Hotels/Airports with IPv6

Thu Jul 9 15:16:17 UTC 2015

On Jul 9, 2015, at 9:53 AM, Jared Mauch <jared at 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 at ndsu.edu
Certified NetAnalyst II                701-231-8527
North Dakota State University        