NETGEAR DGFV338 manual Dual WAN Port Systems

Chapter 5

Virtual Private Networking

This chapter describes how to use the virtual private networking (VPN) features of the ProSafe DGFV338. VPN tunnels provide secure, encrypted communications between your local network and a remote network or computer.

Tip: When using dual WAN port networks, use the VPN Wizard to configure the basic parameters and them edit the VPN and IKE Policy screens for the various VPN scenarios.

Dual WAN Port Systems

The ADSL port and the Ethernet port of the ProSafe DGFV338 can be configured for auto-rollover mode for increased system reliability (if both ports are configured) or, if only one of the ports is configured, they can be configured as either Dedicated ADSL or Dedicated Ethernet. This WAN mode choice then impacts how the VPN features must be configured.

Table 5-1. IP addressing requirements for VPNs in dual WAN port systems

Configuration and WAN IP address		Rollover Modea	Dedicated Mode
VPN Road Warrior	Fixed	FQDN required	Allowed (FQDN optional)
(client-to-gateway)
	Dynamic	FQDN required	FQDN required
VPN Gateway-to-Gateway	Fixed	FQDN required	Allowed (FQDN optional)
	Dynamic	FQDN required	FQDN required
VPN Telecommuter	Fixed	FQDN required	Allowed (FQDN optional)
(client-to-gateway through a
	Dynamic	FQDN required	FQDN required
NAT router)

a. All tunnels must be re-established after a rollover using the new WAN IP address.

Virtual Private Networking 5-1

v1.0, April 2007