A? a.root-servers.net. (36)
> 15:12:11.715537 IP x.x.x.x.53 > 172.29.51.8.36281: 1234 1/0/0 A 198.41.0.4 (52)
> 
> I’m kinda curious what this is as it appears to not cache the answer and is the same query-id.
> 
> — Jared
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