NETGEAR ProSafe FVS336Gv2 Reference Manual page 438

ProSAFE Dual WAN Gigabit WAN SSL VPN Firewall FVS336Gv2
13. Enter the settings as described in the following table.
WARNING:
Do not enter an existing route for a VPN tunnel client in the
Destination Network and Subnet Mask fields; otherwise, the SSL
VPN Wizard fails when you attempt to apply the settings.
Setting
Client IP Address Range
Enable Full Tunnel Support
DNS Suffix
Primary DNS Server
Set Up Virtual Private Networking with SSL Connections
Description
Select this check box to enable full-tunnel support. Full tunnel support
provides clients access to the entire LAN network.
If you leave this check box cleared (which is the default setting), full-tunnel
support is disabled but split-tunnel support is enabled and you must add a
client route by completing the Destination Network and Subnet Mask fields.
Split-tunnel support provides clients access to specific networks.
Note: When full-tunnel support is enabled, client routes are not operable.
A DNS suffix to be appended to incomplete DNS search strings. This setting
is optional.
The IP address of the primary DNS server that is assigned to the VPN tunnel
clients. This setting is optional.
Note: If you do not assign a DNS server, the DNS settings remain unchanged
in the VPN client after a VPN tunnel is established.
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