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

I finally did it: I wrote the second part...

This is the second part, explaining how to create GRE tunnels between a linux server and a MikroTik Router and encrypt the tunnel using IPSec.

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Hardware VLAN with MikroTik Routerboards and RouterOS

I needed a VLAN trunk but had no VLAN capable switches - at least I thought so. After thinking a minute, I remembered my two RB2011. I'll show you how to configure VLAN trunks with them.

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ECMP routing - equal-cost multi-path routing

As you propably know, the jumpNet has a redundant VPN infrastructure and is using OSPF. To improve the network design futher, I investigated the possibility of equal-cost multi-pathing. Doing so I needed to tackle a little with the stateful firewall.

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(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.

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MikroTik CAP and CAPsMAN

Some time ago, MikroTik included a WiFi controller feature into RouterOS. Today, I implemented it in my home network.

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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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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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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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MikroTik RouterOS simple queues

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

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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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