21

3

3.

NETGEAR genie ADVANCED Home

Specifying custom settings

This chapter explains the features available from the genie ADVANCED Home screen. This

chapter contains the following sections:

•

Internet Setup

•

WAN Setup

•

LAN Setup

Some selections on the ADVANCED Home screen are described in separate chapters:

•

Wireless Setup

. See

Chapter 2, Wireless Setup Screen Fields

.

•

Security

. See

Chapter 4, Security

.

•

Administration

. See

Chapter 5, Administration

.

•

Advanced Setup

. See

Chapter 6, Advanced Settings

.

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Internet Setup

The Internet Setup screen is where you view or change ISP information.



To change the Internet settings:

1.

Select

ADVANCED >

Setup > Internet Setup

.

2.

Enter the settings for the IP address and DNS server.

The default settings usually work fine. If you have problems with your connection, check

the ISP settings.

3.

Click the

Apply

button.

Your settings are saved.

The following descriptions explain the fields in the Internet Setup screen.

Internet IP Address

.

•

Get Dynamically from ISP.

If you log in to your service or your ISP did not provide you

with a fixed IP address, the gateway finds an IP address for you automatically when you

connect. Select this radio button.

•

Use Static IP Address.

If you have a fixed (or static) IP address, your ISP has provided

you with the required information. Select this radio button and type the IP address, IP

subnet mask, and gateway IP address in the correct fields.

For example:

-

IP Address

. Enter

24.218.156.183

.

-

Subnet Mask

. Enter

255.255.255.0

.

-

Gateway IP Address

. Enter

24.218.156.1

.

Domain Name Server (DNS) Address

. The DNS server is used to look up site addresses

that are based on their names.

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•

Use These DNS Servers

.

If your ISP gave you one or two DNS addresses, select this

radio button and type the primary and secondary addresses.

•

Get Automatically from ISP

.

Your ISP uses DHCP to assign your DNS servers. Your

ISP automatically assigns this address.

Note:

If you get address not found errors when you go to a website, it is

likely that your DNS servers are not set up correctly. Contact your

ISP to get the DNS server addresses.

WAN Setup

The WAN Setup screen lets you configure a DMZ (demilitarized zone) server and enable the

gateway to respond to a ping on the WAN (Internet) port.



To change the WAN settings:

1.

Select

ADVANCED > Setup > WAN Setup

.

The following screen displays:

2.

Configure the following settings:

•

Disable IPv4 Firewall Protection

. Firewalls protect your gateway and connected

devices from external attacks. The firewall is enabled by default.

•

Disable Port Scan and DoS Protection

. DoS protection protects your LAN against

denial of service attacks such as Syn flood, Smurf Attack, Ping of Death, Teardrop

Attack, UDP Flood, ARP Attack, Spoofing ICMP, Null Scan, and many others. Disable

this feature only in special circumstances.

•

Default DMZ Server

. The default DMZ server feature is helpful when you are using

some online games and videoconferencing applications that are incompatible with

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Network Address Translation (NAT). The gateway is programmed to recognize some

of these applications and to work correctly with them, but some applications do not

function well. In some cases, one local computer can run the application correctly if

the IP address of that computer is entered as the default DMZ server.

Be careful when using this feature becuase it makes the firewall security less

effective.

•

Respond to Ping on Internet Port

. If you want the gateway to respond to a ping

from the Internet, select this check box. Use this feature only as a diagnostic tool

because it also allows your gateway to be discovered. Do not select this check box

unless you have a specific reason.

•

MTU Size (in bytes)

. The normal MTU (maximum transmit unit) value for most

Ethernet networks is 1500 bytes, or 1492 bytes for PPPoE connections. For some

ISPs, you might need to reduce the MTU. Reduce the MTU only if you are sure that it

is necessary for your ISP connection.

•

Disable SIP/ALG

. The Session Initiation Protocol (SIP) Application Level Gateway

(ALG) is disabled by default, which is useful when you are running certain

applications. To enable SIP/ALG and optimize VoIP phone calls that use the SIP,

clear the check box.

WARNING:

DMZ servers pose a security risk. A computer that is designated

as the default DMZ server loses much of the protection of the

firewall and is exposed to exploits from the Internet. If

compromised, the DMZ server computer can be used to attack

other computers on your network.

The gateway discards incoming traffic from the Internet unless the traffic is a response to one

of your local computers or a service that you have configured in the Port Forwarding/Port

Triggering screen. Instead of discarding this traffic, you can have it forwarded to one

computer on your network. This computer is called the default DMZ server.



To set up a default DMZ server:

1.

On the WAN Setup screen, select the

Default DMZ Server

check box.

2.

Type the IP address.

3.

Click the

Apply

button.

LAN Setup

The LAN Setup screen allows you to configure LAN services such as the IP address of the

gateway and DHCP. The TCP/IP and DHCP default values work fine in most cases.

The gateway is shipped preconfigured to use private IP addresses on the LAN side and to act

as a DHCP server. The default LAN IP configuration of the gateway is:

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•

LAN IP address

. 192.168.0.1

•

Subnet mask

. 255.255.255.0

These addresses are part of the designated private address range for use in private networks

and are suitable for most applications. If your network requires you to use a different IP

addressing scheme, make those required changes in the LAN Setup screen.

Note:

If you change the LAN IP address of the gateway while connected

through the browser, you are disconnected. Open a new connection

to the new IP address and log in again.



To change the LAN settings:

1.

Select

ADVANCED > Setup > LAN Setup

.

The following screen displays:

2.

Enter the settings that you want to customize. These settings are described in the following

sections.

3.

Click the

Apply

button.

4.

Your changes are saved.