Zyxel NBG334W Router Manual PDF (Setup & Configuration Guide)

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Appendix D Setting up Your Computer’s IP Address

NBG334W User’s Guide

261

"

Make sure you are logged in as the root administrator.

Using the K Desktop Environment (KDE)

Follow the steps below to configure your computer IP address using the KDE.

1

Click the Red Hat button (located on the bottom left corner), select

System Setting

and

click

Network

.

Figure 159

Red Hat 9.0: KDE: Network Configuration: Devices

2

Double-click on the profile of the network card you wish to configure. The

Ethernet

Device General

screen displays as shown.

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262

Figure 160

Red Hat 9.0: KDE: Ethernet Device: General

•

If you have a dynamic IP address click

Automatically obtain IP address settings

with

and select

dhcp

from the drop down list.

•

If you have a static IP address click

Statically set IP Addresses

and fill in the

Address

,

Subnet mask

, and

Default Gateway Address

fields.

3

Click

OK

to save the changes and close the

Ethernet Device General

screen.

4

If you know your DNS server IP address(es), click the

DNS

tab in the

Network

Configuration

screen. Enter the DNS server information in the fields provided.

Figure 161

Red Hat 9.0: KDE: Network Configuration: DNS

5

Click the

Devices

tab.

6

Click the

Activate

button to apply the changes. The following screen displays. Click

Yes

to save the changes in all screens.

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Figure 162

Red Hat 9.0: KDE: Network Configuration: Activate

7

After the network card restart process is complete, make sure the

Status

is

Active

in the

Network Configuration

screen.

Using Configuration Files

Follow the steps below to edit the network configuration files and set your computer IP

address.

1

Assuming that you have only one network card on the computer, locate the

ifconfig-

eth0

configuration file (where

eth0

is the name of the Ethernet card). Open the

configuration file with any plain text editor.

•

If you have a dynamic IP address, enter

dhcp

in the

BOOTPROTO=

field. The following

figure shows an example.

Figure 163

Red Hat 9.0: Dynamic IP Address Setting in ifconfig-eth0

•

If you have a static IP address, enter

static

in the

BOOTPROTO=

field. Type

IPADDR

= followed by the IP address (in dotted decimal notation) and type

NETMASK

=

followed by the subnet mask. The following example shows an example where the

static IP address is 192.168.1.10 and the subnet mask is 255.255.255.0.

Figure 164

Red Hat 9.0: Static IP Address Setting in ifconfig-eth0

DEVICE=eth0

ONBOOT=yes

BOOTPROTO=dhcp

USERCTL=no

PEERDNS=yes

TYPE=Ethernet

DEVICE=eth0

ONBOOT=yes

BOOTPROTO=static

IPADDR=

192.168.1.10

NETMASK=

255.255.255.0

USERCTL=no

PEERDNS=yes

TYPE=Ethernet

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2

If you know your DNS server IP address(es), enter the DNS server information in the

resolv.conf

file in the

/etc

directory. The following figure shows an example where

two DNS server IP addresses are specified.

Figure 165

Red Hat 9.0: DNS Settings in resolv.conf

3

After you edit and save the configuration files, you must restart the network card.

Enter

./network restart

in the

/etc/rc.d/init.d

directory. The following

figure shows an example.

Figure 166

Red Hat 9.0: Restart Ethernet Card

25.6.1

Verifying Settings

Enter

ifconfig

in a terminal screen to check your TCP/IP properties.

Figure 167

Red Hat 9.0: Checking TCP/IP Properties

nameserver 172.23.5.1

nameserver 172.23.5.2

[root@localhost init.d]# network restart

Shutting down interface eth0:

[OK]

Shutting down loopback interface:

[OK]

Setting network parameters:

[OK]

Bringing up loopback interface:

[OK]

Bringing up interface eth0:

[OK]

[root@localhost]# ifconfig

eth0

Link encap:Ethernet

HWaddr 00:50:BA:72:5B:44

inet addr:172.23.19.129

Bcast:172.23.19.255

Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST

MTU:1500

Metric:1

RX packets:717 errors:0 dropped:0 overruns:0 frame:0

TX packets:13 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:100

RX bytes:730412 (713.2 Kb)

TX bytes:1570 (1.5 Kb)

Interrupt:10 Base address:0x1000

[root@localhost]#

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A

PPENDIX

E

Wireless LANs

Wireless LAN Topologies

This section discusses ad-hoc and infrastructure wireless LAN topologies.

Ad-hoc Wireless LAN Configuration

The simplest WLAN configuration is an independent (Ad-hoc) WLAN that connects a set of

computers with wireless stations (A, B, C). Any time two or more wireless adapters are within

range of each other, they can set up an independent network, which is commonly referred to as

an Ad-hoc network or Independent Basic Service Set (IBSS). The following diagram shows an

example of notebook computers using wireless adapters to form an Ad-hoc wireless LAN.

Figure 168

Peer-to-Peer Communication in an Ad-hoc Network

BSS

A Basic Service Set (BSS) exists when all communications between wireless stations or

between a wireless station and a wired network client go through one access point (AP).

Intra-BSS traffic is traffic between wireless stations in the BSS. When Intra-BSS is enabled,

wireless station A and B can access the wired network and communicate with each other.

When Intra-BSS is disabled, wireless station A and B can still access the wired network but

cannot communicate with each other.

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