Siemens Gigaset-SE361 Router Manual PDF (Setup & Configuration Guide)

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54

Configuring the Advanced Settings

LAN configuration

You can use the LAN configuration to define an

IP address

for the Gigaset SE361 WLAN

and configure the DHCP server.

ì

Select

Advanced Settings

–

Local Network

.

Defining the private IP address for the Gigaset SE361 WLAN

On this screen you can change the device's

IP address

. The default IP address is

192.168.2.1. This is the Gigaset SE361 WLAN's

Private IP address

. It is the address under

which the device can be reached on the local network. The address can be freely

assigned from the block of available addresses. The IP address under which the Gigaset

SE361 WLAN can be reached from outside is assigned by the Internet Service Provider.

ì

If you want to assign the Gigaset SE361 WLAN a different IP address, enter it in the

fields next to

IP address

.

ì

Select a number from the

Subnet mask

list.

We recommend using an address from a block that is reserved for private use. This

address block is 192.168.1.1 – 192.168.255.254.

Note:

New settings only take effect after rebooting the Gigaset SE361 WLAN. If neces-

sary, reconfigure the IP address on your PC (including one that is statically

assigned) so that it matches the new configuration.

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55

Configuring the Advanced Settings

Configuring the DHCP server

The Gigaset SE361 WLAN has a

DHCP server

, which is enabled on delivery. As a result,

the IP addresses of the PCs are automatically assigned by the Gigaset SE361 WLAN.

ì

To activate the DHCP server, select

On

.

ì

If the DHCP server is active, you can define a

Lease time

. The

Lease time

determines

the period for which the PCs keep the IP addresses assigned to them without any

change.

ì

Define the range of IP addresses which the Gigaset SE361 WLAN should use to auto-

matically assign IP addresses to PCs. Define the

First issued IP address

and the

Last

issued IP address

.

ì

You can define the name of a domain (Windows workgroup) in the

Domain name

field.

Assigning static IP addresses to individual PCs

Even if you have activated the DHCP server you can still assign a static IP address to indi-

vidual PCs (e.g. when setting up these PCs for NAT functions).

ì

Enter the

MAC address

and the name of the PC in the

Device name

field.

ì

Enter the

IP address

you wish to assign to the PC in the field below.

ì

Click on

Add

to add the entry to the list.

ì

Click on

Delete

to delete the entry from the list.

ì

Click on

OK

to apply the settings.

Note:

u

If the Gigaset SE361 WLAN's DHCP server is activated, you can configure the net-

work setting on the PC so that the option

Obtain an IP address automatically

is

set. To find out how to do this, please read the section entitled

"Configuring the local network" on page 76.

u

If you deactivate the DHCP server, you will have to assign a static IP address for the

PCs via the network settings.

Note:

If you select the

Never expires

option, the IP addresses are never changed. You

must select this option if you want to make NAT or firewall settings using the IP

addresses of the PCs, or else you must assign these PCs static IP addresses.

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56

Configuring the Advanced Settings

Configuration for wireless connections

If PCs communicate wirelessly via the Gigaset SE361 WLAN, you should take steps to

enhance the security of your wireless network. You make this configuration via the

Advanced Settings

–

Wireless Network

menu. Here you can

u

activate the Gigaset SE361 WLAN's wireless module (see below),

u

set the channel and

SSID

(see page 56),

u

set

Encryption

for wireless traffic (see page 58),

u

restrict access to the Gigaset SE361 WLAN's LAN (see page 58),

u

configure the Gigaset SE361 WLAN's repeater function (see page 62).

ì

In the

Advanced Settings

menu, select

Wireless Network

.

ì

Select the

On

option for

Wireless Network

(default setting).

Devices can only log in wirelessly if the Gigaset SE361 WLAN's wireless module is

activated.

You can now make the settings for your wireless network.

Transmission mode

The Transmission mode defines which

IEEE

standard you use to transmit data in your

network. IEEE 802.11g permits data transfer up to 54 Mbps, IEEE 802.11b up to

11 Mbps.

For the best possible data transfer rates in your network select

IEEE 802.11g only

. You

can use this mode if the PC has the appropriate network adapter and there are no other

WLAN adapters in the vicinity.

To operate clients that have older network adapters in your network, select

IEEE

802.11b/g (mixed)

. If you exclusively use older adapters select

IEEE 802.11b only

.

ì

Select the required Transmission mode for your wireless network.

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57

Configuring the Advanced Settings

SSID

For the wireless network components to communicate with each other, they must have

the same

SSID

(Service Set Identifier).

On delivery, the Gigaset SE361 WLAN's default SSID is

ConnectionPoint

. For security

reasons you should change this SSID and deactivate SSID broadcast (see below).

Enter a character string of your choice. The SSID is case sensitive. It can be up to

32 alphanumerical characters long.

Channel

All the clients in your network use the set radio channel for wireless data transfer. In the

case of potential interferences caused by other 2.4 GHz devices in the neighbourhood,

you can choose between various channels.

ì

Select the channel to be used for transmitting the data.

SSID broadcast

If this option is enabled (default setting), the Gigaset SE361 WLAN will send the SSID

will be sent with all data transmissions, and your Gigaset SE361 WLAN's SSID will be dis-

played on PCs that have a wireless network adapter. In this case, eavesdroppers could

use the SSID to gain access to your local network.

If you disable

SSID broadcast

, your Gigaset SE361 WLAN's SSID will not be displayed.

This increases protection against unauthorised access to your wireless network. How-

ever, you must make a note of the SSID. You will need it to log on your PC.

ì

Select the

Off

option to deactivate

SSID broadcast

.

Sending power

ì

Select the required sending power for your device.

We recommend that you select a sending power with a range to suit the spatial environ-

ment of your local network. A range that is much greater makes it easier to eavesdrop

on your wireless data transmission.

Network performance

You can optimise Network performance in the following ways:

u

Optimize throughput

maximises the data transmission rate in your network and ensures that data traffic

is transmitted immediately.

u

Optimize power saving

optimises power consumption in order to extend standby times for mobile devices

in your network, e.g. notebooks, PDAs and WLAN handsets.

Note:

The connection to the wireless network adapters will be interrupted until you enter

the new SSID on them as well.

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58

Configuring the Advanced Settings

u

Custom

This allows you to adjust the Network performance to suit your needs on the basis

of the following items:

–

Beacon interval

defines the interval between two

Beacons

.

Measured in milliseconds, default = 100 msecs.

–

DTIM interval

defines the interval between two

DTIMs

for devices in power-sav-

ing mode.

Measured in number of beacons, default = 2 beacons.

ì

Choose the desired

Network performance

.

Setting wireless security

If you send data over wireless channels, we recommend that you activate encryption

(

WEP

or

WPA

) on your wireless network components.

WPA

is a more advanced procedure than WEP for protecting wireless networks. Dynamic

keys based on TKIP (Temporal Key Integration Protocol) offer increased security. The

new WPA2 standard is based on AES. We therefore recommend that you choose WPA2

or WPA encryption if it is supported by all components in your wireless network.

ì

In the

Wireless Network

menu, select

Encryption

.

The following security mechanisms are currently available:

u

WPA2-PSK and WPA2-PSK / WPA-PSK (see page 58)

u

WEP encryption (Wired Equivalent Privacy), (see page 59)

WPA2-PSK and WPA2-PSK / WPA-PSK

WPA with Pre-shared Key (WPA-PSK)

WPA-PSK

is a special WPA mode that provides encryption protection for users at home

and in small companies without a company authentication server. Encryption keys are

automatically generated with the Pre-shared Key, and automatically changed (rekeying)

and authenticated between the devices after a certain period of time (

Rekey interval

).

Which standard of encryption you can choose depends on the components in your wire-

less network. Every PC (network adapter) that requires access to a wireless network pro-

tected by WPA must also support WPA. To find out whether and how you can use WPA

on your PC, read your network adapter's operating instructions. If all components sup-

port WPA2, select the

WPA2-PSK

option. If you are using network adapters that only

support WPA, select the

WPA2-PSK / WPA-PSK

option. The entries described below are

the same for both options.

ì

Select the required option in the

Security

field.

Note:

If WDS is enabled (see page 62) only WEP is available as encryption method.

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