Home Network Tab

31

•

Wireless Mode.

Allows you to force the gateway to use 802.11b/g, 802.11b-only, or 802.11g-only

modes of operation.

Note:

This field displays only for 802.11b/g based models.

•

DTIM Period (seconds).

Determines at which interval the access point will send its broadcast traffic.

The default value is 4 seconds.

•

Maximum Connection Rate.

The maximum rate at which your wireless connection works (1, 2, 5.5, 11,

or 22 Mbps for 802.11b-based models; 1, 2, 5.5, 11, 6, 9, 12, 24, 36, 48, or 54 Mbps for 802.11b/

g-based models).

•

Power Setting.

Allows you to select the power level for your wireless connection. The default list is 1 to

4; additional options may appear based on the service provider’s configuration.

If you have customized your wireless system configuration, you can restore the wireless settings to factory

defaults by clicking the

RESTORE DEFAULTS

button.

Configuring Advanced Settings

The Edit Advanced Home Network Settings page displays the current IP settings in use by your system for

your home network, and allows you to configure your home network settings. You should adjust these

settings

ONLY

if you are very familiar with computer networking technologies.

The Current Settings panel shows the following information:

•

Router Address.

The IP address used by your system on the private home network (the default is

192.168.1.254). The system has two IP addresses: a private address that it uses on the home

network, and one that is used on the public broadband connection on the Internet. You can change the

home network IP address by changing the home network IP address range.

•

Subnet Mask.

The subnet mask is determined by the home network IP address range settings (the

default is 255.255.255.0).

•

DHCP Range.

The range of IP addresses used by your system (the default is 192.168.1.64 through

192.168.1.253). IP addresses can be either static (permanently assigned) or dynamic (automatic and

temporary).

Setting up a Private Network

By default, the 2Wire gateway uses the 192.168.1.0/255.255.0.0 IP address range. You can select from

two additional IP address ranges, or configure the network settings manually. You should manually configure

these settings

ONLY

if you thoroughly understand IP internetworking, because an incorrect configuration can

cause unpredictable results.

To set up a private network:

•

Open a Web browser and access the 2Wire gateway user interface by entering

•

Click the

Home Network

tab.

Home Network Tab

32

•

Click the Advanced Settings

link under the tab to open the Edit Advanced Home Network Settings page.

Figure 14. Advanced Home Network Settings Page

Home Network Tab

33

1.

Click the radio button that corresponds to the IP address range you wish to use.

If you select the 172.16.0.0 / 255.255.0.0 or 10.0.0.0 / 255.255.0.0 range, continue to step 5. If

you select

Configure manually

, continue to step 2.

2.

In the Router Address field, enter the IP address used by your system on the private home network.

3.

In the Subnet Mask field, enter the subnet mask. The subnet mask is determined by the home network

IP address range settings.

4.

Click the Enable DHCP checkbox.

a.

In the First DHCP Address field, enter the first DHCP address that you’ll be distributing over the

private network.

b.

In the Last DHCP Address field, enter the last DHCP address that you’ll be distributing over the

private network.

c.

In the Set DHCP Lease Time field, enter a value for the number of hours before the DHCP lease

expires.

5.

Click

SAVE

.

Setting Up a Public Routed Subinterface

The Public Routed Subinterface pane allows you to create a local network that has broadband network-

accessible IP addresses by creating a route from the Internet to the specified public network. The public

network operates without Network Address Translation (NAT). This feature is typically used in conjunction

with broadband service that provides a range of available IP addresses. Once enabled, the public IP

addresses can be assigned to local computers.

To set up a Public Routed Subinterface network:

1.

Check the

Enable

checkbox.

2.

In the Router Address field, enter the router address (this is typically provided by your service provider).

3.

In the Subnet Mask field, enter the subnet mask (this is typically provided by your service provider).

4.

(Optional) To open all firewall ports, check the

Auto Firewall Open

checkbox. (By default, your firewall

protection is enabled.)

5.

Click

SAVE

.

Note:

If you change the home network IP address range, you must renew the DHCP lease on

all devices on your home network and manually reconfigure all devices configured with static IP

addresses. If you are using the 2Wire Network Support Tool, you can renew the DHCP lease by

selecting “Refresh Network Connection” in the Network Support Tool menu.

Home Network Tab

34

Setting Up a Public Proxied Subnet

The Public Proxied Subnet pane allows you to create a local network that has broadband-accessible IP

addresses. Public Proxied Subnet is a public network in which the local network is an extension of the

broadband network and does not require any special routing. Computers that are assigned Public Proxied

Subnet IP addresses operate without Network Address Translation (NAT). This feature is typically used in

conjunction with broadband service that provides a range of IP addresses. Once enabled, the Public Proxied

Subnet IP addresses can be assigned to local computers.

To set up a public proxied subnet:

1.

Check the

Enable

checkbox.

2.

In the Subnet Mask field, enter the subnet mask (this is typically provided by your service provider, and

defines how large your IP pool is).

3.

(Optional) To open all firewall ports, check the

Auto Firewall Open

checkbox. (By default, your firewall

protection is enabled.)

4.

Click

SAVE

.

Selecting a Default DHCP Pool

By default, all devices on the home network that use dynamic (non-static) IP addresses receive these from

the Private Network DHCP pool. When either Public Routed Subinterface or Public Proxied Subnet is

enabled, click the

Default DHCP Pool

radio button in the corresponding section to have devices receive their

IP addresses from those pools.

Showing a Device as Inactive

To show a device as Inactive:

1.

Open a Web browser and access the 2Wire gateway user interface.

2.

Click the

Home Network

tab.

3.

Click the Advanced Settings

link under the tab.

4.

In the Settings pane, select the

Show inactive devices in network list

checkbox.

5.

Click

SAVE

.

35

Firewall Tab

This chapter describes the 2Wire gateway firewall features, and provides detailed instructions on how to

modify the firewall settings.

Firewall Features

The 2Wire gateway has a professional-grade firewall to help prevent unauthorized users from accessing

your local network. The 2Wire gateway firewall includes the following features:

Stateful packet inspection.

Blocks common Denial of Service attacks (such as SYN/FIN flooding or Smurf),

and detects and logs TCP and UDP port scans.

Stateless packet inspection.

Filters specific NetBios traffic, suspicious packets and IP fragments; blocks

packets sent from the private network to the Internet that have spoofed IP addresses.

Network Address Translation (NAT).

Translates a local network’s IP address to an external address

maintained by the 2Wire gateway, effectively “hiding” the existence of a home network to the Internet. The

2Wire gateway then uses this external address to communicate with the Internet on behalf of devices

connected to the local network.

Port Address Translation (PAT).

A function provided by some routers which allows hosts on a LAN to

communicate with the rest of a network (such as the Internet) without revealing their own private IP

address. All outbound packets have their IP address translated to the router’s external IP address. Replies

come back to the router, which then translates them back into the private IP address of the original host for

final delivery. During PAT, each computer on the LAN is translated to the same IP address, but with a

different port number assignment.

Inbound and outbound port blocking.

Blocks common inbound and outbound protocol types from passing

information to or receiving information from the Internet.