Chapter 21 IPSec VPN
USG20(W)-VPN Series User’s Guide
335
Figure 222 SSL VPN
L2TP VPN
L2TP VPN uses the L2TP and IPSec client software included in remote users’ Android, iOS, or
Windows operating systems for secure connections to the network behind the USG. The remote
users do not need their own IPSec gateways or third-party VPN client software. For example,
configure sales representatives’ laptops, tablets, or smartphones to securely connect to the USG’s
network. See Chapter 25 on page 396 for more on L2TP over IPSec.
Figure 223 L2TP VPN
21.1.1 What You Can Do in this Chapter
•Use the VPN Connection screens (see Section 21.2 on page 338) to specify which IPSec VPN
gateway an IPSec VPN connection policy uses, which devices behind the IPSec routers can use
the VPN tunnel, and the IPSec SA settings (phase 2 settings). You can also activate or deactivate
and connect or disconnect each VPN connection (each IPSec SA).
•Use the VPN Gateway screens (see Section 21.2.1 on page 339) to manage the USG’s VPN
gateways. A VPN gateway specifies the IPSec routers at either end of a VPN tunnel and the IKE
SA settings (phase 1 settings). You can also activate and deactivate each VPN gateway.
•Use the VPN Concentrator screens (see Section 21.4 on page 354) to combine several IPSec
VPN connections into a single secure network.
•Use the Configuration Provisioning screen (see Section 21.5 on page 356) to set who can
retrieve VPN rule settings from the USG using the USG IPSec VPN Client.
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