Quick Reference Guide

Table Of Contents
Chapter 8: VPN Firewall and Network Management | 133
ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336Gv2 Reference Manual
Each rule lets you specify the desired action for the connections covered by the rule:
BLOCK always
BLOCK by schedule, otherwise Allow
ALLOW always
ALLOW by schedule, otherwise Block
As you define your firewall rules, you can further refine their application according to the
following criteria:
LAN Users. These settings determine which computers on your network are affected by
this rule. Select the desired options:
- Any. All PCs and devices on your LAN.
- Single address. The rule will be applied to the address of a particular PC.
- Address range. The rule is applied to a range of addresses.
- Groups. The rule is applied to a group (see “Managing Groups and Hosts (LAN
Groups)” on page 34 to assign PCs to a group using the LAN Groups Database).
WAN Users. These settings determine which Internet locations are covered by the rule,
based on their IP address.
- Any. The rule applies to all Internet IP address.
- Single address. The rule applies to a single Internet IP address.
- Address range. The rule is applied to a range of Internet IP addresses.
Services. You can specify the desired services or applications to be covered a rule. If the
desired service or application does not appear in the Custom Services Table, you must
define it using the Services screen (see “Adding Customized Services” on page 57).
Groups and Hosts. You can apply these rules selectively to groups of PCs to reduce the
outbound or inbound traffic. The LAN Groups Database is an automatically-maintained
list of all known PCs and network devices. PCs and devices become known by the
following methods:
- DHCP Client Request. By default, the DHCP server in this VPN firewall is enabled,
and will accept and respond to DHCP client requests from PCs and other network
devices. These requests also generate an entry in the LAN Groups Database.
Because of this, leaving the DHCP server feature (on the LAN Setup screen) enabled
is strongly recommended.
- Scanning the Network. The local network is scanned using ARP. requests. The ARP
scan will detect active devices that are not DHCP clients. However, sometimes the
name of the PC or device cannot be accurately determined, and will appear in the
database as Unknown.
- Manual Entry. You can manually enter information about a device.
See“Managing Groups and Hosts (LAN Groups)” on page 34 for the procedure on how to
use this feature.
Schedule. If you have set firewall rules on the LAN WAN Rules screen, you can
configure three different schedules (for example, schedule 1, schedule 2, and schedule