18
?
Note
: Before Remote Management can be activated, the administrator password must be
set. To do this, go to the Setup screen and select Change Admin Password. Follow the
instructions in the subsequent screens.
47 Chapter 4 Using Advanced Setup
Application Layer Gateway and Port Forwarding
Selecting
Application Layer Gateway
in the “Configuring the Advanced Settings” screen generates the
“Application-Level Gateway (
ALG
) and Port Forwarding” screen. Port forwarding allows certain programs
to bypass the Gateway’s built-in firewall, allowing access to parts of the network (for hosting a Web or ftp
server, for example). To use, select the host name of a computer on the network from the “
LAN
Device”
drop-down list (click the down arrow), then click
Add
. Next, select a “Category” by clicking the
appropriate radio button. In the “Available Rules” list box, select a game, application, server, etc., then
click
Add>>
. The selected item appears in the “Applied Rules” list box. Repeat for each item neededTo
remove an item from the Applied Rules list, highlight it, then click
Remove
.To view an item’s rules
(forwarded ports, etc.), highlight it, then click
View Rule.
To create a custom set of rules, click the “User” radio button, then click
New
. The “Rule Management”
screen appears.
48 Actiontec 54 Mbps Wireless DSL Gateway User Manual
In this screen, the user can create a custom set of rules for a game or application not listed in the
Application Level Gateway screen. Enter the “Rule Name,” “Protocol,” “Port Start,” “Port End,” and “Port
Map” in the appropriate text boxes, then click
Apply
. The rules are summarized at the bottom of the screen,
and the rule set will appear in the Application Level Gateway screen after clicking
Back
.
DMZ Hosting
Selecting
DMZ
Hosting
in the “Configuring the Advanced Settings” screen generates the “
DMZ
Hosting”
screen. To use
DMZ
hosting, enter the
IP
address of the computer on the network to be used as a
DMZ
host
in the “
DMZ
Host
IP
Address” text box, then click
On
.
DMZ
hosting is used to support online gaming and Internet conferencing services. These programs usually
require multiple open ports, making the network accessible from the Internet.
DMZ
hosting symbolically
places the
DMZ
host computer outside of the Gateway’s network. Actiontec recommends activating
DMZ
hosting only as long as necessary.
M
Warning
: The
DMZ
Host computer will be vulnerable to computer hackers on the
Internet while in
DMZ
mode.
49 Chapter 4 Using Advanced Setup
Firewall
Selecting
Firewall
in the “Configuring the Advanced Settings” screen generates the “Firewall Security
Level” screen. Select the level of security needed for the network.
High
If
High
is selected in the “Firewall Security Level” screen, the services listed at the bottom of the screen
(
HTTP
,
FTP
,
POP3
,
SMTP
,
IMAP
,
IMAP
v
3
,
DNS
,
IPSEC IKE
,
IPSEC ESP
,
HTTPS
, and
NNTP
) are the only
ones allowed to pass through the firewall. All other services will be blocked.
50 Actiontec 54 Mbps Wireless DSL Gateway User Manual
