Netgear FVS336G-300NAS Specifications Page 336

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Set Up Virtual Private Networking With IPSec Connections
336
ProSAFE Dual WAN Gigabit WAN SSL VPN Firewall FVS336Gv3
Dual WAN Port Systems
If two WAN ports are configured for either IPv4 or IPv6, you can enable either auto-rollover
mode for increased system reliability or load balancing mode for optimum bandwidth
efficiency. The selection of the WAN mode determines how you must configure the VPN
features.
If the WAN ports function in auto-rollover mode, you must use fully qualified domain names
(FQDNs) in VPN policies. FQDNs are also required for VPN tunnel failover. If the WAN ports
function in load balancing mode, you cannot configure VPN tunnel failover. In load balancing
mode, FQDNs are optional if the WAN IP addresses are static but mandatory if the WAN IP
addresses are dynamic.
For more information about the IP addressing requirements for VPNs in the dual WAN
modes, see
Planning for Virtual Private Networks on page 636.
For information about how to select and configure a Dynamic DNS service for resolving
FQDNs, see
Manage Dynamic DNS Connections on page 63.
For information about configuring auto-rollover and load balancing, see the following
sections:
Configure Load Balancing or Auto-Rollover for IPv4 Interfaces on page 48
Configure Auto-Rollover for IPv6 Interfaces on page 109 (load balancing is not supported
for IPv6 interfaces)
The following diagrams and table show how the WAN mode selection relates to VPN
configuration.
Figure 6. WAN auto-rollover: FQDN required for VPN
Rest of
VPN firewall
functions
VPN firewall
WAN port
functions
VPN firewall
rollover
control
Multiple WAN port model
WAN 1 port
WAN 2 port
Internet
Same FQDN required for both WAN ports
WAN auto-rollover: FQDN required for VPN
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