Virtual Private Networking
116
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700
Example of Using Auto Policy
VPN Tunnel
Internet
Gateway A
Gateway B
22.23.24.25
14.15.16.17
IP: 192.168.0.1 IP:192.168.3.1
Figure 46.
The following settings are assumed for this example:
Table 20. Gateway-to-gateway VPN tunnel configuration worksheet
Parameter Value to Be Entered Field Selection
Connection Name GtoG 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 (W
AN IP Add
ress
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
1. Set the LAN IPs on each wireless modem router to different subnets and configure each
correctly for the Internet. On the main menu, select VPN Policies and click the Add
Auto Policy button.
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