+++
title = "VPN tunnel into HAMNET on Fedora 36"
aliases = '/posts/2022-10-16-vpn-tunnel-into-hamnet-on-fedora-36'
summary = """Those old tutorials on the net are quite outdated now: unfortunately
PPTP links/tunnels are not supported on newer operating systems any more..."""
date = "2022-10-16T21:26:40+02:00"
#lastmod = ""
categories = ["amateur-radio"]
tags = ["hamnet","fedora","networking","linux"]

+++

Since none of the found instructions worked for me: here are my settings
of my VPN tunnel into HAMNET. I'm currently using Fedora 36 on my main notebook
and Fedora removed PPTP support back in Fedora 35 -- I could not get the PPTP
tunnel working.

## L2TP client

I found a document that shows the creation of an L2TP tunnel on MacOS and I
used that as my starting point.

First of all, install NetworkManager-l2tp-gnome:

~~~console
$ sudo dnf install NetworkManager-l2tp-gnome
~~~

After that, create the new VPN tunnel in `Settings` → `Network` → `VPN`.

Click the <kbd>+</kbd> button and select `Layer 2 Tunneling Protocol (L2TP)`
and fill in the settings that you got from your Administrator (usually where
you got your login data). I got mine from [RWTH Aachen in Germany][1].

[1]: https://www.afu.rwth-aachen.de/projekte/hamnet/anwendungen/vpn-zugang

{{< figure src="hamnetvpn01.png" alt="basic settings"
    caption="Basic settings. Enter login data." >}}

{{< figure src="hamnetvpn02.png" alt="IPv4 settings"
    caption="IPv4 settings. Those work for my setup at home." >}}

{{< figure src="hamnetvpn03.png" alt="IPv6 settings"
    caption="I'm not using IPv6 at home..." >}}

{{< figure src="hamnetvpn04.png" alt="IPSec settings"
    caption="Somehow that setup only worked when I removed this setting?" >}}

{{< figure src="hamnetvpn05.png" alt="PPP settings"
    caption="And I ended up using those settings for PPP" >}}

## More information

I've also found some more links -- just when I finished formatting this article.

It looks like the following article is online since 2018; but I found this after
I started using the L2TP tunnel that I just created a few hours before. It
describes the setup of an OpenVPN client, but it is limited to users with a
static HAMNET IP address.

- Original article found on HAMNET  
    <http://web.db0sda.ampr.org/projekte/hamnet/anwendungen/vpn-zugang/openvpn-hamnet-dial-in>
- Also available on normal internet  
    <https://www.afu.rwth-aachen.de/projekte/hamnet/anwendungen/vpn-zugang/openvpn-hamnet-dial-in>