Breaking the internet (hotels, guestnet style)

Owen DeLong owen at
Wed Dec 9 08:30:45 CST 2009

On Dec 9, 2009, at 1:26 AM, Jens Link wrote:

> Owen DeLong <owen at> 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 at bowmore:~$ dig AAAA @ +short
> jens at bowmore:~$ 
Wow... Yeah, that would definitely result in a lengthy conversation between
their tech. support department and me.

The ones that are even worse, though, are the ones that pass through AAAA
and do RA/SLAAC advertisements, but, don't provide IPv6 connectivity.

Oh, and, I stayed at one place that didn't pass TCP/53, so, they broke
things like Blizzard authentication.


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