Cisco Wap4410n Wirelessn Manual

							Configuring the Cisco WAP4410N Wireless-N Access Point
Status
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-Primary DNS—The IP address of your primary DNS server. 
-Secondary DNS—The IP address of your secondary DNS server. 
STEP  2To update the status information, click Refresh. 
Wireless
The Status > Wireless page displays the access point’s current status information 
for the wireless network. To check wireless network status of the access point, 
follow these steps:
STEP 1Click Status > Wireless.
This page displays the status of the wireless network:
•Mode—The access point’s wireless network mode.
•Channel—The access point’s channel setting.
•SSID 1–4 MAC Address—The MAC address of the access point’s wireless 
interface.
•SSID 1–4—The access point’s SSID.
•VLAN Trunk—The access point’s VLAN Trunk status.
•Priority Setting—The current priority setting.
•SSID 1–4 Security Mode—The security mode of the SSID.
•SSID 1–4 Priority—The priority status of the SSID.
STEP  2To update the wireless status information, click Refresh.  
						

							Configuring the Cisco WAP4410N Wireless-N Access Point
Status
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System Performance
The Status > System Performance page displays the access point’s status 
information for its current settings and data transmissions. To check system 
performance of the access point, follow these steps:
STEP 1Click Status > System Performance.
This page displays the access point’s system performance values:
•Wired—The statistics for the wired network.
-IP Address—The access point’s local IP address.
-MAC Address—The MAC address of the access point’s wired interface.
-Connection—The status of the access point’s connection for the wired 
network.
-Packets Received—The number of packets received.
-Packets Sent—The number of packets sent.
-Bytes Received—The number of bytes received.
-Bytes Sent—The number of bytes sent.
-Error Packets Received—The number of error packets received.
-Drop Received Packets—The number of packets being dropped after 
they were received.
•Wireless—The statistics for the wireless network.
-Name—The wireless network/SSID the statistics refer to.
-IP Address—The access point’s local IP address.
-MAC Address—The MAC Address of the access point’s wireless 
interface.
-Connection—The status of the access point’s wireless networks.
-Packets Received—The number of packets received for each wireless 
network.
-Packets Sent—The number of packets sent for each wireless network.
-Bytes Received—The number of bytes received for each wireless 
network. 
						

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Status
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-Bytes Sent—The number of bytes sent for each wireless network.
-Error Packets Received—The number of error packets received for 
each wireless network.
-Drop Received Packets—The number of packets being dropped after 
they were received.
STEP  2To update the system performance status information, click Refresh.  
						

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Troubleshooting
This appendix provides solutions to problems that might occur during the 
installation and operation of the Cisco WAP4410N Access Point. 
Read the descriptions below to help solve your problems. If you cant find an 
answer here, check the Cisco.com website at 
www.cisco.com/en/US/support/
tsd_cisco_small_business_support_center_contacts.html
.
Frequently Asked Questions
Q. Can the access point act as my DHCP Server?
No. The access point is nothing more than a wireless hub, and as such 
cannot be configured to handle DHCP capabilities.
Q. Can I run an application from a remote computer over the wireless 
network?
This depends on whether or not the application is designed to be used over 
a network. Consult the application’s documentation to determine if it 
supports operation over a network.
Q. Can I play multiplayer games with other users of the wireless network?
Yes, as long as the game supports multiple players over a LAN (local area 
network). Refer to the game’s documentation for more information.
Q. Can the access point work with a Centrino client? 
Yes. However, a Centrino client may only support 20 MHz channels so the 
maximum data rate with this client will be less than 130 Mbps.  
						

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Q. What is the IEEE 802.11b standard?
It is one of the IEEE standards for wireless networks. The 802.11b standard 
allows wireless networking hardware from different manufacturers to 
communicate, provided that the hardware complies with the 802.11b 
standard. The 802.11b standard states a maximum data transfer rate of 
11Mbps and an operating frequency of 2.4 GHz.
Q. What is the IEEE 802.11g standard?
It is one of the IEEE standards for wireless networks. The 802.11g standard 
allows wireless networking hardware from different manufacturers to 
communicate, provided that the hardware complies with the 802.11g 
standard. The 802.11g standard states a maximum data transfer rate of 
54Mbps and an operating frequency of 2.4GHz.
Q. What is the IEEE 802.11n draft standard?
It is one of the IEEE standards for wireless networks that is being finalized. 
The 802.11n standard allows wireless networking hardware from different 
manufacturers to communicate, provided that the hardware complies with 
the 802.11n standard. The 802.11n standard states a maximum data transfer 
rate of 600Mbps and an operating frequency of either 2.4GHz or 5 GHz. 
Q. What IP v6 features are suppor ted?
The Cisco WAP4410N Access Point supports the following IPv6 functions:
-Path MTU discovery (RFC1981)
-Internet Protocol v6 -IPv6 (RFC2460)
-IPv6 Neighbor Discovery (ND) (RFC2461)
-IPv6 Stateless Address autoconfiguration (RFC2462)
-ICMPv6: Internet Control Message Protocol v6 ICMPv6 (RFC2643)
-IPv6 Address architecture (RFC3513)
-Default address selection (RFC3484)
-Transmission of IPv6 Packets over Ethernet Networks (RFC 2464)
-IPv6 Node - (RFC4294)
-Dual IPv4/IPv6 stack - simultaneous access from IPv4 and IPv6 client at 
the same time. 
						

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The Cisco WAP4410N Access Point supports the following IPv6 
Applications:
-WEB/SSL
-SNTP
-PING6
-TRACE Route 
Q. What is roaming?
Roaming is the ability of a portable computer user to communicate 
continuously while moving freely throughout an area greater than that 
covered by a single access point. Before using the roaming function, the 
workstation must make sure that it is set to the same channel number as the 
access point of the dedicated coverage area. 
To achieve true seamless connectivity, the wireless LAN must incorporate a 
number of different functions. Each node and access point, for example, 
must always acknowledge receipt of each message. Each node must 
maintain contact with the wireless network even when not actually 
transmitting data. 
Achieving these functions simultaneously requires a dynamic RF 
networking technology that links access points and nodes. In such a 
system, the user ’s end node undertakes a search for the best possible 
access to the system. First, it evaluates such factors as signal strength and 
quality, as well as the message load currently being carried by each access 
point and the distance of each access point to the wired backbone. Based 
on that information, the node next selects the right access point and 
registers its address. 
Communications between end node and host computer can then be 
transmitted up and down the backbone.
As the user moves on, the end node’s RF transmitter regularly checks the 
system to determine whether it is in touch with the original access point or 
whether it should seek a new one. When a node no longer receives 
acknowledgment from its original access point, it undertakes a new search. 
Upon finding a new access point, it then re-registers, and the 
communication process continues. 
						

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Q. What is the ISM band?
The FCC and their counterparts outside of the U.S. have set aside 
bandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical) 
band. 
Spectrum in the vicinity of 2.4 GHz, in particular, is being made available 
worldwide. This presents a truly revolutionary opportunity to place 
convenient high speed wireless capabilities in the hands of users around 
the globe. 
Q. What is Spread Spectrum?
Spread Spectrum technology is a wideband radio frequency technique 
developed by the military for use in reliable, secure, mission-critical 
communications systems. It is designed to trade off bandwidth efficiency 
for reliability, integrity, and security. 
In other words, more bandwidth is consumed than in the case of 
narrowband transmission, but the trade-off produces a signal that is, in 
effect, louder and thus easier to detect, provided that the receiver knows 
the parameters of the spread-spectrum signal being broadcast. If a receiver 
is not tuned to the right frequency, a spread-spectrum signal looks like 
background noise. 
There are two main alternatives, Direct Sequence Spread Spectrum (DSSS) 
and Frequency Hopping Spread Spectrum (FHSS).
Q. What is DSSS? What is FHSS? And what are their differences?
Frequency Hopping Spread Spectrum (FHSS) uses a narrowband carrier 
that changes frequency in a pattern that is known to both transmitter and 
receiver.
Properly synchronized, the net effect is to maintain a single logical channel. 
To an unintended receiver, FHSS appears to be short-duration impulse 
noise. Direct Sequence Spread Spectrum (DSSS) generates a redundant 
bit pattern for each bit to be transmitted. This bit pattern is called a chip (or 
chipping code). 
The longer the chip, the greater the probability that the original data can be 
recovered. Even if one or more bits in the chip are damaged during 
transmission, statistical techniques embedded in the radio can recover the 
original data without the need for retransmission. 
To an unintended receiver, DSSS appears as low power wideband noise 
and is rejected (ignored) by most narrowband receivers.  
						

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Q. Would the information be intercepted while transmitting on air?
WLAN features two-fold protection in security. On the hardware side, as 
with Direct Sequence Spread Spectrum technology, it has the inherent 
security feature of scrambling. On the software side, the WLAN series 
offers a variety of wireless security methods to enhance security and 
access control. Users can set it up depending upon their needs.
Q. Can Cisco wireless products support file and printer sharing?
Cisco wireless products perform the same function as LAN products. 
Therefore, Cisco wireless products can work with NetWare, Windows NT/
2000, or other LAN operating systems to support printer or file sharing.
Q. What is a MAC Address? 
The Media Access Control (MAC) address is a unique number assigned by 
the manufacturer to any Ethernet networking device, such as a network 
adapter, that allows the network to identify it at the hardware level. For all 
practical purposes, this number is usually permanent. Unlike IP addresses, 
which can change every time a computer logs on to the network, the MAC 
address of a device stays the same, making it a valuable identifier for the 
network.
Q. How do I avoid interference?
Using multiple access points on the same channel and in close proximity to 
one another will generate interference. When employing multiple access 
points, make sure to operate each one on a different channel (frequency).
Q. How do I reset the access point?
Press the Reset button on the back of the access point for about ten 
seconds. This resets the unit to its default settings.
Q. How do I resolve issues with signal loss?
There is no way to know the exact range of your wireless network without 
testing. Every obstacle placed between an access point and wireless 
computer will create signal loss. Leaded glass, metal, concrete floors, water, 
and walls will inhibit the signal and reduce range. Start with your access 
point and your wireless computer in the same room and move it away in 
small increments to determine the maximum range in your environment. 
You may also try using different channels, as this may eliminate interference 
affecting only one channel. Also, open the access point’s web-based utility, 
click Wireless > Advanced Wireless, and make sure the output power is 
set to 100%. 
						

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Q. Does the access point function as a firewall?
No. The access point is only a bridge from wired Ethernet to wireless 
clients. 
Q. I have excellent signal strength, but I cannot see my network. 
Wireless security, such as WEP or WPA, is probably enabled on the access 
point, but not on your wireless adapter (or vice versa). Verify that the same 
wireless security settings are being used on all devices in your wireless 
network. 
Q. What is the maximum number of users the access point can handle?
No more than 63, but this depends on the volume of data and may be fewer 
if many users create a large amount of network traffic. 
Q. How do I configure multiple Cisco WAP4410N access points with the 
same configuration?
STEP 1Configure one access point and then save the configuration file through its web 
page. 
STEP  2Using a text editor, change the command secret_shown=1 to 
secret_shown=0 in the configuration file, and then save the file. 
STEP  3Restore the file to the access point through its web page and save the 
configuration, naming it AP_Config.cfg. 
STEP  4At this point, all keys and passwords are shown in clear text. 
STEP  5Restore the AP_config.cfg file on other access point’s through their web pages 
one by one. 
Windows Help
Many wireless products require Microsoft Windows. Windows comes with many 
features that help make networking easier. These features can be accessed 
through Windows Help and are described in this appendix. 
						

							Troubleshooting
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TCP/IP
Before a computer can communicate with the access point, TCP/IP must be 
enabled. TCP/IP is a set of instructions, or protocol, all computers follow to 
communicate over a network. This is true for wireless networks as well. Your 
computers will not be able to utilize wireless networking without having TCP/IP 
enabled. Windows Help provides complete instructions on enabling TCP/IP.
Shared Resources
If you wish to share printers, folders, or files over your network, Windows Help 
provides complete instructions on using shared resources.
Network Neighborhood/My Network Places
Other computers on your network will appear under Network Neighborhood or 
My Network Places (depending upon the version of Windows youre running). 
Windows Help provides complete instructions on adding computers to your 
network.