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

•

Wireless Setup

•

WAN Setup

•

LAN Setup

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

•

Security

. See

Chapter 4, Security

.

•

Administration

. See

Chapter 5, Administration

.

•

Advanced Setup

. See

Chapter 6, Advanced Settings

.

NETGEAR genie Advanced Home

22

WiFi Cable Modem Router C3700

Internet Setup

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



To change the Internet settings:

1.

From the Advanced tab, select

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.

Internet Setup Screen Fields

The following descriptions explain all of the possible fields in the Internet Setup screen.

Internet IP Address

.

•

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

Get

Dynamically from ISP

.

•

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

information. Select

Use Static IP Address

and type the IP address, IP subnet mask, and

gateway IP address in the correct fields.

For example:

-

IP Address. 24.218.156.183

-

Subnet Mask. 255.255.255.0

-

Gateway IP Address. 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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23

WiFi Cable Modem Router C3700

•

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

Use These DNS Servers

and

type the primary and secondary addresses.

•

Otherwise, select

Get Automatically from ISP

.

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.

Wireless Setup

For information about the fields on this screen, see

View or Configure Your Wireless Network

on page

16.

WAN Setup

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

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



To change the WAN settings:

From the Advanced tab, select

Setup > WAN Setup

.

The following screen displays:

•

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

NETGEAR genie Advanced Home

24

WiFi Cable Modem Router C3700

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

should be disabled only in special circumstances.

•

Default DMZ Server

. This feature is sometimes helpful when you are playing online

games or videoconferencing. Be careful when using this feature, it makes the firewall

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

some online games and videoconferencing applications that are incompatible with

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.

•

Respond to Ping on Internet Port

. If you want the modem router 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 modem router 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 running certain applications. To enable

SIP/ALG and optimize VoIP phone calls that use the SIP, uncheck the check box.

The default DMZ server feature is helpful when you are using some online games and

videoconferencing applications that are incompatible with Network Address Translation

(NAT). The modem router 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.

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 modem router 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.

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25

WiFi Cable Modem Router C3700

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 modem router 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 modem router is:

•

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.



To change the LAN settings:

Note:

If you change the LAN IP address of the modem router while

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

connection to the new IP address and log in again.

1.

From the Advanced tab, select

Setup > LAN Setup

.

The following screen displays:

2.

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

section,

LAN Setup Screen Fields

.

3.

Click the

Apply

button.

4.

Your changes are saved.