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Chapter 4: Configuring the Gateway
The Setup Tab
Wireless-G ADSL Gateway with 2 Phone Ports
Hop Count. Hop Count is the number of hops to each node until the destination is reached (16 hops
maximum). Enter the Hop Count in the field.
Show Routing Table. Click the
Show Routing Table
button to open a screen displaying how data is routed
through your network. For each route, the Destination IP address, Subnet Mask, Gateway, and Interface
are displayed. Click the
Refresh
button to update the information. Click the
Close
button to return to the
previous screen.
PVC Routing Policy
. PVC stands for "Permanent Virtual Circuit".
It is a virtual circuit link between two nodes for
ATM (Asynchronous Transfer Mode) network. Each PVC functions as a separate Internet connection. PVC settings
are for ADVANCED USERS ONLY. The PVC routing table allows you to select which traffic type to be forwarded to
which PVC. Click the
PVC Routing Setting
button to open the PVC Routing table.
Please select active connection. Select your active Internet connection from this pull-down menu.
Destination. Enter the destination Internet IP Address and Network Mask where this PVC will send data.
Source. Enter the source IP Address and Network Mask where this PVC will originate.
Source Mac. Enter the source MAC Address of the network PC where the data originates.
Protocol. Enter the data’s protocol, either TCP,UDP or ALL.
Dst Port. Enter the destination port number where this PVC will send data.
Src Port. Enter the source port number where this PVC will originate.
802.1D User Priority. This uses the 802.1D header requirement to set prioritization.
The number range is
0~7 depending on the type of services, with 7 having the highest priority.
802.3 Type/Length. Enter the Ethernet type for a specific protocol.
802.1Q Vlan ID. This is the ID for VLANs, from 0 ~ 4095
PacketLength. This is the total packet length of an IP packet, from 20byte~65535bytes.
DSCP. Enter the TOS (Type of Service) in the IP header here.
Possible values are 0x00 to 0x3f, the last two
Hex values are the variables.
Apply. Check this and click the
Save
button to apply your changes
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 4-14: Routing Table
Figure 4-15: PVC Selection Table
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28
Chapter 4: Configuring the Gateway
The Wireless Tab
Wireless-G ADSL Gateway with 2 Phone Ports
The Wireless Tab
Basic Wireless Settings Tab
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 11 (in North America). 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 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,
Enable
. If you do not want to broadcast the Gateway's SSID, then select
Disable
.
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 4-16: Wireless Tab - Wireless Network
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29
Chapter 4: Configuring the Gateway
The Wireless Tab
Wireless-G ADSL Gateway with 2 Phone Ports
Wireless Security Tab
The Gateway’s wireless security settings configure the security of your wireless network. There are three
wireless security mode options supported by the Gateway: WPA Pre-Shared Key, WPA RADIUS, and WEP. (WPA
stands for Wi-Fi Protected Access, which is a security standard stronger than WEP encryption. WEP stands for
Wired Equivalent Privacy, while RADIUS stands for Remote Authentication Dial-In User Service.) These are briefly
discussed here. For detailed instructions on configuring wireless security for the Gateway, turn to
Appendix B:
Wireless Security
. If you want to disable wireless security, select
Disable
from the drop-down menu for Security
Mode.
WPA Pre-Shared Key
. Enter a WPA Shared Key of 8-32 characters. Then, enter a Group Key Renewal period,
which instructs the Gateway how often it should change the encryption keys.
WPA RADIUS
. This option features WPA used in coordination with a RADIUS server. (This should only be used
when a RADIUS server is connected to the Gateway.) Enter the RADIUS server’s IP Address and port number,
along with a key shared between the Gateway and the server. Then, enter a Key Renewal Timeout, which
instructs the Gateway how often it should change the encryption keys.
Figure 4-17: Wireless Tab - Wireless Security
(WPA Pre-Shared Key)
Figure 4-18: Wireless Tab - Wireless Security
(WPA RADIUS)
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30
Chapter 4: Configuring the Gateway
The Wireless Tab
Wireless-G ADSL Gateway with 2 Phone Ports
WPA2 Professional
. WPA2 gives you two encryption methods, TKIP and AES, with dynamic encryption keys.
Select the type of algorithm, AES, or TKIP + AES. Enter a WPA2 Shared Key of 8-63 characters. Then enter a Group
Key Renewal period, which instructs the Router how often it should change the encryption keys.
WPA2 Enterprise
. This option features WPA2 used in coordination with a RADIUS server. (This should only be
used when a RADIUS server is connected to the Router.) First, select the type of WPA2 algorithm you want to use,
AES, or TKIP + AES. Enter the RADIUS server's IP Address and port number, along with a key shared between the
Router and the server. Last, enter a Key Renewal Timeout, which instructs the Router how often it should change
the encryption keys.
Figure 4-19: Wireless Tab - Wireless Security (WPA2
Professional)
Figure 4-20: Wireless Tab - Wireless Security (WPA2
Enterprise)
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31
Chapter 4: Configuring the Gateway
The Wireless Tab
Wireless-G ADSL Gateway with 2 Phone Ports
WEP
. WEP is a basic encryption method, which is not as secure as WPA. To use WEP, select a Default Key (choose
which Key to use), and a level of WEP encryption,
64 bits 10 hex digits
or
128 bits 26 hex digits
. Then either
generate a WEP key using a Passphrase or enter the WEP key manually.
WEP Encryption. 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)
or
128 bits (26 hex digits)
.
Default Transmit Key
Select which WEP key (1-4) will be used when the Gateway sends data. Make sure that
the receiving device (wireless client) is using the same key.
Passphrase. 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 32 alphanumeric
characters. (This Passphrase function is compatible with Linksys wireless products only and cannot be used
with Windows XP Zero Configuration. If you want to communicate with non-Linksys wireless products or
Windows XP Zero Configuration, make a note of the WEP key generated in the Key 1 field, and enter it
manually in the wireless client.) After you enter the Passphrase, click the
Generate
button to create WEP
keys.
WEP Keys 1-4. WEP keys enable you to create an encryption scheme for wireless network transmissions. If
you are not using a Passphrase, then manually enter a set of values. (Do not leave a key field blank, and do
not enter all zeroes; they are not valid key values.) If you are using 64-bit WEP encryption, the key must be
exactly 10 hexadecimal characters in length. If you are using 128-bit WEP encryption, the key must be exactly
26 hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and “A”-“F”.
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. For detailed instructions on configuring wireless security for
the Gateway, turn to
Appendix B: Wireless Security
.
Figure 4-21: Wireless Tab - Wireless Security (WEP)
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