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Configuring Network
Configuring IPv6
Cisco CVR100W Wireless-N VPN Router Administration Guide
64
3
STEP
4
Click
Save
.
IPv6 Prefix
If you choose
Global/Local
as the IPv6 prefix type,
enter the IPv6 prefix. The IPv6 prefix specifies the IPv6
network address.
IPv6 Prefix Length
If you choose
Global/Local
as the IPv6 prefix type,
enter the prefix length. The prefix length variable is a
decimal value that indicates the number of contiguous,
higher-order bits of the address that make up the net-
work portion of the address.
Prefix Lifetime
Enter the prefix lifetime, or the length of time over
which the requesting router is allowed to use the pre-
fix.
Page 67 / 150
4
Cisco CVR100W Wireless-N VPN Router Administration Guide
65
Configuring Wireless Network
This chapter describes how to configure your wireless network. It includes the
following sections:
•
Wireless Security
•
CVR100W Wireless Networks
•
Configuring Basic Wireless Settings
•
Configuring Advanced Wireless Settings
•
Configuring WDS
•
Configuring WPS
Wireless Security
Wireless networks are convenient and easy-to-install, so small businesses and
homes with high-speed Internet access are adopting them at a rapid pace.
Because wireless networking operates by sending information over radio waves,
it can be more vulnerable to intruders than a traditional wired network.
Wireless Security Tips
You cannot physically prevent someone from connecting to your wireless
network, but you can take the following steps to keep your network secure:
•
Change the default wireless network name or SSID.
Wireless devices have a default wireless network name or SSID. This is the
name of your wireless network, and can be up to 32 characters in length.
Page 68 / 150
Configuring Wireless Network
Wireless Security
Cisco CVR100W Wireless-N VPN Router Administration Guide
66
4
To protect your network, change the default wireless network name to a
unique name to distinguish your wireless network from other wireless
networks that may exist around you.
When choosing names, do not use personal information (such as your
Social Security number) because this information may be available for
anyone to see when browsing for wireless networks.
•
Change the default password.
For wireless products such as access points, routers, and gateways, you
are asked for a password when you want to change their settings. These
devices have a default password. The default password is often
cisco
.
Hackers know these default values and may try to use them to access your
wireless device and change your network settings. To thwart unauthorized
access, customize the device’s password so it is hard to guess.
•
Enable MAC address filtering.
Cisco routers and gateways give you the ability to enable MAC address
filtering. The MAC address is a unique series of numbers and letters
assigned to every networking device.
With MAC address filtering enabled, wireless network access is provided
solely for wireless devices with specific MAC addresses. For example, you
can specify the MAC address of each computer in your network so that
only those computers can access your wireless network.
•
Enable encryption.
Encryption protects data transmitted over a wireless network. Wi-Fi
Protected Access (WPA/WPA2) and Wired Equivalency Privacy (WEP) offer
different levels of security for wireless communication. Currently, devices
that are Wi-Fi certified are required to support WPA2, but are not required
to support WEP.
A network encrypted with WPA/WPA2 is more secure than a network
encrypted with WEP, because WPA/WPA2 uses dynamic key encryption.
To protect the information as it passes over the airwaves, enable the highest
level of encryption supported by your network equipment.
WEP is an older encryption standard and may be the only option available
on some older devices that do not support WPA.
•
Keep wireless routers, access points, or gateways away from exterior walls
and windows.
Page 69 / 150
Configuring Wireless Network
CVR100W Wireless Networks
Cisco CVR100W Wireless-N VPN Router Administration Guide
67
4
•
Turn off wireless routers, access points, or gateways when they are not
used (at night, during vacations).
•
Use strong passphrases that are at least eight characters in length.
Combine letters and numbers to avoid using standard words that can be
found in the dictionary.
General Network Security Guidelines
Wireless network security is useless if the underlying network is not secure. Cisco
recommends that you take the following precautions:
•
Password-protect all computers on the network and individually
password-protect sensitive files.
•
Change passwords on a regular basis.
•
Install anti-virus software and personal firewall software.
•
Disable file sharing (peer-to-peer) to prevent applications from using file
sharing without your consent.
CVR100W Wireless Networks
The CVR100W provides four virtual wireless networks or four SSIDs (Service Set
Identifier).
This table describes the default settings of these networks:
SSID Name
cisco-xxxx
cisco-SSID2
cisco-SSID3
cisco-guest
Enabled
Yes
No
No
No
SSID
Broadcast
Enabled
Disabled
Disabled
Enabled
Security
Mode
WPA2 mixed
Disabled
Disabled
Disabled
MAC Filter
Disabled
Disabled
Disabled
Disabled
VLAN
1
1
1
3
Page 70 / 150
Configuring Wireless Network
Configuring Basic Wireless Settings
Cisco CVR100W Wireless-N VPN Router Administration Guide
68
4
Configuring Basic Wireless Settings
The Basic Settings page allows you to configure basic wireless settings.
Configuring Wireless Radio Settings
To configure the wireless radio settings:
STEP 1
Choose
Wireless
>
Basic Settings
.
STEP
2
In the
Radio
field, check
Enable
to turn the wireless radio on.
This field enables the wireless radio itself. By default there is only one wireless
network enabled, cisco-xxxx.
STEP
3
In the
Wi-Fi Power
field, select the Wi-Fi power on your network.
STEP
4
In the
Wireless Network Mode
field, choose one of these options from the
drop-down menu:
SSID Isolation
Disabled
Disabled
Disabled
Enabled
WMM
Enabled
Enabled
Enabled
Enabled
WPS
Hardware
Button
Enabled
Disabled
Disabled
Disabled
SSID Name
cisco-xxxx
cisco-SSID2
cisco-SSID3
cisco-guest
B/G/N-Mixed
Choose this option if you have Wireless-N, Wireless-B, and
Wireless-G devices in your network. This is the default setting
(recommended).
B-Only
Choose this option if you have only Wireless-B devices in your
network.
G-Only
Choose this option if you have only Wireless-G devices in
your network.
N-Only
Choose this option if you have only Wireless-N devices in your
network.

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