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Chapter 14 Troubleshooting

PLA450 User’s Guide

121

V

The POWER lights on both devices finished blinking, but only one device’s
HomePlug light is on.

One device may have connected to a third powerline device. To check device A is connected
to device B and not another device, disconnect device B from its power source. Device A’s
HomePlug (

) light will turn off if the connection is with Device B. Press the

ENCRYPT

button on

both

devices for more than 10 seconds, then try to reconnect, pressing the

ENCRYPT

button for less than 3 seconds on both devices.

V

I pressed the ENCRYPT button for more than 10 seconds, but the HomePlug
light is still on.

5

The HomePlug light is on, indicating it is still connected to another powerline device.
Try again, pressing the

ENCRYPT

button for more than 10 seconds.

14.8 Advanced Features

V

I can log in, but I cannot see some of the screens or fields in the Web
Configurator.

You may be accessing the Web Configurator in Basic mode. Some screens and fields are
available only in Advanced mode. Use the

Maintenance > Config

Mode screen to select

Advanced mode.

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Содержание PLA-450 - V3.60

Страница 1: ...www zyxel com PLA450 Series Homeplug AV to WLAN AP Bridge User s Guide Version 3 60 1 2008 Edition 3 DEFAULT LOGIN IP Address http 192 168 1 2 Password 1234...

Страница 2: ......

Страница 3: ...descriptions of individual screens and supplementary information It is recommended you use the web configurator to configure the PLA450 Supporting Disk Refer to the included CD for support documents...

Страница 4: ...A key stroke is denoted by square brackets and uppercase text for example ENTER means the enter or return key on your keyboard Enter means for you to type one or more characters and then press the ENT...

Страница 5: ...5 Icons Used in Figures Figures in this User s Guide may use the following generic icons The PLA450 icon is not an exact representation of your device PLA450 Computer Notebook computer Server Switch R...

Страница 6: ...fore servicing or disassembling Use ONLY an appropriate power adaptor or cord for your device Connect the power adaptor or cord to the right supply voltage for example 110V AC in North America or 230V...

Страница 7: ...Safety Warnings PLA450 User s Guide 7...

Страница 8: ...Safety Warnings PLA450 User s Guide 8...

Страница 9: ...e ENCRYPT Button 29 Introducing the Web Configurator 35 Wireless Tutorial 47 Network 55 Wireless LAN 57 LAN 81 HomePlug AV 85 Maintenance and Troubleshooting 95 System 97 Logs 101 Tools 105 Configurat...

Страница 10: ...Contents Overview PLA450 User s Guide 10...

Страница 11: ...g to Know Your PLA450 23 1 1 Overview 23 1 1 1 Wireless LAN Application 23 1 1 2 HomePlug AV 23 1 2 Ways to Manage the PLA450 24 1 3 Good Habits for Managing the PLA450 24 1 4 LEDs 25 Chapter 2 The WP...

Страница 12: ...5 Wireless Tutorial 47 5 1 Example Parameters 47 5 2 Configuring the PLA450 47 5 3 Configuring the Wireless Client 49 5 3 1 Connecting to a Wireless LAN 49 5 3 2 Creating and Using a Profile 52 Part...

Страница 13: ...n 82 Chapter 8 HomePlug AV 85 8 1 Overview 85 8 2 Privacy and Powerline Adapters 86 8 2 1 Setting Up a Private Powerline Network 87 8 2 2 Setting Up Multiple Powerline Networks 87 8 3 Configuring Your...

Страница 14: ...nternet Access 117 14 4 Resetting the PLA450 to Its Factory Defaults 118 14 5 Wireless Troubleshooting 119 14 6 HomePlug AV Troubleshooting 119 14 7 ENCRYPT Button Problems 120 14 8 Advanced Features...

Страница 15: ...Station Status 49 Figure 17 Connecting to a Wireless LAN 50 Figure 18 ZyXEL Utility Security Settings 51 Figure 19 ZyXEL Utility Confirm Save 51 Figure 20 ZyXEL Utility Link Info 51 Figure 21 ZyXEL Ut...

Страница 16: ...ork Temporarily Disconnected 106 Figure 58 Upload Error Message 106 Figure 59 Maintenance Tools Configuration 107 Figure 60 Configuration Restore Successful 108 Figure 61 Temporarily Disconnected 108...

Страница 17: ...9 0 KDE Network Configuration Devices 155 Figure 93 Red Hat 9 0 KDE Ethernet Device General 156 Figure 94 Red Hat 9 0 KDE Network Configuration DNS 156 Figure 95 Red Hat 9 0 KDE Network Configuration...

Страница 18: ...List of Figures PLA450 User s Guide 18...

Страница 19: ...Wireless LAN Advanced 73 Table 17 Network Wireless LAN QoS 75 Table 18 Network Wireless LAN QoS Application Priority Configuration 76 Table 19 Network Wireless LAN WPS 77 Table 20 Network Wireless LA...

Страница 20: ...bnet 1 139 Table 44 Subnet 2 140 Table 45 Subnet 3 140 Table 46 Subnet 4 140 Table 47 Eight Subnets 140 Table 48 24 bit Network Number Subnet Planning 141 Table 49 16 bit Network Number Subnet Plannin...

Страница 21: ...21 PART I Introduction Getting to Know Your PLA450 23 The WPS Button 27 The ENCRYPT Button 29 Wireless Tutorial 47 Introducing the Web Configurator 35...

Страница 22: ...22...

Страница 23: ...move freely anywhere in the coverage area and use resources on the wired network The Super G function allows compatible clients to connect to the PLA450 at up to 108 Mbps In the following figure wirel...

Страница 24: ...rline network with your PLA450 Web Configurator This is recommended for everyday management of the PLA450 using a supported web browser FTP Use File Transfer Protocol for firmware upgrades and configu...

Страница 25: ...COLOR STATUS DESCRIPTION POWER Green On The PLA450 is receiving power and functioning properly Off The PLA450 is not receiving power HomePlug Green On The PLA450 has a successful HomePlug AV connectio...

Страница 26: ...The PLA450 is sending receiving data through the wireless LAN Off The wireless LAN is not ready or has failed WPS Amber On WPS WiFi Protected Setup is configured on your device Blinking The PLA450 is...

Страница 27: ...n PBC is initiated by pressing a button on each WPS enabled device and allowing them to connect automatically You do not need to enter any information Not every WPS enabled device has a physical WPS b...

Страница 28: ...Chapter 2 PLA450 User s Guide 28...

Страница 29: ...can connect a number of devices on a powerline network but you can use the ENCRYPT button on only two devices at a time The PLA450 and PLA 400 v2 are shown below as examples 1 Place a powerline device...

Страница 30: ...f the HomePlug lights on both powerline devices do not light up the powerline devices are not connected Repeat steps 3 4 and 5 in this section If that doesn t work see the Troubleshooting in Section 1...

Страница 31: ...nnect them This sets up your powerline network between your powerline devices 3 3 Setting Up Multiple Networks You can use the ENCRYPT button to set up multiple powerline networks using your existing...

Страница 32: ...he connection process making certain you press the ENCRYPT buttons for the correct time and within two minutes of each other If that does not work see Section 14 7 on page 120 for suggestions 3 4 ENCR...

Страница 33: ...Chapter 3 The ENCRYPT Button PLA450 User s Guide 33 See Troubleshooting in Chapter 14 on page 120 for suggestions on problems with the ENCRYPT button and the lights...

Страница 34: ...Chapter 3 The ENCRYPT Button PLA450 User s Guide 34...

Страница 35: ...abled by default in Windows XP SP Service Pack 2 JavaScripts enabled by default Java permissions enabled by default Refer to the Troubleshooting chapter to see how to make sure these functions are all...

Страница 36: ...Inactivity Timer field expires default five minutes Simply log back into the PLA450 if this happens 6 Select the setup mode you want to use Click Go to Basic Setup if you want to view and configure b...

Страница 37: ...button for ten seconds or until the PWR LED begins to blink and then release it When the PWR LED begins to blink the defaults have been restored and the PLA450 restarts 4 4 Navigating the Web Configu...

Страница 38: ...the web configurator Select a number of seconds or None from the drop down list box to refresh all screen statistics automatically at the end of every time interval or to not refresh the screen statis...

Страница 39: ...m Status System Uptime This is the total time the PLA450 has been on Current Date Time This field displays your PLA450 s present date and time System Resource CPU Usage This displays what percentage o...

Страница 40: ...tus information Use this screen to access the summary statistics tables Network Wireless LAN General Use this screen to configure wireless LAN MAC Filter Use the MAC filter screen to configure the PLA...

Страница 41: ...r reset the factory defaults to your PLA450 Restart This screen allows you to reboot the PLA450 without turning the power off Config Mode General This screen allows you to display or hide the advanced...

Страница 42: ...s the reception speed in bytes per second on this port Up Time This is the total amount of time the line has been up System Up Time This is the total time the PLA450 has been on Poll Interval s Enter...

Страница 43: ...ions Table 8 Summary My Homeplug Network LABEL DESCRIPTION Site This PLA450 is the Local device All other devices on your network will be Remote MAC Address This field displays the MAC address of a Ho...

Страница 44: ...ed after Forward Error Correction If the error rate after FEC error correction is still high then this indicates a lot of noise at all frequencies on this section of your powerline Data transmission r...

Страница 45: ...typical level of attenuation may be 40 dB but may reach over 70 dB depending on line quality and distance A main cause of attenuation is the power requirements of appliances on your electrical circuit...

Страница 46: ...Chapter 4 Introducing the Web Configurator PLA450 User s Guide 46...

Страница 47: ...chapter the PLA450 is also referred to as an access point AP A computer with a wireless network card or USB PCI adapter is referred to here as a wireless client This chapter uses the M 302 utility scr...

Страница 48: ...selected 3 Enter SSID_Example3 as the SSID and select a channel 4 Set security mode to WPA PSK and enter ThisismyWPA PSKpre sharedkey in the Pre Shared Key field Click Apply 5 Open the Status screen...

Страница 49: ...to the AP Figure 16 AP Status WLAN Station Status 5 3 Configuring the Wireless Client This section describes how to connect the wireless client to a network 5 3 1 Connecting to a Wireless LAN The fol...

Страница 50: ...K pre shared key In this example the SSID is SSID_Example3 and the pre shared key is ThisismyWPA PSKpre sharedkey After you install the ZyXEL utility and then insert the wireless client follow the ste...

Страница 51: ...re 19 ZyXEL Utility Confirm Save 5 The ZyXEL utility returns to the Link Info screen while it connects to the wireless network using your settings When the wireless link is established the ZyXEL utili...

Страница 52: ...example if you connect a notebook computer to wireless networks at home and at work This example illustrates how to set up a profile and connect the wireless client to an access point configured for W...

Страница 53: ...ich you want to connect In this example WPA PSK Figure 23 ZyXEL Utility Profile Security 5 This screen varies depending on the encryption method you selected in the previous screen Enter the pre share...

Страница 54: ...hile it connects to the AP using your settings When the wireless link is established the ZyXEL utility icon in the system tray turns green and the Link Info screen displays details of the active conne...

Страница 55: ...55 PART II Network Wireless LAN 57 LAN 81 HomePlug AV 85...

Страница 56: ...56...

Страница 57: ...ireless network is the part in the blue circle In this wireless network devices A and B are called wireless clients The wireless clients use the access point AP to interact with other devices such as...

Страница 58: ...each other wirelessly without an AP or wireless router make sure you have the following 1 two or more wireless network cards adapters which vary according to your computers If you have a desktop use e...

Страница 59: ...wireless clients are allowed or not allowed to use the wireless network If a wireless client is allowed to use the wireless network it still has to have the correct settings SSID channel and security...

Страница 60: ...ould set up the strongest encryption that every wireless client in the wireless network supports For example suppose the AP does not have a local user database and you do not have a RADIUS server Ther...

Страница 61: ...t appropriate access point depending on the signal strength network utilization or other factors The roaming feature on the access points allows the access points to relay information about the wirele...

Страница 62: ...1 updates the new position of wireless station Y 6 3 1 Requirements for Roaming The following requirements must be met in order for wireless stations to roam between the coverage areas 1 All the acce...

Страница 63: ...than manually configuring wireless connections and security through a web configurator Your PLA450 uses WPS to set up a secure connection with other WPS enabled wireless devices in two ways The first...

Страница 64: ...s WPS PIN The default PIN is on a label on the PLA450 s bottom panel You can use this if the PIN is still at its default setting You can find the most up to date PIN in Section 6 11 on page 78 2 Look...

Страница 65: ...ID and WPA 2 PSK randomly The following figure shows a WPS enabled client installed in a notebook computer connecting to a WPS enabled access point Figure 30 How WPS works The roles of registrar and e...

Страница 66: ...gs are distributed in an example WPS setup The following figure shows an example network In step 1 both AP1 and Client 1 are unconfigured When WPS is activated on both they perform the handshake In th...

Страница 67: ...st set up the first enrollee by pressing the WPS button on the registrar and the first enrollee for example then check that it successfully enrolled then set up the second device in the same way WPS w...

Страница 68: ...s connection when you press Apply to confirm You must then change the wireless settings of your computer to match the PLA450 s new settings Click Network Wireless LAN to open the General screen Figure...

Страница 69: ...cy channel depending on your particular region Select a channel from the drop down list box The options vary depending on the IEEE 802 11 mode you are using and the country you are in Refer to Appendi...

Страница 70: ...PSK are the same The only difference between the two is that WPA PSK WPA2 PSK uses a simple common password instead of user specific credentials Type a pre shared key from 8 to 63 case sensitive ASCI...

Страница 71: ...ick Network Wireless LAN MAC Filter The screen appears as shown Group Key Update Timer The Group Key Update Timer is the rate at which the AP if using WPA PSK WPA2 PSK key management or RADIUS server...

Страница 72: ...Address table Select Deny to block access to the PLA450 MAC addresses not listed will be allowed to access the PLA450 Select Allow to permit access to the PLA450 MAC addresses not listed will be denie...

Страница 73: ...ween 256 and 2346 See Appendix D on page 159 for more information Fragmentation Threshold It is the maximum data fragment size that can be sent Enter a value between 256 and 2346 See Appendix D on pag...

Страница 74: ...available only if you select 802 11g or 802 11b g in the 802 11 Mode field Super G provides higher data transmission rates than 802 11g Select Disabled if your wireless clients do not support Super G...

Страница 75: ...ice and video traffic priority so their services operate more smoothly The PLA450 gives a service a priority level according to the ToS value in the IP header of packets it sends Select Application Pr...

Страница 76: ...ation Priority Configuration Name Type a description of the application priority Service The following is a description of the applications you can prioritize with WMM QoS Select a service from the dr...

Страница 77: ...used for video Mid Typically used for applications that do not fit into another priority For example Internet surfing Low Typically used for non critical background applications such as large file tr...

Страница 78: ...PS Station for the following screen to display Figure 42 Network Wireless LAN WPS Station Generate Click this to have the PLA450 use a different WPS PIN The new PIN is automatically generated The PLA4...

Страница 79: ...to press the button on the device you wish to connect with This button may either be a physical button on the outside of device or a menu button similar to the Push Button button on this screen Or inp...

Страница 80: ...Chapter 6 Wireless LAN PLA450 User s Guide 80...

Страница 81: ...55 255 255 0 24 bits 7 1 2 IP Address Every computer on your network must have a unique IP address The Internet Assigned Numbers Authority IANA has reserved the following three blocks of IP addresses...

Страница 82: ...254 individual addresses from 192 168 1 1 to 192 168 1 254 zero and 255 are reserved In other words the first three numbers specify the network number while the last number identifies an individual co...

Страница 83: ...se The subnet mask specifies the network number portion of an IP address Your PLA450 automatically calculates the subnet mask based on the IP address that you assign Unless you are implementing subnet...

Страница 84: ...Chapter 7 LAN PLA450 User s Guide 84...

Страница 85: ...information over your home s electrical wiring The PLA450 plugs into an ordinary outlet to create a new network which can extend to any other electrical outlet in any room of a house The following sec...

Страница 86: ...municates with each other HomePlug AV compliant powerline adapters they use encryption to scramble the information that is sent in the powerline network Encryption is like a secret code If you do not...

Страница 87: ...etworks can coexist on a single powerline circuit You might want to implement multiple powerline networks in a small office environment where you have two separate Ethernet networks Connect one powerl...

Страница 88: ...tworks on One Circuit 8 3 Configuring Your HomePlug AV Devices Click on Network HomePlug to see the screen below Use this screen to set up a HomePlug AV network and to check the status of HomePlug AV...

Страница 89: ...te network name Private Network Name is Select this option if you wish to make your powerline network more secure with a private Network Name Type the name of your private powerline network in the fie...

Страница 90: ...the device is not on the network The PLA450 is aware of it but cannot manage the device If you click Set the device s Network Name will not change You can add it to the network by clicking on Edit or...

Страница 91: ...vice For example if you have a digital media adapter such as the DMA 1100P on your network set up to play movie files on your T V you can set this device to High This is because if video or music traf...

Страница 92: ...tings Priority settings for VLAN Tags and ToS bits range from 0 to 7 with 7 as the highest 8 4 3 QoS Based on Traffic Type You can prioritize traffic on your powerline network based on four kinds of t...

Страница 93: ...ices on a network using IGMP to manage the multicast IGMP is assigned highest priority as it controls multicast services such as IGMP managed Multicast Stream which allows streamed traffic such as vid...

Страница 94: ...ettings For example ISPs often assign VLAN tags to traffic based on customer contracts or traffic type Selecting this option supports ISP assigned priority settings VLAN priority settings are not to b...

Страница 95: ...95 PART III Maintenance and Troubleshooting System 97 Logs 101 Tools 105 Configuration Mode 111 Language 113 Troubleshooting 115 Product Specifications and Wall Mounting Instructions 123...

Страница 96: ...96...

Страница 97: ...aracters long Spaces are not allowed but dashes and underscores _ are accepted Domain Name Enter the domain name if you know it here If you leave this field blank your DHCP server may assign a domain...

Страница 98: ...recommended using the fields as shown Old Password Type the default password or the existing password you use to access the system in this field New Password Type your new system password up to 30 ch...

Страница 99: ...n you set Time and Date Setup to Manual enter the new time in this field and then click Apply New Date yyyy mm dd This field displays the last updated date from the time server or the last date config...

Страница 100: ...ne is one hour ahead of GMT or UTC GMT 1 End Date Configure the day and time when Daylight Saving Time ends if you selected Daylight Savings The o clock field uses the 24 hour format Here are a couple...

Страница 101: ...w Log screen to see the logs for the categories that you selected in the Log Settings screen see Section 10 2 on page 102 Options include logs about system maintenance system errors access control all...

Страница 102: ...ecting many alert and or log categories especially Access Control may result in many e mails being sent Table 30 Maintenance Logs View Log LABEL DESCRIPTION Display The categories that you select in t...

Страница 103: ...address specified in this field If this field is left blank the PLA450 does not send logs via e mail Send Alerts To Alerts are real time notifications that are sent as soon as an event such as a DoS...

Страница 104: ...in 24 hour format for example 23 00 equals 11 00 pm to send the logs Clear log after sending mail Select the checkbox to delete all the logs after the PLA450 sends an E mail of the logs Syslog Logging...

Страница 105: ...onfiguration File Maintenance chapter for upgrading firmware using FTP TFTP commands Click Maintenance Tools Follow the instructions in this screen to upload firmware to your PLA450 Figure 55 Maintena...

Страница 106: ...g The PLA450 automatically restarts in this time causing a temporary network disconnect In some operating systems you may see the following icon on your desktop Figure 57 Network Temporarily Disconnec...

Страница 107: ...it is highly recommended that you back up your configuration file before making configuration changes The backup configuration file will be useful in case you need to return to your previous settings...

Страница 108: ...esktop Figure 61 Temporarily Disconnected If you uploaded the default configuration file you may need to change the IP address of your computer to be in the same subnet as that of the default PLA450 I...

Страница 109: ...o the chapter about introducing the web configurator for more information on the RESET button 11 3 Restart Screen System restart allows you to reboot the PLA450 without turning the power off Click Mai...

Страница 110: ...Chapter 11 Tools PLA450 User s Guide 110...

Страница 111: ...ce Config Mode General The following table describes the labels in the screen The following table lists the screens that you can view and configure only when you select Advanced Table 34 Maintenance C...

Страница 112: ...Chapter 12 Configuration Mode PLA450 User s Guide 112...

Страница 113: ...language in which the web configurator displays 13 1 Selecting Language Click Maintenance Language The following screen displays Figure 65 Maintenance Language Click the button for language you want...

Страница 114: ...Chapter 13 Language PLA450 User s Guide 114...

Страница 115: ...using the power adaptor or cord included with the PLA450 2 Make sure the power adaptor or cord is connected to the PLA450 and plugged in to an appropriate power source Make sure the power source is tu...

Страница 116: ...e sure you are using the correct IP address The default IP address is 192 168 1 2 If you changed the IP address Section 7 2 on page 82 use the new IP address If you changed the IP address and have for...

Страница 117: ...450 in the other session or ask the person who is logged in to log out 3 Disconnect and re connect the power adaptor or cord to the PLA450 4 If this does not work you have to reset the device to its f...

Страница 118: ...LA450 is sending or receiving a lot of information try closing some programs that use the Internet especially peer to peer applications 2 Check the signal strength If the signal strength is low try mo...

Страница 119: ...mputer is IEEE 802 11 compatible and supports the same wireless standard as the PLA450 4 Make sure your computer with a wireless adapter installed is within the transmission range of the PLA450 5 Chec...

Страница 120: ...Connect them to standard power outlets 2 Your power line adapters may be located close to large appliances such as refrigerators or air conditioners that cause interference with the power line signal...

Страница 121: ...than 10 seconds then try to reconnect pressing the ENCRYPT button for less than 3 seconds on both devices V I pressed the ENCRYPT button for more than 10 seconds but the HomePlug light is still on 5...

Страница 122: ...Chapter 14 Troubleshooting PLA450 User s Guide 122...

Страница 123: ...the rear panel Use this button to restore the PLA450 to its factory default settings Press for 1 second to restart the device Press for 5 seconds to restore to factory default settings Antenna The PLA...

Страница 124: ...t with HomePlug 1 0 devices but do not detect each other The range of a HomePlug AV network is 300 meters 984 feet in optimal conditions HomePlug AV is compatible with all OSs The maximum number of de...

Страница 125: ...the weight of the PLA450 with the connection cables 5 Align the holes on the back of the PLA450 with the screws on the wall Hang the PLA450 on the screws RFC 2236 Internet Group Management Protocol V...

Страница 126: ...Chapter 15 Product Specifications and Wall Mounting Instructions PLA450 User s Guide 126 Figure 66 Wall mounting Example...

Страница 127: ...d Index Pop up Windows JavaScripts and Java Permissions 129 IP Addresses and Subnetting 135 Setting up Your Computer s IP Address 143 Wireless LANs 159 Common Services 173 Legal Information 177 Custom...

Страница 128: ...128...

Страница 129: ...et Explorer Pop up Blockers You may have to disable pop up blocking to log into your device Either disable pop up blocking enabled by default in Windows XP SP Service Pack 2 or allow pop up blocking a...

Страница 130: ...b pop up blockers you may have enabled Figure 68 Internet Options Privacy 3 Click Apply to save this setting Enable pop up Blockers with Exceptions Alternatively if you only want to allow pop up windo...

Страница 131: ...e 131 Figure 69 Internet Options Privacy 3 Type the IP address of your device the web page that you do not want to have blocked with the prefix http For example http 192 168 167 1 4 Click Add to move...

Страница 132: ...y properly in Internet Explorer check that JavaScripts are allowed 1 In Internet Explorer click Tools Internet Options and then the Security tab Figure 71 Internet Options Security 2 Click the Custom...

Страница 133: ...gs Java Scripting Java Permissions 1 From Internet Explorer click Tools Internet Options and then the Security tab 2 Click the Custom Level button 3 Scroll down to Microsoft VM 4 Under Java permission...

Страница 134: ...va Permissions PLA450 User s Guide 134 JAVA Sun 1 From Internet Explorer click Tools Internet Options and then the Advanced tab 2 Make sure that Use Java 2 for applet under Java Sun is selected 3 Clic...

Страница 135: ...re a common street name the hosts on a network share a common network number Similarly as each house has its own house number each host on the network has its own unique identifying number the host ID...

Страница 136: ...is part of the host ID The following example shows a subnet mask identifying the network number in bold text and host ID of an IP address 192 168 1 2 in decimal By convention subnet masks always consi...

Страница 137: ...by a continuous number of zeros for the remainder of the 32 bit mask you can simply specify the number of ones instead of writing the value of each octet This is usually specified by writing a followe...

Страница 138: ...ws the company network before subnetting Figure 76 Subnetting Example Before Subnetting You can borrow one of the host ID bits to divide the network 192 168 1 0 into two separate sub networks The subn...

Страница 139: ...254 Example Four Subnets The previous example illustrated using a 25 bit subnet mask to divide a 24 bit address into two subnets Similarly to divide a 24 bit address into four subnets you need to bor...

Страница 140: ...t 3 IP SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192 168 1 128 IP Address Binary 11000000 10101000 00000001 10000000 Subnet Mask Binary 11111111 11111111 11111111 11000000 Subnet Addr...

Страница 141: ...ITS SUBNET MASK NO SUBNETS NO HOSTS PER SUBNET 1 255 255 255 128 25 2 126 2 255 255 255 192 26 4 62 3 255 255 255 224 27 8 30 4 255 255 255 240 28 16 14 5 255 255 255 248 29 32 6 6 255 255 255 252 30...

Страница 142: ...hat you entered You don t need to change the subnet mask computed by the PLA450 unless you are instructed to do otherwise Private IP Addresses Every machine on the Internet must have a unique address...

Страница 143: ...third party TCP IP application package TCP IP should already be installed on computers using Windows NT 2000 XP Macintosh OS 7 and later operating systems After the appropriate TCP IP components are...

Страница 144: ...click Add 3 Select the manufacturer and model of your network adapter and then click OK If you need TCP IP 1 In the Network window click Add 2 Select Protocol and then click Add 3 Select Microsoft fro...

Страница 145: ...ect Obtain an IP address automatically If you have a static IP address select Specify an IP address and type your information into the IP Address and Subnet Mask fields Figure 79 Windows 95 98 Me TCP...

Страница 146: ...the TCP IP Properties window 6 Click OK to close the Network window Insert the Windows CD if prompted 7 Turn on your Prestige and restart your computer when prompted Verifying Settings 1 Click Start a...

Страница 147: ...0 User s Guide 147 Figure 81 Windows XP Start Menu 2 In the Control Panel double click Network Connections Network and Dial up Connections in Windows 2000 NT Figure 82 Windows XP Control Panel 3 Right...

Страница 148: ...n Win XP and then click Properties Figure 84 Windows XP Local Area Connection Properties 5 The Internet Protocol TCP IP Properties window opens the General tab in Windows XP If you have a dynamic IP a...

Страница 149: ...In TCP IP Address type an IP address in IP address and a subnet mask in Subnet mask and then click Add Repeat the above two steps for each IP address you want to add Configure additional default gatew...

Страница 150: ...General tab in Windows XP Click Obtain DNS server address automatically if you do not know your DNS server IP address es If you know your DNS server IP address es click Use the following DNS server ad...

Страница 151: ...Connections window Network and Dial up Connections in Windows 2000 NT 11 Turn on your Prestige and restart your computer if prompted Verifying Settings 1 Click Start All Programs Accessories and then...

Страница 152: ...e 152 Figure 88 Macintosh OS 8 9 Apple Menu 2 Select Ethernet built in from the Connect via list Figure 89 Macintosh OS 8 9 TCP IP 3 For dynamically assigned settings select Using DHCP Server from the...

Страница 153: ...hanges to your configuration 7 Turn on your Prestige and restart your computer if prompted Verifying Settings Check your TCP IP properties in the TCP IP Control Panel window Macintosh OS X 1 Click the...

Страница 154: ...k in the Subnet mask box Type the IP address of your Prestige in the Router address box 5 Click Apply Now and close the window 6 Turn on your Prestige and restart your computer if prompted Verifying S...

Страница 155: ...DE Follow the steps below to configure your computer IP address using the KDE 1 Click the Red Hat button located on the bottom left corner select System Setting and click Network Figure 92 Red Hat 9 0...

Страница 156: ...resses and fill in the Address Subnet mask and Default Gateway Address fields 3 Click OK to save the changes and close the Ethernet Device General screen 4 If you know your DNS server IP address es cl...

Страница 157: ...th any plain text editor If you have a dynamic IP address enter dhcp in the BOOTPROTO field The following figure shows an example Figure 96 Red Hat 9 0 Dynamic IP Address Setting in ifconfig eth0 If y...

Страница 158: ...Enter ifconfig in a terminal screen to check your TCP IP properties Figure 100 Red Hat 9 0 Checking TCP IP Properties nameserver 172 23 5 1 nameserver 172 23 5 2 root localhost init d network restart...

Страница 159: ...dent Basic Service Set IBSS The following diagram shows an example of notebook computers using wireless adapters to form an ad hoc wireless LAN Figure 101 Peer to Peer Communication in an Ad hoc Netwo...

Страница 160: ...d connection between APs is called a Distribution System DS This type of wireless LAN topology is called an Infrastructure WLAN The Access Points not only provide communication with the wired network...

Страница 161: ...lly overlap however To avoid interference due to overlap your AP should be on a channel at least five channels away from a channel that an adjacent AP is using For example if your region has 11 channe...

Страница 162: ...uested transmission Stations can send frames smaller than the specified RTS CTS directly to the AP without the RTS Request To Send CTS Clear to Send handshake You should only configure RTS CTS if the...

Страница 163: ...ort it and to provide more efficient communications Use the dynamic setting to automatically use short preamble when all wireless devices on the network support it otherwise the PLA450 uses long pream...

Страница 164: ...EE 802 1x are User based identification that allows for roaming Support for RADIUS Remote Authentication Dial In User Service RFC 2138 2139 for centralized user profile and accounting management on a...

Страница 165: ...and the RADIUS server for user accounting Accounting Request Sent by the access point requesting accounting Accounting Response Sent by the RADIUS server to indicate that it has started or stopped acc...

Страница 166: ...eless clients for mutual authentication The server presents a certificate to the client After validating the identity of the server the client sends a different certificate to the server The exchange...

Страница 167: ...efines stronger encryption authentication and key management than WPA Key differences between WPA or WPA2 and WEP are improved data encryption and user authentication If both an AP and the wireless cl...

Страница 168: ...th and the packet is dropped By generating unique data encryption keys for every data packet and by creating an integrity checking mechanism MIC with TKIP and AES it is more difficult to decrypt data...

Страница 169: ...e wireless client s authentication request to the RADIUS server 2 The RADIUS server then checks the user s identification against its database and grants or denies network access accordingly 3 A 256 b...

Страница 170: ...ou should configure for each authentication method or key management protocol type MAC address filters are not dependent on how you configure these security features Table 53 Wireless Security Relatio...

Страница 171: ...r site each 1dB increase in gain results in a range increase of approximately 5 Actual results may vary depending on the network environment Antenna gain is sometimes specified in dBi which is how muc...

Страница 172: ...n a direct line of sight to each other to attain the best performance For omni directional antennas mounted on a table desk and so on point the antenna up For omni directional antennas mounted on a wa...

Страница 173: ...USER this is the IP protocol number Description This is a brief explanation of the applications that use this service or the situations in which this service is used Table 54 Commonly Used Services N...

Страница 174: ...net chat program NEWS TCP 144 A protocol for news groups NFS UDP 2049 Network File System NFS is a client server distributed file service that provides transparent file sharing for network environment...

Страница 175: ...mainframes midrange systems UNIX systems and network servers SSH TCP UDP 22 Secure Shell Remote Login Program STRM WORKS UDP 1558 Stream Works Protocol SYSLOG UDP 514 Syslog allows you to send system...

Страница 176: ...Appendix E Common Services PLA450 User s Guide 176...

Страница 177: ...Trademarks ZyNOS ZyXEL Network Operating System is a registered trademark of ZyXEL Communications Inc Other trademarks mentioned in this publication are used for identification purposes only and may...

Страница 178: ...aration distance of at least 20 cm must be maintained between the antenna of this device and all persons This transmitter must not be co located or operating in conjunction with any other antenna or t...

Страница 179: ...nditions Note Repair or replacement as provided under this warranty is the exclusive remedy of the purchaser This warranty is in lieu of all other warranties express or implied including any implied w...

Страница 180: ...Appendix F Legal Information PLA450 User s Guide 180...

Страница 181: ...il support zyxel com tw Sales E mail sales zyxel com tw Telephone 886 3 578 3942 Fax 886 3 578 2439 Web www zyxel com www europe zyxel com FTP ftp zyxel com ftp europe zyxel com Regular Mail ZyXEL Com...

Страница 182: ...Web www zyxel fi Regular Mail ZyXEL Communications Oy Malminkaari 10 00700 Helsinki Finland France E mail info zyxel fr Telephone 33 4 72 52 97 97 Fax 33 4 72 52 19 20 Web www zyxel fr Regular Mail Z...

Страница 183: ...awa ku Tokyo 141 0022 Japan Kazakhstan Support http zyxel kz support Sales E mail sales zyxel kz Telephone 7 3272 590 698 Fax 7 3272 590 689 Web www zyxel kz Regular Mail ZyXEL Kazakhstan 43 Dostyk Av...

Страница 184: ...zei 1A 03 715 Warszawa Poland Russia Support http zyxel ru support Sales E mail sales zyxel ru Telephone 7 095 542 89 29 Fax 7 095 542 89 25 Web www zyxel ru Regular Mail ZyXEL Russia Ostrovityanova 3...

Страница 185: ...ZyXEL Thailand Co Ltd 1 1 Moo 2 Ratchaphruk Road Bangrak Noi Muang Nonthaburi 11000 Thailand Ukraine Support E mail support ua zyxel com Sales E mail sales ua zyxel com Telephone 380 44 247 69 78 Fax...

Страница 186: ...Appendix G Customer Support PLA450 User s Guide 186...

Страница 187: ...thority CA 166 certifications 177 notices 178 viewing 178 changing the NMK 87 channel 39 57 161 interference 161 configuration 107 backup 107 reset the factory defaults 108 restore 107 configuration m...

Страница 188: ...itialization vector IV 168 Internet Assigned Numbers Authority See IANA IP address 81 82 assignment 81 dynamic 82 K key 61 length 61 strength 61 L LAN 81 defaults 81 overview 81 setup 81 link type 39...

Страница 189: ...erver 59 shared secret key 165 registration product 179 related documentation 3 reset button 37 108 resetting the device 37 restart 109 restore configuration 107 RF Radio Frequency 124 roaming 61 72 r...

Страница 190: ...68 IEEE 802 11b 74 IEEE 802 11g 74 interference 161 LAN 119 MAC address filter 59 network example 57 output power 73 security 58 59 119 163 security parameters 170 SSID 57 stations 42 Super G 74 tutor...

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