Juniper Firewall L2TP over IPSec configuration diagram

In the front I sent an article "Juniper Firewall diagram L2TP VPN Configuration", we learned from that article how to configure. But we know that the L2TP VPN is only connected to our L2TP VPN server, but it doesn't encrypt our data, and we know that IPSec's data is encrypted, and if the IPSec-unaware friend can look at my previous IPSec VPN concepts (i) And the concept of IPSec VPN (ii) to understand. Okay, so our IPSec needs to be encrypted, and our L2TP provides us with a connection to the server, so how do we not combine it together, which is the role of our encryption, and our remote connection. So let's take a look at how to configure it?

Let's review the configuration of the L2TP VPN for our Juniper firewall:

The first step: we first set up an address pool, to give us access through the L2TP VPN dial-up users.

Click "New" on the right side of "objects>>ip pools" to add a new address pool.

IP Pool Name: The name of the address pool so that we can wait a good call later.

Start IP: The starting IP address of this address pool.

End IP: The ending IP address of this address pool.

Click "OK" when you have finished filling in.