Evolving My IPv6 Setup at Home

One of slowest topics in networking is probably the take-up of IPv6 on the client side. Despite this, I’ve been evolving the IPv6 connectivity of my servers at home over the years and with my recent evolution to virtual machines and a new DynDNS hoster, things are now even smoother and a lot simpler.

33C3: IPv6 at Home – Make Sure Your IPv6 Firewall Works As Intended!

Back in 2016, I’ve written quite a number of blog posts about how to set up a server at home that is reachable over IPv6. Here’s a link to the summary. Over time one forgets some of the details so I recently couldn’t remember anymore if I’ve just opened my IPv6 firewall for single ports … Continue reading 33C3: IPv6 at Home – Make Sure Your IPv6 Firewall Works As Intended!

Ubuntu 16.04 Leaks DNS Requests With OpenVPN Tunnels and IPv6

Recently I noticed, much to my dismay, that when using OpenVPN over network interfaces for which IPv4 and IPv6 is configured, Ubuntu 16.04 doesn’t configure DNS lookups correctly. As a result, DNS requests that should only be sent inside the OpenVPN tunnel are sent on the outside network interface thus massively compromising security and privacy. … Continue reading Ubuntu 16.04 Leaks DNS Requests With OpenVPN Tunnels and IPv6

IPv6 When Tethering

Just because a smartphone can get an IPv6 address from a cellular network doesn’t necessarily mean that its tethering functionality is also IPv6 capable. Fortunately, I’ve noticed in practice that more and more devices that are coming to the market these days have implemented the feature. And here is how it works:

IPv6 When Roaming – Part 2

A couple of weeks ago I had a post in which I noted that while I have mobile IPv4v6 connectivity while I’m in my home country, I get IPv4-only connectivity when roaming by default. Now it looks like this is not universally true anymore.