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34

Setting up DMZ host

The function of DMZ is similar to that of virtual server. The difference between vitual

server and DMZ is that DMZ opens all ports to WAN while virtual server opens ports

according to the demand of the enabled services. To configure DMZ host:

1. Click

Advanced Setup -> NAT -> DMZ Host

in the left side menu to open the

configuration page.

2.

Enter the IP address of the host to be setup as DMZ host.

3. Press

Save/Apply

to activate the settings.

Allowing SIP request through NAT

NAT checks IP header only and translate the information into private IP address.

However, for applications that demand many dynamic ports for session control such as

Session Initiation Protocol (SIP), traditional NAT cannot translate the address because

lack of preset service ports. To enable such services while at the same time do not

sacrifice network security, DSL-N13 introduces Application Layer Gateway (ALG) to

allow SIP request going through fireware and NAT from WAN. To configure ALG:

1. Click

Advanced Setup -> NAT -> ALG

in the left side menu to open the

configuration page.

2. Select

SIP Enabled

checkbox to allow SIP request, or uncheck to disable.

3. Press

Save/Apply

to save and activate the settings.

Firewall - Outgoing IP filter

By default, all outbound IP traffic is allowed. You can block certain types of IP traffic by

setting up filter rules at DSL-N13.

1. Click

Advanced Setup -> Security -> IP Filtering -> Outgoing

in the left side

menu to open the configuration page. Click

Add

to create a new rule.

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35

2.

Define a

Filter Name

for the filter rule. Specify protocol, source IP address, subnet

mask and port (range) and destination IP address, subnet mask and port (range).

3. Press

Save/Apply

to save and activate the settings.

Firewall- Incoming IP filter

By default, all incoming IP traffic is blocked. You can allow certain types of IP traffic by

setting up filter rules at DSL-N13.

1. Click

Advanced Setup -> Security -> IP Filtering -> Incoming

in the left side

menu to open the configuration page. Click

Add

to create a new rule.

2.

Define a

Filter Name

for the filter rule. Specify protocol, source IP address, subnet

mask and port (range) and destinationi IP address, submask and port (range).

3.

Select the WAN interface through which the packets enter the firewall.

4. Press

Save/Apply

to save and activate the settings.

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36

Access time restriction

This function enables to put time restriction on Internet access by setting up blocking

time table. To configure the access time restriction:

1. Click

Advanced Setup -> Security -> Parental Control

in the left side menu to

open the configuration page. Click

Add

to create a new rule.

2.

Fill in the User name to whom you want to apply the restriction.

3.

Fill in the MAC address of the restricted host. If you are accessing this configuration

at the computer of restricted host, select Browser's MAC Address radio button. The

system automatically detects the MAC address of the configuration console. If you

want to configure hosts other than the console computer, enter the MAC address

manually.

To get the MAC address of a host, click

Start

menu on the desktop of

the host, select

Run...

, type

cmd

into the box and press

OK

, then type

command

ipconfig /all

and press enter. You can find the MAC address

displayed as

Physical Address

.

4.

Select the days of a week to which the rule shall apply.

5.

Fill time into the

Start Blocking Time

and

End Blocking Time

box to set up block

time.

6. Press

Save/Apply

to save and activate the settings.

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37

This chapter shows how to configure other advanced router features of DSL-N13.

WAN

Click Advanced Setup -> WAN in the left side menu to enter the WAN setup page. This

page allows you to edit the WAN settings.

LAN

1. Click

Advanced Setup -> LAN

in the left side menu to enter the

Local Area Network

(LAN) Setup

page. This page allows to change the IP address and subnet mask of

the router, enables or disables UPnP, IGMP snooping and DHCP server.

The default settings are:

•

IP Address:

192.168.1.1

•

Subnet mask:

255.255.255.0

•

Enable UPnP:

Yes

•

Enable IGMP Snooping: No

•

Enable DHCP Server:

Yes

Start IP Address: 192.168.1.2

End IP Address:

192.168.1.254

Lease Time (hour):

24

DHCP server is enabled by default. You can define which addresses to be assigned to

the LAN computers by DHCP server.

2. Press

Save

to save the configurations and go on setting up other features. If all

settings are complete, press

Save/ Reboot

to apply the settings and reboot DSL-N13.

Advanced settings

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38

Setting up DNS server

Domain Name System (DNS) server is used to translate IP addresses into easy-to-

remember domain names, such as www.asus.com, and vice versa.

Click A

dvanced Setup -> DNS -> DNS Server

to open the DNS server configuration

page. By default, the DNS server is set to automatically accept the DNS server assigned

by ISP. If your ISP specifies certain DNS server addresses, uncheck

Enable Automatic

Assigned DNS

checkbox and type the DNS addresses into the

Primary DNS server

box and

Secondary DNS server

box (if any). Click

Save

to save the settings.

Setting up dynamic DNS

Hosts using dynamic IP addresses can associate with a domain name via Dynamic

DNS (DDNS). To use DDNS function, you need first register at a dynamic DNS service

provider, such as DDNS, to get a valid account.

DDNS acount request procedures

1. Type

www.DynDNS.

org

to the address box

of your Web browser

and press

Enter

.

Read the policy and

select "

I have read...

".

2. E n t e r y o u r u s e r

name, e-mail address,

password, then click

Create Account

.