About Services-Based Rules - NETGEAR FVS336Gv1 - ProSafe Dual WAN Gigabit Firewall Reference Manual

ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336G Reference Manual

About Services-Based Rules

The rules to block traffic are based on the traffic's category of service.
• Outbound Rules (service blocking). Outbound traffic is normally allowed unless the VPN
firewall is configured to disallow it.
• Inbound Rules (port forwarding). Inbound traffic is normally blocked by the VPN firewall
unless the traffic is in response to a request from the LAN side. The VPN firewall can be
configured to allow this otherwise blocked traffic.
• Customized Services. Additional services can be added to the list of services in the factory
default list. These added services can then have rules defined for them to either allow or block
that traffic (see "Adding Customized Services" on page
• Quality of Service (QoS) priorities. Each service at its own native priority that impacts its
quality of performance and tolerance for jitter or delays. You can change this QoS priority if
desired to change the traffic mix through the system (see
Priorities" on page
Outbound Rules (Service Blocking)
The VPN firewall allows you to block the use of certain Internet services by PCs on your network.
This is called service blocking or port filtering.
The default policy can be changed to block all outbound traffic and enable only specific services to
pass through the VPN firewall. The following Outbound Rules table lists the configured rules for
outgoing traffic. An outbound rule is defined by the following fields:
Table 4-1. Outbound Rules
Item Description
Service Select the desired service or application to be covered by this rule. If the desired service
or application does not appear in the table, you must define it using the Services screen
(see "Adding Customized Services" on page
Action Select the desired action for outgoing connections covered by this rule:
• BLOCK always
• BLOCK by schedule, otherwise Allow
• ALLOW always
• ALLOW by schedule, otherwise Block
Note: Any outbound traffic that is not blocked by rules you create will be allowed by the
default rule.
ALLOW rules are only useful if the traffic is already covered by a BLOCK rule. That is, you
wish to allow a subset of traffic that is currently blocked by another rule.
Firewall Protection and Content Filtering
4-21).
v1.0, January 2010
4-19).
"Setting Quality of Service (QoS)
4-19).
4-3