The establishment of wireless office network

The application of wireless networks in the home can be easily configured successfully. However, a wider range of applications is used in office, and unlike traditional wired networks, wireless networks can be a hassle-relieving route and broadband connections anywhere in the company.

First, the establishment and configuration of Access point Network

An access point network is an access point that is similar to an Ethernet hub in a wireless network, and the wireless connection between computers is accomplished through that connection point. Access point networks generally use wireless access points (ap,access point) for access (Figure 1), access to success, and to a large extent to the success of the AP installation.


Figure 1 The model using AP as an access point

1.AP Installation and Brief introduction

(1) The Wireless Access node (AP) can be fixed to the wall or ceiling.

(2) Confirm the antenna is in the vertical position, if not, please twist the antenna.

(3) If the company is using broadband, the DHCP server automatically assigns IP, you can connect the AP directly to the upstream port. If it is ADSL dialing, you need to add a router before connecting to the upstream port, and if it is led by the AP then there is no need for an uplink router. (ADSL dialing settings look at the previous content)

(4) There will usually be 3 LEDs on the AP, power is the state of the connection, the Act indicates the state of the wireless communication, the wireless communication is flashing when the signal is received, and link represents the state of the 10BASE-T channel. Because the AP will periodically send data called beacon (a radio signal), the act lamp will blink even without communication. If all 3 LEDs appear to be working correctly, AP installation is complete.

Second, client settings

(1) When the workstation received the beacon signal sent to the AP, the lower right corner of the taskbar will show that the wireless network connection is connected, and give the connection name and signal strength (Figure 2).


Figure 2 shows the connection success information
(2) Open the network connection, right-click the wireless network connection, and select the status Option command in the menu that appears. Enter the wireless Network Connection Status Settings dialog box to view information about the current wireless network connection (Figure 3). If you need to disable the local wireless network, click the Disable button, and then click the Enable button when you resume.


Figure 3 "Wireless network connection status" setting

(3) on the "Status" tab, click the Properties button to enter the Wireless Network Connection dialog box to select an available wireless network connection, click to select the check box that allows me to connect to the selected wireless network, even if it is unsafe, and then click the Connect button (Figure 4).


Figure 4 The Wireless Network Connection dialog box

(4) Return to the Network Connection dialog box, right-click the wireless network connection icon, select Properties from the menu that appears, enter the Wireless Network Connection Properties dialog box, and click the Wireless Network Configuration tab.

To change the order in which connection attempts are made to access a preferred network, under Preferred networks, click the wireless network that you want to move to the new location on the list, and then click Move Up or Move down. To change the wireless network connection settings that are listed in one of your preferred networks, click the wireless network for which you want to change settings, click Properties, and then change the settings as needed. To remove a wireless network from the Preferred networks list, under Preferred networks, click the wireless network that you want to remove, and then click Delete. To update the list of available networks in your computer's range, click Refresh. To automatically connect to an available network that does not appear in the Preferred Networks list, click Advanced, and then select the Automatically connect to non-preferred network check box (Figure 5).


Figure 5 The Wireless Network Connection Properties dialog box

(5) If you want to configure a new wireless network connection, click the Add button. Under Wireless network properties, under the Associated Options tab, specify the Network name (Service Set Identifier) setting, and specify the wireless network key settings (Figure 6) if necessary.


Figure 6 Specifying the network name (Service Set Identifier) setting

(6) You can certainly make the advanced settings in the wireless network connection properties, which enhances the security of your wireless connection.
Click the Advanced tab to go to the Advanced Settings dialog box (Figure 7), and if the Preferred networks list contains both access points and computers to the computer network, you cannot move the computer to the computer network in the list to a higher location than the access point network. To enhance the security of 802.11 wireless networks and wired Ethernet networks, make IEEE 802.1x authentication default to Enabled.


Figure 7 The Advanced Settings dialog box

Two, with access point management function of wireless LAN

This way Office Mobile office network based on Access point AP as the center, all base station communication through AP Access, equivalent to Wireless Link as the original backbone network or its part, corresponding in the Mac frame, with the source address, destination address and access point address. Through the response signals of each base station, the AP can build a "bridge junction table" like "routing table" inside, and connect each base station and port one by one. When the signal is received, the AP is queried by the "Bridge connection table". Because the AP of Wave LAN has Ethernet interface, it can build a wireless LAN with AP as the center, and can also use AP as an extension part of a wired network. For a large office, you can use its seamless roaming capabilities (Figure 8) by using multiple AP sections.

Figure 8 Wireless LAN with access point management function

Installation of 1.AP

(1) The Wireless Access node (AP) can be fixed to the wall or ceiling.

(2) Use a UTP Ethernet cable to connect the AP with the Gateway (server).

(3) Install AP Manager and other AP access and configuration management software on the server.

2.AP Manager Interface Introduction

(1) After installing the software, open the AP Manager Software main window (Figure 9).

The tree structure of the left window shows a list of wireless LANs and wireless access nodes in each wireless LAN, illustrating a wireless local area network called "Wireless LAN." AP Manager manages and configures each access node through the MAC address of the wireless network card. The icon in the figure shows the access node that is disabled by the current wireless LAN, and moving the wireless access node to the folder causes the unlimited access node to detach from the network. The icon in the figure shows the unused wireless access node, and the AP Manager software does not manage the wireless access nodes that are part of the unused wireless access node and does not change those wireless access nodes.

Figure 9 AP Manager Software main window

(2) You can click, double-click to observe the properties of the Wireless access node, or drag the wireless access node to another wireless LAN. The name (or Essid) of a wireless LAN is used to identify a wireless local area network. Customer sites with the same Essid are free to roam between wireless access nodes. The data confidentiality function of WLAN can be managed in the WLAN Security page. The Access point page is primarily used to select a wireless communication channel.

3.AP Manager establishes Wireless LAN steps

You can set up a wireless local area network by clicking the "Computer link" icon, and the first time you configure it, you need to do the following seven steps:

(1) Physical connection to the wireless access node to the local area network. Verify that the power to the network device is turned on and that the Wireless access node is now started. If you only need to use the wireless Access node's default configuration, you can stop now. If you need to perform additional configuration on the wireless access node, such as changing the communication channel, restricting network access, and so on, continue with the following steps.

(2) In order to be able to manage wireless access nodes through SNMP, each wireless access node requires a separate IP address. If the LAN provides DHCP, the wireless access node will automatically obtain an IP address, or you will need to manually specify the IP address for the wireless access node.

(3) Start AP Manager software and configure network settings to meet your needs.

(4) Set up a wireless LAN, select the appropriate data privacy settings option. The

(5) applies the built-in search feature (Edit/search access point) to collect information about the wireless access node. Drag and drop the wireless access node to the wireless LAN you need.

(6) Select an appropriate communication channel and enter some descriptive information for each wireless access node for future reference.

(7) Saves the configuration information to disk and sends the new settings to the Wireless access node on the network.

Tip:

The new settings for the Wireless access node can take effect only if the Commit to network operation has been made. You can change the network settings at any time by opening the configuration software that is saved on the disk.

4.AP Manager establishes a wireless LAN setting

A stand-alone wireless access node is identified by their MAC address. When you add a wireless access node manually, you must know its MAC address, and the MAC address can be found on the tab on the back of the Wireless access node.

Wireless Access node has three icon display:

Wireless access node online
Wireless access node offline, inaccessible, or IP address error
Wireless access node is locked, its settings can not be changed

(1 On the access point page of the Wireless Access node, read-only information displays information such as the hardware address, version, and so on of the Wireless access node (Figure 10).


Map Access Point page

If there is only one AP in the same area, the channel of the AP is optional and the default setting is "1".

If you have several AP in the same area, you need to configure each AP channel to minimize frequency interference between adjacent APs. In general, for products that use the United States standard (FCC, 11 channels), if you place 3 AP in the same area, you can set its channel to 1, 6, 11, which will not cause interference.
(2) Click the "Small Computer link" icon to enter the Network Settings dialog box (Figure 11). Use this dialog box to inform the AP Manager software for network configuration. The AP Manager software requires this information to search the network for wireless access nodes. If the computer that is running AP manager is connected directly to the local area network, you can press the "Auto Add local Networks" button to automatically set up Networking information.

Figure Network Settings (Network Settings) dialog box

(3) "Flashlight" button to search for wireless access nodes, AP Manager software has an Easy-to-use wireless Access node search function to simplify the management of wireless access nodes. This feature is typically used in the following situations:

The new wireless access node is connected to the network.

The IP addresses of one or more wireless access nodes do not exist, usually because the DHCP server has reassigned IP addresses to them, which can be learned from the wireless access node's offline status.

Start the search function by selecting the Edit/search Access Point menu or by clicking the appropriate button on the toolbar. When the AP Manager software searches for a wireless access node, you can continue with other work, and you can abort the current search by clicking the Stop Search button.

(4) By default, the IP address of the wireless access node is assigned by the DHCP server in the network. If there are no DHCP servers available on the network, you must manually specify the IP address for the wireless access node. Click the button to enter the Access Point dialog box (Figure 12).

"MAC Address" is the physical location of the specified node.

IP address is the IP addresses of the specified nodes.


Figure 12 Assigning an IP address manually for a wireless access node

(5) Maintaining confidentiality in a wireless LAN environment is not the same as in a wired network, as the airwaves do not stop at your office walls, and unauthorized access outside the office can result in data being stolen.

There are three ways to achieve confidentiality of data:

Encrypt before data is transferred

Restricting computers that can use wireless networks

Protect your network settings from unauthorized changes from inside or outside

Data encryption wireless access node supports two kinds of data structures:

Non-encrypted data

The standard ieee802.11b

Wep

The privilege control IEEE802.11B standard realizes the permission control rule based on the hardware address of the customer site, and is realized by our wireless access node completely.

Confidential management

Prevents intrusion through the SNMP protocol by setting SNMP Write Community String (WCS), similar to a password. Additionally, wireless access nodes can be locked so that they cannot be managed by SNMP, and the lock can only be contacted by pressing the reset button. Select the WAN Security page to enter the Secure Settings page (Figure 13).


Figure 13 Privacy settings

When you change the settings for a wireless access node, you need to upload the new settings over the network to the Wireless access node. Click the Finger button to complete the update work for all wireless access nodes at the same time. Approximately 10 seconds after the configuration of the Wireless access node is successfully updated, it will disconnect all client sites and reboot with the new settings. (Computer science)