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Configuring Your Wireless Network
Wireless > Advanced Wireless Settings
Cisco WRP400 User Guide
64
6
Figure 32
Wireless Client List
Wireless > Advanced Wireless Settings
The Advanced Wireless Settings screen is used to set up the advanced wireless
functions of the WRP400. These settings should only be adjusted by an expert
administrator as incorrect settings can reduce wireless performance.
NOTE
After you enter settings on this page, click Save Settings to apply your changes, or
click Cancel Changes to cancel your changes.
Figure 33
Wireless > Advanced Wireless Settings
Page 67 / 155
Configuring Your Wireless Network
Wireless > Advanced Wireless Settings
Cisco WRP400 User Guide
65
6
Authentication Type:
The default is set to Auto, which allows either Open
System or Shared Key authentication to be used. With Open System
authentication, the sender and the recipient
do not
use a WEP key for
authentication. With Shared Key authentication, the sender and recipient
use a WEP key for authentication. Select Shared Key to only use Shared
Key authentication.
Transmission Rate:
The rate of data transmission should be set depending
on the speed of your wireless network(s). You can select from a range of
transmission speeds, or you can select Auto to have the WRP400
automatically use the fastest possible data rate and enable the Auto-
Fallback feature. Auto-Fallback will negotiate the best possible connection
speed between the WRP400 and a wireless client. The default is Auto.
CTS Protection Mode:
The WRP400 will automatically use CTS (Clear-To-
Send) Protection Mode when your Wireless-G products are experiencing
severe problems and are not able to transmit to the WRP400 in an
environment with heavy 802.11b traffic. This function boosts the ability of
the WRP400 to catch all Wireless-G transmissions but will severely
decrease performance. The default is Auto.
Beacon Interval:
Enter a value between 1 and 65,535 milliseconds. The
Beacon Interval value indicates the frequency interval of the beacon. A
beacon is a packet broadcast by the WRP400 to synchronize the wireless
network(s). The default value is 100.
DTIM Interval:
This value, between 1 and 255, indicates the interval of the
Delivery Traffic Indication Message (DTIM). A DTIM field is a countdown
field informing clients of the next window for listening to broadcast and
multicast messages. When the WRP400 has buffered broadcast or
multicast messages for associated clients, it sends the next DTIM with a
DTIM Interval value. Its clients hear the beacons and awaken to receive the
broadcast and multicast messages. The default value is 1.
RTS Threshold:
If you encounter inconsistent data flow, only minor
reduction of the default value, 2347, is recommended. If a network packet is
smaller than the preset RTS threshold size, the RTS/CTS mechanism will
not be enabled. The WRP400 sends Request to Send (RTS) frames to a
particular receiving station and negotiates the sending of a data frame.
After receiving an RTS, the wireless station responds with a Clear to Send
(CTS) frame to acknowledge the right to begin transmission. The RTS
Threshold value should remain at its default value of 2347.
Page 68 / 155
7
Cisco WRP400 User Guide
66
Configuring Network Security and Controlling
Internet Access
You can use the Security screens to enable a firewall, add filters, or allow VPN
tunnels. You can use the Access Restrictions screen to control Internet usage.
Security > Firewall
The Firewall screen is used to configure a firewall that can filter out various types
of unwanted traffic on the local network.
NOTE
After you enter settings on this page, click Save Settings to apply your changes, or
click Cancel Changes to cancel your changes.
?
How Do I...
Enable a firewall, Internet filters, or Web filters?
See
“Security > Firewall,” on page 66
Allow VPN tunnels to pass through the firewall?
See
“Security > VPN Passthrough,” on page 68
Block or allow specific types of Internet usage and
traffic?
See
“Access Restrictions > Internet Access,” on
page 69
.
Page 69 / 155
Configuring Network Security and Controlling Internet Access
Security > Firewall
Cisco WRP400 User Guide
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Figure 34
Security > Firewall
Firewall
SPI Firewall Protection:
To use firewall protection, keep the default,
Enabled. To turn off firewall protection, select Disabled.
Internet Filter
Filter Anonymous Internet Requests: This feature makes it more difficult for
outside users to work their way into your network. This feature is selected
by default. Deselect the feature to allow anonymous Internet requests.
Filter Internet NAT Redirection:
This feature uses port forwarding to block
access to local servers from local networked computers. Select this feature
to filter Internet NAT redirection. It is not selected by default.
Filter IDENT (Port 113):
This feature keeps port 113 from being scanned
by devices outside of your local network. This feature is selected by
default. Deselect this feature to disable it.
Page 70 / 155
Configuring Network Security and Controlling Internet Access
Security > VPN Passthrough
Cisco WRP400 User Guide
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Web Filter
Proxy:
Use of WAN proxy servers may compromise the security of the
WRP400. Denying Proxy will disable access to any WAN proxy servers.
Select this feature to enable proxy filtering. Deselect the feature to allow
proxy access.
Java:
Java is a programming language for websites. If you deny Java, you
run the risk of not having access to Internet sites created using this
programming language. Select this feature to enable Java filtering. Deselect
the feature to allow Java usage.
ActiveX:
ActiveX is a programming language for websites. If you deny
ActiveX, you run the risk of not having access to Internet sites created using
this programming language. Select this feature to enable ActiveX filtering.
Deselect the feature to allow ActiveX usage.
Cookies:
A cookie is data stored on your computer and used by Internet
sites when you interact with them. Select this feature to filter cookies.
Deselect the feature to allow cookie usage.
Security > VPN Passthrough
The VPN Passthrough screen allows you to enable VPN tunnels using IPSec, PPTP,
or L2TP protocols to pass through the firewall of the WRP400.
NOTE
After you enter settings on this page, click Save Settings to apply your changes, or
click Cancel Changes to cancel your changes.
Figure 35
Security > VPN Passthrough

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