L2TP is a secure tunnel protocol for transporting IP traffic using PPP. L2TP encapsulates PPP in virtual lines that run over IP, Frame Relay and other protocols (that are not currently supported by MikroTik RouterOS). L2TP incorporates PPP and MPPE (Microsoft Point to Point Encryption) to make encrypted links. The purpose of this protocol is to allow the Layer 2 and PPP endpoints to reside on different devices interconnected by a packet-switched network. With L2TP, a user has a Layer 2 connection to an access concentrator – LAC (e.g., modem bank, ADSL DSLAM, etc.), and the concentrator then tunnels individual PPP frames to the Network Access Server – NAS. This allows the actual processing of PPP packets to be separated from the termination of the Layer 2 circuit. From the user’s perspective, there is no functional difference between having the L2 circuit terminate in a NAS directly or using L2TP.
Step 1 – Create PPtP Client.
Step 2 – Set name on your new interface.
Step 3 – Write ip address of your MAIN mikrotik and username and password which we will create later on MAIN mikrotik.
Step 4 – Your new interface have to look like as below.
Step 5 – Open your MAIN Mikrotik click on PPP tab and navigate to Secrets. Then click + and create account.
Step 6 – You have tp set the same values that you wrote on the main router.
Step 7 – Set local and remote ip address.
Step 8 – You have to activate PPtP Server of your MAIN Mikrotik.
Step 9 – When your second mikrotik connect to MAIN Mikrotik automatically created rules in Mangle.
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