Zyxel AG-225H - Manuals

Customer Support v Customer Support When contacting your Customer Support Representative, please have the following information ready: ! Product model and serial number. ! Warranty Information. ! Date you received your product. ! Brief description of the problem and the steps you took to solve it. S...

ZyXEL AG-225H User’s Guide vii Table of Contents Table of Contents Copyright ....................................................................................................................................................... ii ZyXEL Limited Warranty ................................................

ZyXEL AG-225H User’s Guide x Preface Preface Congratulations on the purchase of your new ZyXEL AG-225H! About This User's Guide This manual provides information about the ZyXEL Wireless LAN Utility. Syntax Conventions • “Type” or “Enter” means for you to type one or more characters. "Select"...

Graphics Icons Key Wireless Access Point Computer Notebook computer Server Modem Wireless Signal Telephone Switch Router Preface xi

Getting Started 1-1 Chapter 1 • • • • • • • • • • Getting Started This chapter introduces the ZyXEL AG-225H and prepares you to use the ZyXEL Utility. 1.1 About Your ZyXEL AG-225H The ZyXEL AG-225H is an IEEE 802.11a, 802.11b, and 802.11g compliant wireless LAN adapter. With the ZyXEL AG-225H, you c...

ZyXEL AG-225H User’s Guide 1.3 LCM Description Security Information WEP security is enabled. WPA security is enabled. Wireless security is disabled (no security) Entry Display the current entry of the detected Access Points. Users can detect up to 15 networks at one time. Channel Display the radio c...

1.6.2 Profile This page is used to manage connections with Access Points. You can create different configuration profiles for connections with different APs and SSIDs. The advantage of saving different profiles is the easiness of quickly changing connections without having to configure the PC with e...

ZyXEL AG-225H User’s Guide Remove To remove a profile from the “Profile List” select it and then click on [Remove]. Apply If you want to change the current profile with another profile from the “Profile List”, select the desired profile and click on [Apply]. The new profile will immediately become t...

WLAN Security: This screen allows you to configure the security settings of your wireless LAN . Security Mode 1) Disabled All data sent between the AP and the client is left unencrypted and may be viewed by other wireless devices. 2) WEP Wired Equivalent Privacy – Encrypts all traffic sent between t...

1.6.3 Site Survey This page shows a list of SSIDs in your vicinity. Information regarding each SSID is also shown: SSID, mode, signal strength, channel, BSSID (MAC address), data rate, and WEP, WPA, WPA-PSK, etc status. Refresh [Refresh] will scan the vicinity for a certain amount of time and displa...

ZyXEL AG-225H User’s Guide Selecting a network from the [Available Networks] list will enable the [Detail Info], [Connect] and [Add to profile] buttons. Detail Info [Detail info] will display the following screen showing the selected device's configuration information. An alternative to clicking on ...

Connect [Connect] will immediately connect you with the selected network. Add to profile [Add to profile] will have the same effect as clicking on [Add] in the [Profile] page Getting Started 1-15

ZyXEL AG-225H User’s Guide 1.6.4 Options In this page you can configure the behavior of the ZyXEL utility. Let Windows manage this wireless adapter – Windows Zero configuration Allows you to use Windows to configure your wireless network settings. Check this box to configure . Auto DHCP renewal Auto...

1.6.5 Version Software and Hardware information of the current client device. 1.7 ZyAIR Modes You can set your ZyAIR to operate in either wireless station or access point (AP) modes. In wireless station mode, your ZyAIR must connect to a peer wireless station or an AP to take part in your wireless n...

ZyXEL AG-225H User’s Guide 1.7.1 Change ZyAIR Modes You may change between the modes; select either the Station Mode or AP Mode option in the ZyXEL Utility screen. 1-18 Getting Started

WLAN Networking 2-1 Chapter 2 Wireless LAN Networking This chapter provides background information on general wireless LAN networking technology and terminology. 2.1 Overview This section describes the wireless LAN network terms and applications. 2.1.1 SSID The SSID (Service Set Identity) is a uniqu...

ZyXEL AG-225H User’s Guide Ad-Hoc (IBSS) Ad-hoc mode does not require an AP or a wired network. Two or more wireless stations communicate directly to each other. An ad-hoc network may sometimes be referred to as an Independent Basic Service Set (IBSS). Figure 2-1 IBSS Example To set up an ad-hoc net...

ZyXEL AG-225H User’s Guide The following figure depicts a roaming example. When wireless station B moves to position X , the ZyXEL AG-225H in wireless station B automatically switches the channel to the one used by access point 2 in order to stay connected to the network. Figure 2-5 Roaming Example ...

Figure 2-6 Wireless LAN Security Levels Configure the wireless LAN security using the Profile Security Settings screen. If you do not enable any wireless security on your ZyXEL AG-225H, the ZyXEL AG-225H’s wireless communications are accessible to any wireless networking device that is in the covera...

ZyXEL AG-225H User’s Guide with an EAP-compatible RADIUS server, an access point helps a wireless station and a RADIUS server perform authentication. The type of authentication you use depends on the RADIUS server and an intermediary AP(s) that supports IEEE802.1x. The ZyXEL AG-225H supports EAP-TLS...

password approach makes WPA-PSK susceptible to brute-force password-guessing attacks but it’s still an improvement over WEP as it employs an easier-to-use, consistent, single, alphanumeric password. 2.2.4 WPA-PSK/WPA2-PSK Application Example A WPA-PSK application looks as follows. Step 1. First ente...

ZyXEL AG-225H User’s Guide data encryption keys to encrypt every data packet that is wirelessly communicated between the AP and the wireless clients. Figure 2-8 WPA/WPA2 with RADIUS Application Example 2.3 Fragmentation Threshold The Fragmentation Threshold is the maximum data fragment size (between...

they do not know if the channel is currently being used. Therefore, they are considered hidden from each other. Figure 2-9 RTS Threshold When station A sends data to the AP, it might not know that the station B is already using the channel. If these two stations send data at the same time, collision...

ZyXEL AG-225H User’s Guide 2-10 WLAN Networking Open authentication mode is implemented for ease-of-use and when security is not an issue. The wireless station and the AP do not share a secret key. Thus the wireless stations can associate with any AP and listen to any data transmitted plaintext. Sha...

WLAN Networking 3-1 Chapter 3 Access Point Mode Configuration This chapter shows you how to configure your ZyAIR in access point mode. 3.1 Introduction In access point mode, your ZyAIR functions as an access point. This allows you to set up your wireless networks without using a dedicated AP device....

ZyXEL AG-225H User’s Guide Profile LABEL DESCRIPTION Status SSID This field displays the name that identifies your ZyAIR in the wireless LAN network. Channel This field displays the radio channel the ZyAIR is currently using. Security This field displays the authentication type of the ZyAIR. Authent...

WLAN Networking 3-3 Profile LABEL DESCRIPTION RX Frame This field shows the number of frame when receiving MAC Address This field displays the MAC addresses of up to 15 wireless stations that are currently connected to the ZyAIR. 3.3 How to configure in Access Point Mode 3.3.1 Profile This page is u...

ZyXEL AG-225H User’s Guide 3.3.2 The MAC Filter The MAC Filter screen allows you to configure the ZyAIR to give exclusive access to (Accept) devices or exclude devices from (Reject) connecting to the ZyAIR. Every Ethernet device has a unique MAC (Media Access Control) address. The MAC address is ass...

Maintenance 4-1 Chapter 4 Maintenance This chapter describes how to uninstall or upgrade the ZyXEL Utility. 4.1 The Version Screen The Version screen displays related version numbers of the ZyXEL AG-225H. The following table describes the read-only fields in this screen.

ZyXEL AG-225H User’s Guide About LABEL DESCRIPTION Package Version This field displays the version number of the combination driver/utility package. Driver Version This field displays the version number of the ZyXEL driver. Utility Version This field displays the version number of the ZyXEL utility....

Maintenance 4-3 4.3 Upgrading the ZyXEL Utility Before you uninstall the ZyXEL Utility, take note of the current network configuration. To perform the upgrade, follow the steps below. Step 1. Download the latest version of the utility from the ZyXEL web site and save the file on your computer. Step ...

Wireless Security 5-1 Chapter 5 Configuring Wireless Security This chapter covers the configuration of security options in the ZyXEL Utility. 5.1 Configuring Security You can configure your security settings at any time. Simply select the profile you wish to edit under the [Profile] tab, select [Pro...

Troubleshooting 6-1 Chapter 6 Troubleshooting This chapter covers potential problems and possible remedies. After each problem description, some instructions are provided to help you diagnose and solve the problem. 6.1 Problems Starting the ZyXEL Utility Program Table 6-1 Troubleshooting Starting Zy...

ZyXEL AG-225H User’s Guide 6-2 Troubleshooting 6.3 Problems Communicating With Other Computers Table 6-3 Troubleshooting Communication Problems PROBLEM CORRECTIVE ACTION The ZyXEL AG-225H computer cannot communicate with the other computer. Make sure you are connected to the network. A. Infrastructu...