Virtual Private Networking
91
N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2
Follow this procedure to configure a gateway-to-gateway VPN tunnel using the VPN Wizard.
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 5. Gateway-to-gateway VPN tunnel
Set the LAN IPs on each N300 wireless modem router to a different subnet and configure
each correctly for the Internet. The subsequent examples assume the settings shown in the
following table.
Table 4. 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 (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
The LAN IP address ranges of each VPN endpoint has to be different. The connection will fail
if both are using the NETGEAR default address range of 192.168.0.x.
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