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Page 31 / 55 Scroll up to view Page 26 - 30
28
Improving Security
Linksys E1550
To manually set your router’s wireless security settings:
Wireless > Wireless Security
1.
Log into the browser-based utility (see “How to open the browser-based
utility” on page 14)°
2.
Click the
Wireless
tab, then click the
Wireless Security
page°
3.
Select your preferred security type from the
Security Mode
drop-down
list For most home networks, we recommend
WPA2/WPA Mixed Mode
°
4.
Enter a passphrase (security key) for your wireless network in the
Passphrase
field° The most secure type of security key should include a
mix of uppercase and lowercase letters, numbers, and punctuation°
5.
Click
Save Settings
at the bottom of the screen°
How to set up wireless security using
Wi-Fi Protected Setup
Why would I use Wi-Fi Protected Setup?
Wi-Fi Protected Setup™ is a feature
of your router that makes it easy to add devices to your wireless network° If you
have network devices, such as wireless printers, that support Wi-Fi Protected
Setup, then you can use Wi-Fi Protected Setup to add the devices°
Wi-Fi Protected Setup activity light
The power indicator light on the back of the router (or on top for the E4200)
indicates the status of Wi-Fi Protected Setup while you are connecting devices°
•
When Wi-Fi Protected Setup is connecting a network device, the light
flashes slowly°
•
If there is an error, the light flashes quickly for two minutes° Wait until it
stops flashing, then try again°
•
When Wi-Fi Protected Setup has finished connecting a device, the light
is continuously lit °
•
Wait until the light is continuously lit before starting the next Wi-Fi
Protected Setup session°
Connect network devices using one of the three methods below°
NOTE
Wi-Fi Protected Setup configures one device at a time° Repeat the
instructions for each device that supports Wi-Fi Protected Setup°
Connecting a device using the Wi-Fi Protected Setup
button
Use this method if your device has a Wi-Fi Protected Setup button or prompts
you to press the Wi-Fi Protected Setup button on your router°
To connect a device using the Wi-Fi Protected Setup button:
Wireless > Basic Wireless Settings
1.
Press the
Wi-Fi Protected Setup
button on the network device you are
connecting to°
2.
Press the
Wi-Fi Protected Setup
button on the back of the router°
- OR -
a.
Log into the browser-based utility (see “How to open the browser-
based utility” on page 14)°
b.
Click the
Wireless
tab, then click the
Basic Wireless Settings
page°
c.
Click
Wi-Fi Protected Setup
°
d.
Click the
Wi-Fi Protected Setup
button in the router’s
Wi-Fi Protected
Setup
screen°
e.
After the device has been configured, click
OK
°
Page 32 / 55
29
Improving Security
Linksys E1550
How to connect a device using its Wi-Fi Protected
Setup PIN
Use this method if your device has a Wi-Fi Protected Setup
PIN
(Personal
Identification Number)°
To connect a device using the device’s Wi-Fi Protected Setup PIN:
Wireless > Basic Wireless Settings
1.
Log into the browser-based utility (see “How to open the browser-based
utility” on page 14)°
2.
Click the
Wireless
tab, then click the
Basic Wireless Settings
page°
3.
Click
Wi-Fi Protected Setup
°
4.
Enter the PIN from the device into the
PIN
field on the router’s
Wi-Fi
Protected Setup
screen, then click
Register
°
5.
After the device has been connected, click
OK
°
How to connect a device using the router’s Wi-Fi
Protected Setup PIN
Use this method if your client device asks for the router’s PIN°
To connect a device using the device’s Wi-Fi Protected Setup PIN:
Wireless > Basic Wireless Settings
1.
Log into the browser-based utility (see “How to open the browser-based
utility” on page 14)°
2.
Click the
Wireless
tab, then click the
Basic Wireless Settings
page°
3.
Click
Wi-Fi Protected Setup
°
4.
On the client device, enter the PIN listed on the router’s
Wi-Fi Protected
Setup
screen° It is also listed on the bottom of the router° In the example
below, the router’s PIN is 32744781°
5.
Follow the device’s instructions to complete setup°
How to connect a device manually
If you have devices that do not support Wi-Fi Protected Setup, note the wireless
settings in the
Basic Wireless Settings
screen, then manually configure those
devices°
For each wireless network, the Network Name (SSID), Security, and Passphrase
are displayed at the bottom of the screen°
Page 33 / 55
30
Improving Security
Linksys E1550
How to control access to your wireless
network
Why would I need to control access to my wireless network?
If you used
Cisco Connect to configure your router, your wireless network is already secure°
By default, Cisco Connect enables industry-standard
WPA
(Wi-Fi Protected
Access) security using WPA2/WPA mixed mode° Cisco Connect configures your
network with a complex, 10-character password that is almost impossible
to compromise° If you set up your wireless network manually and have not
enabled wireless security, your wireless network will be an “open” network that
almost anyone nearby with a Wi-Fi-enabled device could access°
What is MAC filtering?
The best way to secure your wireless network is to use
Cisco Connect to automatically configure and secure it° However, if you choose
not to use the built-in security features of your router, you can still control
access to your wireless network using MAC filtering°
Every network device has a unique, 12-digit
MAC
(Media Access Control)
address° Using MAC filtering, you can allow only known MAC addresses onto
your network° You can also exclude specific MAC addresses or deny them
access to your wireless network°
Example
: Because each MAC filtering configuration is unique, the following
procedure uses the simplified example of setting up MAC filtering to allow one
wireless device access to the network°
To set up MAC filtering to allow one wireless device access to your
network:
Wireless > Wireless MAC Filter
1.
Log into the browser-based utility (see “How to open the browser-based
utility” on page 14)°
2.
Click the
Wireless
tab, then click the
Wireless MAC Filter
page°
3.
Click
Enabled
°
4.
Select
Permit
°
TIP
You can also use MAC filtering to prevent specific PCs from
accessing your network by selecting
Prevent
° However, it’s easier
to permit only known devices than to exclude unknown devices°
5.
Click
Wireless Client List
° A separate window opens and displays the
currently connected devices° In the example below, the only device
permitted onto the network is the MacBook° However, two other devices
are also connected to the network°
6.
Next to the device entry, select
Save to MAC Address Filter List
, then
click
Add
° The Mac Address Filter List is updated with the MAC address of
the device you added°
Page 34 / 55
31
Improving Security
Linksys E1550
7.
Click
Save Settings
at the bottom of the page°
8.
Click
Wireless Client List
again to check the updated device list° Only
the device you selected remains on the network°
How to improve security using the built-in firewall
Why would I need to change my security settings?
By default, the firewall
settings in your router have been optimized for most home environments, so
no changes are needed° The
SPI
(Stateful Packet Inspection) firewall is enabled
by default° In addition, anonymous Internet requests and IDENT requests are
filtered by default° All web filters are disabled, because enabling them may
cause problems for sites that depend on ActiveX controls, Java, or cookies°
To change your firewall settings:
Security->Firewall
1.
Log into the browser-based utility (see “How to open the browser-based
utility” on page 14)°
2.
Click the
Security
tab, then click the
Firewall
page°
3.
Select each setting that you want to change°
TIP
For descriptions of the filters, click
Help
on the right side of the
screen° More complete descriptions are included below°
•
SPI Firewall Protection
—This helps protect your local network from
Internet threats° This option is enabled by default°
CAUTION
To help protect your network, you should keep this option enabled°
•
Filter Anonymous Internet Requests
—This filter blocks Internet
requests from unknown sources such as ping requests° This option is
enabled by default°
•
Filter Multicast
—Multicasting allows a single transmission to
simultaneously reach specific recipients within your local network°
Select this option to block multicasting° This option is disabled by
default°
•
Filter Internet NAT Redirectio
n—This filter prevents a local computer
from using a URL or Internet IP address to access the local server° Select
this option to enable the filter° This option is disabled by default°
•
Filter IDENT (Port 113)
—This filter prevents port 113 from being
scanned by devices from the Internet° This option is enabled by
default°
•
Proxy
- This filter blocks the use of Internet proxy servers° To deny
proxy requests, select this option° Proxy access is allowed by default°
•
Java
- This filter blocks Java, so you may not be able to access Java
content on websites° To deny Java requests, select this option° Java
content is allowed by default°
•
ActiveX
- This filter blocks ActiveX, so you may not be able to access
ActiveX content on websites° To deny ActiveX requests, select this
option° ActiveX content is allowed by default°
•
Cookies
- This filter blocks cookies, which are data stored on your
computer and used by websites when you interact with them° To deny
cookie requests, select this option° Cookie usage is allowed by default°
4.
Click
Save Settings
to update your changes°
Page 35 / 55
32
Using an External Drive
Linksys E1550
32
How to configure storage
Why would I need to configure storage?
By default, when you connect a
storage device to your router, the entire contents of the device are available for
read and write access to anyone on your local network (no login credentials are
required)° However, you can also create shared folders that you can configure
to share only with specified groups°
To control access to the USB drive attached to your router, you need to
perform two tasks:
1.
Create one or more shared folders (see “How to create shared folders”
below)
2.
Manage group and User Access to Shared Folders (see “How to share
folders and set access rights” on page 37)
How to create shared folders
To create a shared folder:
Storage > Disk
1.
Log into the browser-based utility (see “How to open the browser-based
utility” on page 14)°
2.
Click the
Storage
tab, then click the
Disk
page°
3.
Click
Create Share
next to the partition you want to share° The
Shared
Folder
screen opens°
4.
If you want to share the entire partition, select
Share Entire Partition
,
then click
Save Settings
at the bottom of the screen°
- OR –
If you want to share a specific folder:
a.
Enter a unique name in the
Display Name
field°
b.
Click
Select
next to the folder name you want to share°
•
To open a subfolder, click
Enter into Folder
°
•
To navigate to a previous folder, click
Return to Upper Folder
°
•
To create a new folder, type the name into the
New Folder
field,
then click
Create
°
Using an External Drive

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