NETGEAR FVS318N

Network and System Management
273
ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N
Features That Increase Traffic
The following features of the wireless VPN firewall tend to increase the traffic load on the
WAN side:
• LAN W
AN inbound rules (also referred to as port forwarding)
• DMZ W
AN inbound rules (also referred to as port forwarding)
• Port triggering
• Enabling t
he DMZ port
• Config
uring exposed hosts
• Config
uring VPN tunnels
LAN WAN Inbound Rules and DMZ WAN Inbound Rules (Port Forwarding)
The LAN WAN Rules screen and the DMZ WAN Rules screen list all existing rules for
inbound traffic (from WAN to LAN and from WAN to the DMZ). If you have not defined any
rules, only the default rule is listed. The default rule blocks all access from outside except
responses to requests from the LAN side. Any inbound rule that you create allows additional
incoming traffic and therefore increases the traffic load on the WAN side.
WARNING!
This feature is for advanced administrators. Incorrect
configuration might cause serious problems.
Each rule lets you specify the desired action for the connections covered by the rule:
• BLOCK always
• BLOCK by schedu
le, otherwise allow
• ALLOW always
• ALLOW by
schedule, otherwise block
The following section summarizes the various crite
ria that you can apply to inbound rules and
that might increase traffic. For more information about inbound rules, see Inbound Rules
(Port Forwarding) on p
age 112. For detailed procedures on how to configure inbound rules,
see Set LAN WAN Rules on p
age 116 and Create DMZ WAN Rules on page 119.
When you define inbound firewall rules, you can further refine their application according to
t
he following criteria:
• Services. Y
ou can specify the services or applications, or groups of services or
applications to be covered by an inbound rule. If the desired service or application does
not display in the list, you need to define it using the Services screen (see Service-Based
Rules on p
age 109 and Add Customized Services on page 136).
• W
AN destination IP address. You can specify the destination IP address for incoming
traffic. Traffic is directed to the specified address only when the destination IP address of
the incoming packet matches the IP address of the selected WAN interface.