Specifications

UTT Technologies Chapter 12 VPN
http://www.uttglobal.com Page 241
Figure 12-28 Network Topology – UTT VPN Gateway and UTT VPN Gateway (Bidirectional)
In this scenario (seeFigure 12-28 Network Topology – UTT VPN Gateway and UTT
VPN Gateway (Bidirectional)), we deploy two UTT VPN gateways at a company: one is
located at the head office, and the other is located at the branch office. Now we want to
use AutoKey (IKE) mode to establish an IPSec tunnel between them, and use the
following proposals (i.e., encryption and authentication algorithms): the phase 1 proposals
are left at their default values, and the preferred phase 2 proposal is
esp-aes256-md5-ah-sha; in addition, the preshared key is testing, and the IP addresses
are as follows:
The UTT VPN gateway at the head office:
 WAN Interface IP Address: 200.200.202.123/24
 Default Gateway IP Address: 200.200.202.254/24
 LAN Interface IP Address: 192.168.123.1/24
The UTT VPN gateway at the branch office:
 WAN Interface IP Address: 200.200.202.16/24
 Default Gateway IP Address: 200.200.202.254/24
 LAN Interface IP Address: 192.168.16.1/24
1. Configuring the UTT VPN gateway at the head office
Go to the VPN > IPSec > IPSec Settings page, make the following settings (leave the
default values for the other parameters), and then click the Save button.
Connection Type
Bidirectional
Gateway IP/Domain Name
(Remote)
200.200.202.16
Subnet IP (Remote)
192.168.16.1
Subnet Mask (Remote)
255.255.255.0