Quick Reference Guide

ProSafe Wireless-N VPN Firewall SRXN3205 Reference Manual
Firewall Security and Content Filtering 5-3
v1.0, January 2010
• Inbound Rules (port forwarding). Inbound traffic is normally blocked by the firewall unless
the traffic is in response to a request from the LAN side. The 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 5-19).
• 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 “Setting Quality of Service (QoS)
Priorities” on page 5-21).
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.
Note: See “Enabling Source MAC Filtering (Address Filtering)” on page 5-28 for yet
another way to block outbound traffic from selected PCs that would otherwise be
allowed by the firewall.
Table 5-1. 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 list, you must define it using the Services screen
(see “Adding Customized Services” on page 5-19).
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.
Select Schedule Select the desired time schedule (Schedule1, Schedule2, or Schedule3) that will be used
by this rule.
• This pull-down menu gets activated only when “BLOCK by schedule, otherwise Allow”
or “ALLOW by schedule, otherwise Block” is selected as Action.
• Use a Schedule screen to configure the time schedules (see “Setting Schedules to
Block or Allow Specific Traffic” on page 5-24).