Virtual Private Networking
129
N300 Wireless ADSL2+ Modem Router DGN2200v3
Example of Using Auto Policy
Gateway A
Gateway B
VPN Tunnel
Internet
22.23.24.25
14.15.16.17
IP: 192.168.0.1
IP:192.168.3.1
Figure 13. Auto Policy for a Gateway-to-Gateway tunnel
The following settings are assumed for this example:.
Table 8. 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 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
To use Auto Policy:
1. Set the LAN IPs on each modem router to dif
ferent subnets and configure each correctly
for the Internet.
2. Select Advanced - VPN > VPN Policies and click the Add Auto
Policy button.