ZyXEL Communications LTE7410 - Chapter 13 GRE VPN

LTE7410 User’s Guide
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CHAPTER 13
GRE VPN
13.1 Overview
GRE (Generic Routing Encapsulation) tunnels encapsulate a wide variety of network layer protocol
packet types inside IP tunnels. A GRE tunnel serves as a virtual point-to-point link between the LTE
Device and another router over an IPv4 network.
13.2 The Setup Screen
Use this screen to view and manage GRE VPN tunnels. Click Security > GRE VPN to open the
following screen.
Figure 66 Security > GRE VPN
The following table describes the labels in this screen.
Table 36 Security > L2TP VPN
LABEL DESCRIPTION
# This shows the index number of a GRE tunnel.
Active The check box is selected if the GRE VPN tunnel is enabled.
Tunnel Name This shows the name of this tunnel.
GRE Layer This shows whether the GRE VPN tunnels Layer 2 or Layer 3 protocol traffic.
Server IP Address This is the IP address or domain name of the remote gateway to which the LTE Device’s
WAN interface tunnels traffic.
Local IP Address This is the local hosts’ IP addresses for which the LTE Device tunnels traffic sent to the
remote gateway.
Remote IP
Address
This is the remote hosts’ IP addresses behind the remote gateway to which the LTE Device
tunnels traffic.
Modify Click the Edit icon to go to the screen where you can edit the GRE VPN tunnel.