Catalin said it was OpenVPN. EE have many VPNs working from tethered devices across the range of IPsec/SSL etc., we’ve been doing this for other cellular devices since end of 2016.
I have reached out to her off list, I believe the issue is DNS64 + OpenVPN related. I suspect fixing DNS leakage, which is a config in openVPN – getting synthesized AAAA for IPv4 destinations is no use when you want to route IPv4 into the VPN tunnel. So use DNS within the tunnel (or shut down IPv6 routing all together will work). https://www.dnsleaktest.com/how-to-fix-a-dns-leak.html From: uknof <[email protected]> On Behalf Of Tim Bray Sent: 21 November 2018 16:38 To: [email protected] Subject: Re: [uknof] IPv6 default on EE On 19/11/2018 17:58, Catalin Dominte wrote: I went on the laptop and set IPv6 for the connection to Link Local Only as apple removed the off setting too. Everything now goes via IPv4 and I can now do my job again and connect to resources via VPN tunnels on IPv4.Not ideal, I know, but I cannot just drop IPv4 for now. What kind of VPN? Because (correct me if I'm wrong) most PPTP, L2TP and IPSec need some helper to get through NAT. So maybe normal IPv4 stuff would just work, but in the process of the upgrade they have broken or lost the NAT helpers you were used to having before? Tim Bray
