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Page 26 / 95 Scroll up to view Page 21 - 25
19
Chapter 5: Configuring the Gateway
The Setup Tab
Wireless-G ADSL Gateway
•
MTU. The MTU (Maximum Transmission Unit) setting specifies the largest packet size permitted for network
transmission. Select
Manual
and enter the value desired. It is recommended that you leave this value in the
1200 to 1500 range. By default, MTU is configured automatically.
Network Setup
•
Router IP. The values for the Gateway’s Local IP Address and Subnet Mask are shown here. In most cases,
keeping the default values will work.
•
Local IP Address. The default value is 192.168.1.1.
•
Subnet Mask. The default value is 255.255.255.0.
•
Network Address Server Settings (DHCP). A Dynamic Host Configuration Protocol (DHCP) server automatically
assigns an IP address to each computer on your network for you. Unless you already have one, it is highly
recommended that you leave the Gateway enabled as a DHCP server.
•
Local DHCP Server. DHCP is already enabled by factory default. If you already have a DHCP server on your
network, set the Gateway’s DHCP option to
Disable
.
•
Starting IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. This value
must be 192.168.1. 2 or greater, because the default IP address for the Gateway is 192.168.1.1.
•
Number of Address. Enter the maximum number of computers that you want the DHCP server to assign IP
addresses to. This number cannot be greater than 253. By default, as shown in Figure 5-9, the range is
192.168.1.100 to 192.168.1.149.
•
DHCP Address Range. The range of DHCP addresses is displayed here.
•
Client Lease Time. Enter the minutes in the field.
•
Time Setting. This is where you set the time zone for your Gateway.
When finished making your changes on this tab, click the
Save Settings
button to save these changes, or click
the
Cancel Changes
button to undo your changes.
Figure 5-9: Optional Settings
Page 27 / 95
20
Chapter 5: Configuring the Gateway
The Setup Tab
Wireless-G ADSL Gateway
The DDNS Tab
The Gateway offers a Dynamic Domain Name System (DDNS) feature. DDNS lets you assign a fixed host and
domain name to a dynamic Internet IP address. It is useful when you are hosting your own website, FTP server, or
other server behind the Gateway.
Before you can use this feature, you need to sign up for DDNS service at DynDNS.org.
DDNS
DDNS Service. If your DDNS service is provided by DynDNS.org, then select
DynDNS.org
in the drop-down menu.
(See Figure 5-10.) To disable DDNS Service, select
Disabled
.
DynDNS.org
•
User Name, Password, and Host Name. Enter the User Name, Password, and Host Name of the account you
set up with DynDNS.org.
•
Internet IP Address. The Gateway’s current Internet IP Address is displayed here. Because it is dynamic, it will
change.
•
Status. The status of the DDNS service connection is displayed here.
When finished making your changes on this tab, click the
Save Settings
button to save these changes, or click
the
Cancel Changes
button to undo your changes.
Figure 5-10: DynDNS.org
Page 28 / 95
21
Chapter 5: Configuring the Gateway
The Setup Tab
Wireless-G ADSL Gateway
Advanced Routing Tab
The Advanced Routing screen allows you to configure the dynamic routing and static routing settings. (See Figure
5-11.)
Advanced Routing
•
Dynamic Routing. With Dynamic Routing you can enable the Gateway to automatically adjust to physical
changes in the network’s layout. The Gateway, using the RIP protocol, determines the network packets’ route
based on the fewest number of hops between the source and the destination. The RIP protocol regularly
broadcasts routing information to other Gateways on the network. To enable RIP, click
Enabled
. To disable
RIP, click
Disabled
.
•
Receive RIP Version. To receive RIP messages, select the protocol you want:
RIP1
or
RIP2
. If you don’t want
to receive RIP messages, select
None
.
•
Transmit RIP Version. To transmit RIP messages, select the protocol you want:
RIP1, RIP1-Compatible, or
RIP2
. If you don’t want to transmit RIP messages, select
None
.
Static Routing
If the Gateway is connected to more than one network, it may be necessary to set up a static route between
them. A static route is a pre-determined pathway that network information must travel to reach a specific host or
network. To create a static route, change the following settings:
•
Select Entry. Select the number of the static route from the drop-down menu. The Gateway supports up to 20
static route entries. If you need to delete a route, after selecting the entry, click the
Delete Entry
button.
•
Destination IP Address. The Destination IP Address is the address of the remote network or host to which you
want to assign a static route. Enter the IP address of the host for which you wish to create a static route. If
you are building a route to an entire network, be sure that the network portion of the IP address is set to 0.
•
Subnet Mask. The Subnet Mask (also known as the Network Mask) determines which portion of an IP address
is the network portion, and which portion is the host portion.
•
Gateway. This IP address should be the IP address of the gateway device that allows for contact between the
Gateway and the remote network or host.
•
Hop Count. This determines the maximum number of steps between network nodes that data packets will
travel. A node is any router in the path to the remote network.
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Page 29 / 95
22
Chapter 5: Configuring the Gateway
The Setup Tab
Wireless-G ADSL Gateway
•
Interface. Select
LAN
& Wireless
or
Internet
, depending on the location of the static route’s final destination.
•
Show Routing Table. Click the
Show Routing Table
button to open a screen (see Figure 5-12) displaying how
data is routed through your LAN. For each route, the Destination IP address, Subnet Mask, Gateway, and
Interface are displayed. Click the
Refresh
button to update the information.
When finished making your changes on this tab, click the
Save Settings
button to save these changes, or click
the
Cancel Changes
button to undo your changes.
Figure 5-12: Routing Table
Page 30 / 95
23
Chapter 5: Configuring the Gateway
The Wireless Tab
Wireless-G ADSL Gateway
The Wireless Tab
Basic Wireless Settings
(See Figure 5-13.)
This screen allows you to choose your wireless network mode and wireless security.
Wireless Network
•
Wireless Network Mode. If you have 802.11g and 802.11b devices in your network, then keep the default
setting,
Mixed
. If you have only 802.11g devices, select
802.11g
. If you have only 802.11b devices, select
802.11b
. If you want to disable wireless networking, select
Disabled
.
•
Wireless Network Name (SSID). Enter the name for your wireless network into the field. The SSID is the
network name shared among all devices in a wireless network. The SSID must be identical for all devices in
the wireless network. It is case-sensitive and must not exceed 32 alphanumeric characters, which may be
any keyboard character. Linksys recommends that you change the default SSID (linksys) to a unique name of
your choice.
•
Wireless Channel. Select the appropriate channel from the list provided to correspond with your network
settings, between 1 and 13 (most of Europe). All devices in your wireless network must use the same channel
in order to function correctly. Linksys wireless clients will automatically detect the wireless channel of the
Gateway.
Wireless Security
•
Wireless SSID Broadcast. When wireless clients survey the local area for wireless networks to associate with,
they will detect the SSID broadcast by the Gateway. To broadcast the Gateway's SSID, keep the default
setting,
Enabled
. If you do not want to broadcast the Gateway's SSID, then select
Disabled
.
•
WEP Encryption Level. An acronym for Wired Equivalent Privacy, WEP is an encryption method used to protect
your wireless data communications. WEP uses 64-bit or 128-bit keys to provide access control to your
network and encryption security for every data transmission. To decode data transmissions, all devices in a
network must use an identical WEP key. Higher encryption levels offer higher levels of security, but due to the
complexity of the encryption, they may decrease network performance. To enable WEP, select
64 bits (10
hex digits)
(see Figure 5-13) or
128 bits (26 hex digits)
(see Figure 5-14). To disable WEP encryption, keep
the default setting,
No Encryption
.
•
Passphrase for keys. Instead of manually entering WEP keys, you can enter a passphrase. This passphrase is
used to generate one or more WEP keys. It is case-sensitive and should not be longer than 16 alphanumeric
characters. (This Passphrase function is compatible with Linksys wireless products only and cannot be used
Figure 5-14: 128-Bit WEP Encryption
Figure 5-13: 64-Bit WEP Encryption

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