[120095] in North American Network Operators' Group
Re: Breaking the internet (hotels, guestnet style)
daemon@ATHENA.MIT.EDU (Stephen Sprunk)
Wed Dec 9 13:42:51 2009
Date: Wed, 09 Dec 2009 12:41:54 -0600
From: Stephen Sprunk <stephen@sprunk.org>
To: Jens Link <lists@quux.de>,
North American Noise and Off-topic Gripes <nanog@merit.edu>
In-Reply-To: <87ws0wcxbp.fsf@laphroiag.quux.de>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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Jens Link wrote:
> Owen DeLong <owen@delong.com> writes:
>
>> I expect my connections to my mail server to actually reach my mail server. I use TLS and SMTP AUTH as well as IMAP/SSL. Many of the "just works" settings in question break these things badly.
>>
>
> One of my customers has an appliance for his WLAN guest access access
> which filters out AAAA records. :-(
>
> jens@bowmore:~$ dig AAAA www.quux.de @8.8.8.8 +short
> jens@bowmore:~$
>
That, unfortunately, is not uncommon. Actually, it's one of the _less_
broken systems I've seen, since IPv4 presumably keeps working.
One major vendor of hotel guestnet equipment returns an A record for
0.0.0.1 if you do an ANY or AAAA query for any hostname--even ones that
don't exist. At least with WinXP, you have to disable IPv6 just to get
IPv4 to work! Worse, their tech support sees nothing wrong with this;
if you disagree, all they'll do is offer a refund. Unfortunately, "take
your money elsewhere" doesn't work when you've already paid for the
hotel room--and they know it.
S
--
Stephen Sprunk "God does not play dice." --Albert Einstein
CCIE #3723 "God is an inveterate gambler, and He throws the
K5SSS dice at every possible opportunity." --Stephen Hawking
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