Projects

Have fun browsing my projects. In case you have any questions, don't hesitate to contact me. I'll answer your e-mail as soon as possible!

If you're interested in a RSS feed, you'll find it here.

Finally, you can filter the projects by tags:

jumpNet topology update and change of VPN technology

Two more sites joined the jumpNet and we swapped the vpn server hardware. Now, the core of the jumpNet is powered by two RB750Gr3 or hEX.

Read more …

(MikroTik) IPSec: I can't ping the router itlsef. Why?

I just configured some IPSec tunnels to connect the management network to our company's local network and stumbled over a well known problem: I can ping hosts "behind" the router doing IPSec, but I cannot ping the router itself. Read why and how to circumvent this issue.

Read more …

Vodafone - what the hell is going on? [last update 09.01.2017]

When I moved to Freiburg some years ago, I ordered my internet access from Arcor. Some time ago Arcor was bought by Vodafone and I involuntarily became a Vodafone customer. The transisition from Arcor to Vodafone went smoothly, but now, I'm experiencing odd issues with my Vodafone line...

Read more …

MPLS - what is that?

In the past years, I learned a lot about the technologies used in the internet and apart from some people dealing with them every day, nobody knows. One of these technologies is MPLS. I read a lot about it but never tried to set it up myself. Here we go...

Read more …

jumpNet

The jumpNet is a private computer network to experiment with. It started with a VPN tunnel between two friends and is now connecting sites in Freiburg, Offenburg, Munich and Nuremberg.

Read more …