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DWL-2200AP
Инструкция по эксплуатации Страница: 62

D-Link DWL-2200AP [62/192] Navigating to time protocol settings

Enabling the Network Time Protocol Server

Navigating to Time Protocol Settings

To enable an NTP server, navigate to the Advanced > Time Protocol tab, and update

the fields as described below.

Содержание

Contents 2
Contents of package 3
Package contents 3
System requirements for configuration 3
Connections 4
Overview of the d link dwl 2210ap 5
Features and benefits 6
Ieee standards support and wi fi compliance 6
Wireless features 6
Clustering and auto management 7
Features and benefits continued 7
Out of the box guest interface 7
Security features 7
Clustering and auto management continued 8
Features and benefits continued 8
Maintainability 8
Networking 8
What s next 8
D link dwl 2210ap 9
Default settings and supported administrator client platforms 9
Prelaunch checklist 9
Default settings 10
Option default settings related information 10
Default settings continued 11
Option default settings related information 11
Default settings continued 12
Option default settings related information 12
The d link dwl 2210ap is not designed to function as a gateway to the internet to connect your wireless lan wlan to other lan s or to the internet you need a gateway device 12
What the access point does not provide 12
Administrator s computer 13
Configuration and administration of the d link dwl 2210ap is accomplished with the kickstart utility which you run from the cd and through a web based user interface the dwl 2210ap must be installed into a dhcp enabled network in order to use the kickstart utility for configuration the following table describes the minimum requirements for the administrator s computer 13
Required software or component description 13
Administrator s computer continued 14
Required software or component description 14
In order to connect to the access point wireless clients need the following software and hardware 15
Multiple client operating systems are supported clients can be laptops or desktops personal digital assistants pdas or any other hand held portable or stationary device equipped with a wi fi adapter and supporting drivers 15
Required software or component description 15
The d link dwl 2210ap provides wireless access to any client with a properly configured wi fi client adapter for the 802 1b and 802 1g modes in which the access point is running 15
Wireless client computers 15
Required software or component description 16
Wireless client computers continued 16
Dynamic ip addressing 17
How does the access point obtain an ip address at startup 17
Understanding dynamic and static ip addressing on the d link dwl 2210ap 17
Configuring the ip address of the dwl 2210ap in a network with no dhcp server 18
Recovering an ip address 18
Static ip addressing 18
Understanding dynamic and static ip addressing 18
Access point hardware and ports 19
Quick steps for the setup and launch of your wireless network 19
Step 1 unpack the access point 19
Step 1 unpack the access point continued 20
Step 2 connect the access point to network and power 20
What s inside the box 20
Step 2 connect the access point continued 21
Step 3 run kickstart wizard on the cd rom to find access points on a dhcp network 22
Step 3 run kickstart wizard continued 23
Enter the username and password and click ok 24
Go to the access point administration web pages by taking the link provided on the kickstart page 24
Step 3 run kickstart wizard continued 24
Step 4a log on to the administration web pages when using kickstart in a dhcp network 24
When you follow the link from kickstart to the d link dwl 2210ap administration web pages you are prompted for a user name and password 24
Step 4b log on to the administration web pages without kickstart in a non dhcp network 25
Viewing basic settings for access points 25
Step 5 configure basic settings 26
Make sure the access point is connected to the lan 27
Secure and fine tune the access point using advanced features 27
Test lan connectivity with wireless clients 27
What s next 27
Configuring basic settings 28
Navigating to basic settings 29
Field description 30
Review describe the access point 30
Field description 31
Provide administrator password and wireless network name 31
Field description 32
Set configuration policy for new access points 32
Summary of settings 33
Update basic settings 33
All the cluster settings tabs on the administration web pages include visual indicator icons showing current network activity 34
Basic settings for a standalone access point 34
For more information see standalone mode and adding an access point to a cluster in this manual 34
Icon description 34
The basic settings tab for a standalone access point indicates only that the current mode is standalone and provides a button for adding the access point to a cluster group if you click on any of the cluster tabs on the administration pages for an access point in standalone mode you will be redirected to the basic settings page because cluster settings do not apply to standalone aps 34
Your network at a glance understanding indicator icons 34
Managing access points and clusters 35
How many aps can a cluster support 36
Navigating to access points management 36
Understanding clustering 36
What is a cluster 36
What kinds of aps can cluster together 37
Which settings are shared as part of the cluster configuration and which are not 37
Cluster mode 38
Standalone mode 38
Auto synch of cluster configuration 39
Cluster formation 39
Cluster size and membership 39
Intra cluster security 39
Field description 40
From this tab you can view location descriptions ip addresses enable activate or disable deactivate clustered access points and remove access points from the cluster you can also modify the location description for an access point 40
Note that auto synchronization always occurs during configuration updates that affect the cluster but the processing time is usually negligible the auto synch progress bar is displayed only for longer than usual wait times 40
Standalone access points those which are not members of the cluster are not shown on this page 40
The access points tab provides information about all access points in the cluster 40
The ip address links provide a way to navigate to configuration settings and data on an access point 40
The progress bar indicates that the system is busy performing an auto synch of the updated configuration to all aps in the cluster the administration web pages are not editable during the auto synch 40
Understanding access point settings 40
Adding an access point to a cluster 41
Modifying the location description 41
Removing an access point from the cluster 41
Navigating to an ap by using its ip address in a url 42
Navigating to configuration information for a specific ap and managing standalone aps 42
Managing user accounts 43
Adding a user 44
Fields description 44
Navigating to user management for clustered access points 44
Viewing user accounts 44
Editing a user account 45
Enabling and disabling user accounts 45
Fields description 45
Disabling a user account 46
Enabling a user account 46
Removing a user account 46
Navigating to session monitoring 47
Session monitoring 47
A session in this context is the period of time in which a user on a client device station with a unique mac address maintains a connection with the wireless network the session begins when the client logs on to the network and the session ends when the client either logs off intentionally or loses the connection for some other reason 48
Details about the session information shown is described below 48
Field description 48
The sessions page shows information on client stations associated with access points in the cluster each client is identified by user name and user mac address along with the ap location to which it is currently connected 48
To view a particular statistic for client sessions select an item from the display drop down list and click go you can view information on idle time data rate signal utilization and so on all of which are described in detail in the table below 48
Understanding session monitoring information 48
Field description 49
Refreshing session information 49
Sorting session information 49
To order sort the information shown in the tables by a particular indicator click on the column label by which you want to order things for example if you want to see the table rows ordered by utilization rate click on the utilization column label the entries will be sorted by utilization rate 49
To view information on all access points select the show all access points radio button at the top of the page 49
To view session information on a particular access point select the show only this access point radio button and choose the access point name from the drop down menu 49
Viewing session information for access points 49
You can force an update of the information displayed on the session monitoring page by clicking the refresh button 49
You can view session information for all access points on the network at the same time or set the display to show session information for a specified access point chosen from the drop down menu at the top of the screen 49
Setting the ethernet wired interface 50
Navigating to ethernet 51
Configuring an internal lan and a guest network 52
Enabling or disabling guest access 52
Setting the dns name 52
Enabling guest access will enable the vlan settings where you must provide a vlan id see also configuring guest interface ethernet settings in this manual 53
Field description 53
If you enable guest access two virtual lans vlan s will be used one for the internal network and one for the guest network to use vlans the lan port on the access point must be connected to a tagged port on a vlan capable switch and then you must define two different virtual lans on this administration page for more information see setting up guest access in this manual 53
Using vlans for the guest network 53
Configuring internal interface ethernet settings 54
Field description 54
To configure ethernet wired settings for the internal lan fill in the fields as described below 54
Configuring guest interface ethernet settings 55
Field description 55
To apply your changes click update 55
To configure ethernet settings for the guest interface fill in the fields as described below 55
Updating settings 55
Setting the wireless interface 56
Navigating to wireless settings 57
Configuring the radio interface 58
Field description 58
The radio interface allows you to set the radio channel and 802 1 mode as described below 58
Configuring internal lan wireless settings 59
Field description 59
The internal settings describe the mac address read only and network name also known as the ssid for the internal wireless lan wlan as described below 59
Configuring guest network wireless settings 60
Field description 60
The guest settings describe the mac address read only and wireless network name ssid for the guest network as described below configuring an access point with two different network names ssids allows you to leverage the guest interface feature on the d link dwl 2210ap for more information see setting up guest access in this manual 60
To apply your changes click update 60
Updating settings 60
Enabling the network time protocol server 61
Navigating to time protocol settings 62
Enabling or disabling a network time protocol ntp server 63
Field description 63
To apply your changes click update 63
To configure your access point to use a network time protocol ntp server first enable the use of ntp and then select the ntp server you want to use to shut down ntp service on the network disable ntp on the access point 63
Updating settings 63
Configuring security 64
Understanding security issues on wireless networks 64
Comparison of security modes for key management authentication and encryption algorithms 65
How do i know which security mode to use 65
For information on how to configure static wep security mode see static wep under configuring security settings in this manual 67
Ieee 802 x is the standard for passing the extensible authentication protocol eap over an 802 1 wireless network using a protocol called eap encapsulation over lans eapol this is a newer more secure standard than static wep 67
Key management encryption algorithm user authentication 67
Recommendations 67
See also 67
Static wep was designed to provide the security equivalent of sending unencrypted data through an ethernet connection however it has major flaws and it does not provide even this intended level of security 67
Therefore static wep is not recommended as a secure mode the only time to use static wep is when interoperability issues make it the only option available to you and you are not concerned with the potential of exposing the data on your network 67
When to use ieee 802 x 67
Does prohibiting the broadcast ssid enhance security 71
Broadcast ssid and security mode 72
Configuring security settings 72
Navigating to security settings 72
Field description 73
Guest network 73
Plain text means any data transferred to and from the d link dwl 2210ap is not encrypted 73
Plain text mode can be useful during initial network configuration or for problem solving but it is not recommended for regular use on the internal network because it is not secure 73
Plain text mode is the only mode in which you can run the guest network which is by definition an easily accessible unsecure lan always virtually or physically separated from any sensitive information on the internal lan for example the guest network might simply provide internet and printer access for day visitors 73
Plaintext 73
There are no further options for plaintext mode 73
Static wep 74
Field description 75
Field description 76
Ieee 802 x 79
Field description 80
If you selected ieee 802 x security mode provide the following 80
Wpa with radius 81
Field description 82
Field description 83
Field description 84
Wi fi protected access wpa with pre shared key psk is a wi fi alliance subset of ieee 802 1i which includes temporal key integrity protocol tkip advanced encryption algorithm aes and counter mode cbc mac protocol ccmp mechanisms psk employs a pre shared key this is used for an initial check of credentials only if you selected wpa psk security mode provide the following 84
Wpa psk 84
Configuring radio settings 85
Understanding radio settings 85
Updating settings 85
Navigating to radio settings 86
Configuring radio settings 87
Field description 87
Field description 88
Field description 89
To apply your changes click update 89
Updating settings 89
Controlling access by mac address filtering 90
Navigating to mac filtering settings 91
Updating settings 92
Using mac filtering 92
Identifying the imbalance overworked or under utilized access points 93
Load balancing 93
Understanding load balancing 93
Load balancing and qos 94
Navigating to load balancing settings 94
Specifying limits for utilization and client associations 94
Configuring load balancing 95
Field description 95
To configure load balancing enable load balancing and set limits and behavior to be triggered by a specified utilization rate of the access point 95
Configuring queues for quality of service qos 96
Field description 96
Quality of service qos provides you with the ability to specify parameters on multiple queues for increased throughput and better performance of differentiated wireless traffic like voice over ip voip video and streaming media as well as traditional ip data over the d link dwl 2210ap 96
To apply your changes click update settings 96
Updating settings 96
1e and wme standards support 97
Qos and load balancing 97
Understanding qos 97
Qos queues and parameters to coordinate traffic flow 98
Configuring qos queues 102
Navigating to qos settings 102
Field description 103
Field description 104
To apply your changes click update settings 104
Updating settings 104
Configuring the wireless distribution system wds 105
Understanding the wireless distribution system 105
Using wds to bridge distant wired lans 106
Using wds to extend the network beyond the wired coverage area 106
Backup links and unwanted loops in wds bridges 107
Security considerations related to wds bridges 107
Navigating to wds settings 108
Configuring wds settings 109
Field description 110
Example of configuring a wds link 111
Field description 111
When using wds be sure to configure wds settings on both access points on the wds link for example to create a wds link between a pair of access points myap1 and myap2 do the following 111
Updating settings 112
Configuring the guest interface 113
Setting up guest access 113
Understanding the guest interface 113
Configuring internal and guest vlans 114
Configuring the welcome screen captive portal 115
Using the guest network as a client 115
Deployment example 116
Maintenance and monitoring 117
Ethernet wired settings 118
Interfaces 118
Event log 119
Wireless settings 119
Statistics 120
Field description 121
This page provides some basic information about the current access point and a real time display of the transmit and receive statistics for this access point as described in the following table all transmit and receive statistics shown are totals since the access point was last started if the ap is rebooted these figures indicate transmit receive totals since the reboot 121
Associated wireless clients 122
Link integrity monitoring 122
What is the difference between an association and a session 122
Rebooting the access point 123
Resetting the configuration 124
Upgrading the firmware 125
Click ok to confirm the upgrade and start the process 126
Click update to apply the new firmware image 126
Update 126
Upgrade tab and also on the basic settings tab if the upgrade was successful the updated version name or number will be indicated 126
Upon clicking update for the firmware upgrade a popup confirmation window is displayed that describes the upgrade process 126
Verifying the firmware upgrade 126
Neighbors 127
Field description 128
Field description 129
Appendix a configuring security settings on wireless clients 130
Network infrastructure and choosing between built in or external authentication server 131
Accessing the microsoft windows wireless client security settings 132
Make sure the wireless client software is up to date 132
Configuring a client to access an unsecure network plain text mode 134
Configuring static wep security on a client 135
Association tab 136
Then configure wep security on each client as follows 136
Connecting to the wireless network with a static wep client 137
Configuring ieee 802 x security on a client 138
Ieee 802 x client using eap peap 138
Association tab 140
Authentication tab 140
Click configure to bring up the eap mschap v2 properties dialog 140
Click ok on all dialogs starting with the eap mschap v2 properties dialog to close and save your changes 140
Click properties to bring up the protected eap properties dialog and configure the following settings 140
Configure the following settings on the association tab on the network properties dialog 140
Configure this setting on the authentication tab 140
Ieee 802 x peap clients should now be able to associate with the access point client users will be prompted for a user name and password to authenticate with the network 140
Logging on to the wireless network with an ieee 802 x peap client 140
On this dialog disable click to uncheck the option to automatically use my windows login name etc 140
Protected eap properties dialog 140
Ieee 802 x client using eap tls certificate 141
If you configured the d link dwl 2210ap to use ieee 802 x security mode with an external radius server 142
Then configure ieee 802 x security with certificate authentication on each client as follows 142
Association tab 143
Authentication tab 143
Configure the following settings on the association tab on the network properties dialog 143
Configure these settings on the authentication tab 143
Configuring wpa with radius security on a client 145
Wpa with radius client using eap peap 145
Association tab 148
Authentication tab 148
Click configure to bring up the eap mschap v2 properties dialog 148
Click ok on all dialogs starting with the eap mschap v2 properties dialog to close and save your changes 148
Click properties to bring up the protected eap properties dialog and configure the following settings 148
Configure the following settings on the association and authentication tabs on the network properties dialog 148
Configure this setting on the authentication tab 148
Logging on to the wireless network with a wpa peap client 148
On this dialog disable click to uncheck the option to automatically use my windows login name etc so that upon login you will be prompted for user name and password 148
Protected eap properties dialog 148
Wpa with radius peap clients should now be able to associate with the access point client users will be prompted for a user name and password to authenticate with the network 148
Wpa with radius client using eap tls certificate 149
Association tab 151
Authentication tab 151
Click ok on all dialogs to close and save your changes 151
Click properties to bring up the smart card or other certificate properties dialog and enable the validate server certificate option 151
Configure the following settings on the association tab on the network properties dialog 151
Configure these settings on the authentication tab 151
Logging on to the wireless network with a wpa client using a certificate 151
Smart card or other certificate properties dialog 151
To complete the client configuration you must now obtain a certificate from the radius server and install it on this client for information on how to do this see obtaining a tls eap certificate for a client in this manual 151
Wpa clients should now be able to connect to the access point using their tls certificates the certificate you installed is used when you connect so you will not be prompted for login information the certificate is automatically sent to the radius server for authentication and authorization 151
Configuring wpa psk security on a client 152
Association tab 153
Authentication tab 153
Click ok on the wireless network properties dialog to close it and save your changes 153
Connecting to the wireless network with a wpa psk client 153
Wpa psk clients should now be able to associate and authenticate with the access point as a client you will not be prompted for a key the tkip or aes key you configured on the client security settings is automatically used when you connect 153
Configuring an external radius server to recognize the d link dwl 2210ap 154
Click yes to proceed to the secure web page for the server 158
Go to the following url in a web browser 158
Https ipaddressofserver certsrv 158
Obtaining a tls eap certificate for a client 158
This is an initial onetime step that must be completed on each client that uses either of these modes with certificates in this procedure we use the microsoft certificate server as an example 158
To obtain a certificate for a client follow these steps 158
Where ipaddressofserver is the ip address of your external radius server or of the certificate authority ca depending on the configuration of your infrastructure 158
Wireless clients configured to use either wpa with radius or ieee 802 x security modes with an external radius server that supports tls eap certificates must obtain a tls certificate from the radius server 158
Click request a certificate to get the login prompt for the radius server 159
Click user certificate on the next page displayed 159
Provide a valid user name and password to access the radius server 159
The welcome screen for the certificate server is displayed in the browser 159
Appendix b troubleshooting 162
Cluster recovery 162
Reboot or reset access point 162
Stop clustering and reset each access point in the cluster 162
Table 1 163
Table 2 164
Glossary 166
Access point 167
Ad hoc mode 168
Basic rate set 168
Beacon 168
Bridge 168
Broadcast 169
Broadcast address 169
Channel 169
Csma ca 170
Dynamic ip address 171
Ethernet 171
Gateway 172
Infrastructure mode 173
Intrusion detection 173
Ip address 173
Jitter 174
Latency 174
Lease time 175
Mdi and mdi x 175
Mschap v2 175
Multicast 176
Network address 176
Packet 177
Packet loss 177
Port forwarding 177
Public key 178
Radius 178
Router 179
Rts threshold 179
Shared key 179
Tcp ip 181
Unicast 181
Wireless networking framework 183
Technical specifications 184
Technical specifications continued 185
Technical specifications continued 186
Technical specifications continued 187
Tech support for customers within canada 188
Tech support for customers within the united states 188
Technical support 188
Tttttechni echni echni echni echnical support cal support cal support cal support cal support 188
Warranty 189
By d link corporation d link systems inc all rights reserved 191
Copyright statement no part of this publication or documentation accompanying this product may be reproduced in any form or by any means or used to make any derivative such as translation transformation or adaptation without permission from d link corporation d link systems inc as stipulated by the united states copyright act of 1976 contents are subject to change without prior notice copyrigh 191
For detailed warranty outside the united states please contact corresponding local d link office 191
Registration 192

D-Link DWL-2200AP [62/192] Navigating to time protocol settings

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