Re: Hotels/Airports with IPv6

[Bruce Curtis <bruce.curtis () ndsu edu>]

On Jul 9, 2015, at 9:53 AM, Jared Mauch <jared () puck nether net> wrote:

> It’s my understanding that many captive portals have trouble with IPv6 traffic and this is a blocker for places.
>
> I’m wondering what people who deploy captive portals are doing with these things?
>
> https://tools.ietf.org/html/draft-wkumari-dhc-capport
>
> seems to be trying to document the method to signal to clients how to authenticate.  I was having horrible luck with 
> Boingo yesterday at RDU airport with their captive portal and deauthenticating me so just went to cellular data, so 
> wondering if IPv4 doesn’t work well what works for IPv6.
>
> Thanks,
>
> - Jared

  We use the HotSpot feature on a Mikrotik box as a captive portal.  It does not re-direct IPv6 web traffic but it does 
redirect all IPv4 DNS traffic to a DNS resolver that only answers with A records.  Once a device has been authenticated 
IPv4 DNS traffic goes to a DNS server that will answer with AAAA records also.

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Bruce Curtis                         bruce.curtis () ndsu edu
Certified NetAnalyst II                701-231-8527
North Dakota State University