Mikrotik L2tp Ipsec Site-to-site

Mikrotik L2tp Ipsec Site-to-site

What is L2TP?The Layer 2 Tunneling-Protocol or L2TP for short is a protocol which allows us to establish a virtual tunnel between two routers.For all intents and purposes you can think of an L2TP tunnel as a VPN tunnel which bridges two networks together. One thing to take note of regarding L2TP is that it runs over UDP (Port 1701) and not TCP to create the tunnel.Another thing to consider regarding L2TP is that it does not encrypt traffic inside the tunnel like an IPSEC tunnel would, which is why you may find additional protocols running inside the tunnel like IPSEC to add encryption. Click on PPP - Select the L2TP Server button - click 'enabled' hit apply and ok.

Click on PPP - Select the Profiles tab - Click on the '+' button to add a profile. Give the profile a name in my example we will use R1L2TP.

Assign a Local address, this can be any /32 private address preferably one not on the network. Example '10.1.0.1' This is the tunnel IP address which will be assigned to the L2TP server. Assign a Remote address, this can be any /32 private address preferably one not on the network. Bon secours depaul medical center cna program.

In this post we are going to create an IPsec VPN tunnel between two remote sites using Mikrotik routers with dynamic public IPs. By default, Mikrotik does not allow to use FQDN (domain names) to setup an IPsec tunnel, so we are going to create some scripts to update the IPsec configuration whenever the local or remote IPs change.

Mikrotik L2tp Ipsec Site-to-siteIpsec

Example '10.1.0.2' This is the tunnel IP address which the L2TP server will assign to the client. You can now hit Apply & Ok. Click on PPP - Select the Secrets tab - Click on the '+' button to add a secret.

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Give the secret a name in my example we will use R1L2TP. Now we need to set a password which the client will use to connect in our example we will use 123456. Set the service you can click on the dropdown box and select L2TP or leave it on any. Finally select the profile that we created earlier by clicking the dropdown box and selecting R1L2TP or whatever name you gave your profile. L2TP Client ConfigurationConfiguring an L2TP client on a MikroTik router is a lot easier than configuring a server and requires you to simply create a new L2TP-Client interface. Your L2TP client should now be connecting to verify you can check on either the server or client to see if there is an R on the interface, if there is no R then the connection is not up.

One hint I can give when setting up L2TP tunnels and wanting to route traffic it is best practice to ensure that you add a static route with your L2TP server public IP to go out over your default gateway. If you accidentally route all traffic over the tunnel you will cause the tunnel to go down.I hope this post has been informative and that you have gotten the answers you were looking for. If not feel free to leave a comment and I will do my best to answer you 🙂.

Mikrotik L2tp Ipsec Site-to-site
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