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1/2 IPSec over GRE with MikroTik's RouterOS and Linux

This is the part 1 of 2, providing explanations and How-Tos for:

  • creating GRE tunnels between a linux server and a MikroTik Router
  • configuring IPsec to encrypt the traffic on the GRE interfaces

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Compiling FreeSWITCH

I worked a lot with asterisk when it came to provide VoIP. As there a plans to provide VoIP via WebRTC too and asterisk didn't prove to be very well suited because of SIP incompatibilities, I decided to have a look at FreeSWITCH.

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Simple traffic graphing

To see to what extent the jumpnet is used and to determine the utilization of Jens' internet connection (he's the hub in our hub-and-spoke network topology) we need a simple traffic graphing tool. This is where MRTG comes into play. This article describes how to configure MRTG and MikroTik to graph the traffic.

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Virtualization with KVM

Do you know this scenario: Every time you want to try something out, you need to install linux on some hardware. After you've played around, the system is in a somehow messy state. The next time you want to try something, you need to start over...

I don't have time for this anymore and wanted to be more flexible. In the past I read a lot about qemu and kvm, so let's give it a try.

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PtP radio mounting

Maybe you remember my improvised PtP radio link. Yesterday I did the fixed installation with a special window mounting.

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VLAN on a RouterBoard

One cable and three networks which must be able to transport data over it. This is a typical use case for VLANs. Unfortunatelly, I the hardware in use is no dedicated switch hardware but RouterBoards. Let's see if we can create VLANs with it anyway.

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I received a gift: HP ProCurve 2510-24

A friend of mine just gave me a HP ProCurve 2510-24 he could save from the bin. A new toy for the collection :-)

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MikroTik RouterOS simple queues

A short introduction in MikroTik RouterOS simple queues and for what you can use them.

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Inside a dishwasher

If you have ever wondered about how the inside of a dishwasher looks like, here are some pictures of the inside of a Bosch device.

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MikroTik hAP lite

I needed to connect a DECT phone to my asterisk pbx, so I got a MikroTik hAP lite and a AVM Fritz!Box 7170. This is a short review of the hAP lite and a description of the setup.

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