nanog mailing list archives
Re: Hulu / ESPN: Commercial IP Address
From: Stuart Henderson <stu () spacehopper org>
Date: Mon, 15 Oct 2018 14:19:02 +0000 (UTC)
On 2018-10-15, Brandon Butterworth <brandon () rd bbc co uk> wrote:
On Sat Oct 13, 2018 at 02:39:37PM -0400, Daniel Corbe wrote:I had a customer with a similar issue. I statically assigned them a different IP and it didn???t resolve it. The problem turned out to be tied to their Hulu account.I had a similar issue with wifi calling on O2 in the UK. it worked on some wifi but not others. After pressing O2 support for quite some time they admitted "you're on commercial IP space which we don't support" but would say no more. After a little puzzling I realised the working wifis were NATed to 1918 so I added NAT to one that wasn't working and the phone registered OK for wifi calling. The address it was NATed to was the same range so it appears their test is for 1918 space on the client.
Wifi calling (and femtocells and UMA) use IPsec. If NAT is detected (rewriting just the port number is probably enough) it will trigger using UDP encapsulation, without NAT perhaps they are trying to do ESP and they've blocked that somewhere. They usually have geolocation / ISP whitelists too, presumably to stop people trying to use it to get around roaming charges. (I've also seen a Vodafone femtocell do something funny with frequent NTP packets which makes me suspect they may do latency checks sometimes as well).
Current thread:
- Hulu / ESPN: Commercial IP Address Jason Canady (Oct 13)
- Re: Hulu / ESPN: Commercial IP Address Daniel Corbe (Oct 13)
- Re: Hulu / ESPN: Commercial IP Address Tyler Harden (Oct 14)
- Re: Hulu / ESPN: Commercial IP Address Jason Hellenthal (Oct 14)
- Re: Hulu / ESPN: Commercial IP Address Brandon Butterworth (Oct 15)
- Re: Hulu / ESPN: Commercial IP Address Christian de Larrinaga (Oct 15)
- Re: Hulu / ESPN: Commercial IP Address Colin Johnston (Oct 15)
- Re: Hulu / ESPN: Commercial IP Address Stuart Henderson (Oct 15)
- Re: Hulu / ESPN: Commercial IP Address Tyler Harden (Oct 14)
- Re: Hulu / ESPN: Commercial IP Address Daniel Corbe (Oct 13)