Quick Reference Guide

ProSafe VPN Firewall 50 FVS338 Reference Manual
4-14 Firewall Protection and Content Filtering
v1.0, January 2010
2. Place the rule below all other inbound rules.
Figure 4-7 shows the bottom part of the LAN WAN Rules screen with an example of the Inbound
Services table.
Outbound Rules Example: Blocking Instant Messenger
Outbound rules let you prevent users from using applications such as Instant Messenger, Real
Audio, or other non-essential sites.
If you want to block Instant Messenger usage by employees during working hours, you can create
an outbound rule to block that application from any internal IP address to any external address
according to the schedule that you have created on the Schedule screen. You can also have the
VPN firewall log any attempt to use Instant Messenger during that blocked period. See Figure 4-8
on page 4-15.
Note: For security, NETGEAR strongly recommends that you avoid creating an exposed
host. When a computer is designated as the exposed host, it loses much of the
protection of the firewall and is exposed to many exploits from the Internet. If
compromised, the computer can be used to attack your network.
Figure 4-7
1. Select All protocols and ALLOW Always (or Allow by Schedule)
2. Place rule below all other inbound rules