Setting Up The Secure L2Tp Connection; Figure 22: L2Tp With Ipsec Application; Figure 23: L2Tp/Ipsec Connection - Juniper IP SERVICES - CONFIGURATION GUIDE V 11.1.X Configuration Manual

JUNOSe 11.1.x IP Services Configuration Guide

Figure 22: L2TP with IPSec Application

Setting Up the Secure L2TP Connection

Figure 23 on page 290 gives an overview of the process used to set up a secure
connection between the client PC and an E Series router that is acting as a VPN
provider.

Figure 23: L2TP/IPSec Connection

To set up the secure connection shown in Figure 23 on page 290:
1.
2.
3.
290
L2TP/IPSec Tunnels
Obtain an IP address from your ISP, using a normal B-RAS termination.
IKE signals a security association (SA) between the client PC and the E Series
router that is acting as a VPN provider.
SAs are established to secure data traffic.
The IPSec connection secures L2TP traffic.
Set up an L2TP tunnel and session between the client PC (the LAC) and the E
Series router (the LNS).
The tunnel runs over the SAs that IKE established.