User's Manual

100 | Chapter 7. Virtual Private Networking
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 User Manual
Follow this procedure to configure a gateway-to-gateway VPN tunnel using the VPN Wizard.
VPN tunnel
Internet
IP: 192.168.0.1 IP:192.168.3.1
Gateway B
Gateway A
22.23.24.25
14.15.16.17
Figure 45. Gateway-to-Gateway VPN Tunnel
Set the LAN IPs on each wireless modem router to different subnets and configure each
correctly for the Internet. The subsequent examples assume the settings shown in the
following table.
Table 18. Gateway-to-Gateway VPN Tunnel Configuration Worksheet
Parameter Value to Be Entered Field Selection
Connection Name GtoGr N/A
Pre-Shared Key 12345678 N/A
Secure Association N/A Main Mode Manual Keys
Perfect Forward Secrecy N/A Enabled Disabled
Encryption Protocol N/A DES 3DES
Authentication Protocol N/A MD5 SHA-1
Diffie-Hellman (DH) Group N/A Group 1 Group 2
Key Life in seconds 28800 (8 hours) N/A
IKE Life Time in seconds 3600 (1 hour) N/A
VPN Endpoint Local IPSecID LAN IP Address Subnet Mask FQDN or Gateway
IP (WAN IP
Address)
Gateway_A GW_A 192.168.0.1 255.255.255.0 14.15.16.17
Gateway_B GW_B 192.168.3.1 255.255.255.0 22.23.24.25
Note: The LAN IP address ranges of each VPN endpoint must be different.
The connection will fail if both are using the NETGEAR default
address range of 192.168.0.x.