Netgear FVX538 FVX538 Reference Manual - Page 103

Virtual Private Networking, Dual WAN Port Systems

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Chapter 5 Virtual Private Networking This chapter describes how to use the virtual private networking (VPN) features of the VPN firewall. 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 dual WAN ports in the VPN firewall can be configured for either Auto-Rollover mode for increased system reliability or Load Balancing mode for optimum bandwidth efficiency. This WAN mode choice then impacts how the VPN features must be configured. Refer to "Virtual Private Networks (VPNs)" on page C-10 for an overview of the IP addressing requirements for VPN in the two WAN modes. To aid in determining the addressing requirements for your VPN Tunnel in either rollover mode or load balancing mode, see Table 5-1. Table 5-1. IP Addressing for VPNs in Dual WAN Port Systems Configuration and WAN IP address Rollover Modea VPN Road Warrior (client-to-gateway) Fixed Dynamic VPN Gateway-to-Gateway Fixed Dynamic VPN Telecommuter Fixed (client-to-gateway through a NAT router) Dynamic FQDN required FQDN required FQDN required FQDN required FQDN required FQDN required a. All tunnels must be re-established after a rollover using the new WAN IP address. Load Balancing Mode Allowed (FQDN optional) FQDN required Allowed (FQDN optional) FQDN required Allowed (FQDN optional) FQDN required Virtual Private Networking 5-1 v1.0, August 2006

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Virtual Private Networking
5-1
v1.0, August 2006
Chapter 5
Virtual Private Networking
This chapter describes how to use the virtual private networking (VPN) features of the VPN
firewall. VPN tunnels provide secure, encrypted communications between your local network and
a remote network or computer.
Dual WAN Port Systems
The dual WAN ports in the VPN firewall can be configured for either Auto-Rollover mode for
increased system reliability or Load Balancing mode for optimum bandwidth efficiency. This
WAN mode choice then impacts how the VPN features must be configured.
Refer to
“Virtual Private Networks (VPNs)” on page C-10
for an overview of the IP addressing
requirements for VPN in the two WAN modes. To aid in determining the addressing requirements
for your VPN Tunnel in either rollover mode or load balancing mode, see
Table 5-1
.
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.
Table 5-1.
IP Addressing for VPNs in Dual WAN Port Systems
Configuration and WAN IP address
Rollover Mode
a
a. All tunnels must be re-established after a rollover using the new WAN IP address.
Load Balancing Mode
VPN Road Warrior
(client-to-gateway)
Fixed
FQDN required
Allowed (FQDN optional)
Dynamic
FQDN required
FQDN required
VPN Gateway-to-Gateway
Fixed
FQDN required
Allowed (FQDN optional)
Dynamic
FQDN required
FQDN required
VPN Telecommuter
(client-to-gateway through
a NAT router)
Fixed
FQDN required
Allowed (FQDN optional)
Dynamic
FQDN required
FQDN required