Login
- Table of Contents
- Related Documents
-
| Title | Size | Download |
|---|---|---|
| 01-WLAN access configuration | 414.43 KB |
Whitelist- and blacklist-based access control
Restrictions and guidelines: WLAN access configuration
Configuring a service template
Configuring a description for a service template
Setting the maximum number of associated clients on a radio for a service template
Binding a service template to a radio
Configuring an AP to not inherit the specified service template from the AP group
Configuring client data forwarding
Specifying the client traffic forwarder
Enabling client traffic forwarding
Setting the encapsulation format for client data frames
Specifying the method for APs to process traffic from unknown clients
Enabling client association at the AC or APs
Specifying the Web server to which client information is reported
Enabling generation of client logs in the specified format
Setting the VLAN allocation method for clients
Configuring clients to prefer the authorization VLAN after roaming
Enabling immediate client association upon successful local authentication
Setting the aging timer for the cache of clients
Setting the idle period before client reauthentication
Configuring client maintenance
Setting the client idle timeout
Performing a wireless link quality test
Configuring client statistics reporting
Enabling client O&M statistics reporting
Configuring client association ratio optimization
Enabling beacon frames and probe responses to carry BSS Load IEs
Configuring client access control
Specifying a permitted AP group for client association
Specifying a permitted SSID for client association
Adding a client to the whitelist
Adding a client to the static blacklist
Configuring the dynamic blacklist
Configuring ACL-based access control
Disabling an AP from responding to broadcast probe requests
Enabling SNMP notifications for WLAN access
Display and maintenance commands for WLAN access
WLAN access configuration examples
Example: Configuring WLAN access
Example: Configuring whitelist-based access control
Example: Configuring static blacklist-based access control
Example: Configuring ACL-based access control
Configuring WLAN access
About WLAN access
Wireless access is provided by APs deployed at the edge of a wired network. The APs connect to the uplink through wired connections and provide wireless access services to downlink clients.
WLAN access process
A wireless client can access a WLAN only when it completes the scanning, link layer authentication, association, and WLAN authentication processes.
For more information about data link layer authentication, see WLAN Security Configuration Guide. For more information about WLAN authentication, see User Access and Authentication Configuration Guide.
Figure 1 WLAN access process
Scanning
Active scanning
A wireless client periodically scans surrounding wireless networks by sending probe requests. It obtains network information from received probe responses. Based on whether a probe request carries an SSID, active scanning can be divided into the following types:
· Active scanning of all wireless networks.
As shown in Figure 2, the client periodically sends a probe request on each of its supported channels to scan wireless networks. APs that receive the probe request send a probe response that carries the available wireless network information. The client associates with the optimal AP.
Figure 2 Scanning all wireless networks
· Active scanning of a specific wireless network.
As shown in Figure 3, the client periodically sends a probe request carrying the specified SSID or the SSID of the wireless network it has been associated with. When an AP that can provide wireless services with the specified SSID receives the probe request, it sends a probe response.
Figure 3 Scanning a specific wireless network
Passive scanning
As shown in Figure 4, the clients periodically listen for beacon frames sent by APs on their supported channels to get information about surrounding wireless networks. Then the clients select an AP for association. Passive scanning is used when clients want to save power.
Association
A client sends an association request to the associated AP after passing date link layer authentication. Upon receiving the request, the AP determines the capability supported by the wireless client and sends an association response to the client. Then the client is associated with the AP.
Client access control
The following client access control methods are available:
· AP group-based access control—Allows clients associated with APs in the specified AP group to access the WLAN.
· SSID-based access control—Allows clients associated with the specified SSID to access the WLAN.
· Whitelist- and blacklist-based access control—Uses the whitelist and blacklists to control client access.
· ACL-based access control—Uses ACL rules bound to APs or service templates to control client access.
AP group-based access control
As shown in Figure 5, for AP group-based access control, configure AP group 1 as the permitted AP group for Client 1 and Client 2, and configure AP group 2 as the permitted AP group for Client 3.
When a client passes authentication, the server sends the related user profile to the AC. The AC examines whether the AP with which the client associates is in the permitted AP group. If it is, the client is allowed to access the WLAN. If it is not, the AC logs off the client.
Figure 5 AP group-based access control
SSID-based access control
As shown in Figure 6, for SSID-based access control, configure ssida as the permitted SSID for Client 1 and Client 2, and configure ssidb as the permitted SSID for Client 3.
When a client passes authentication, the server sends the related user profile to the AC. The AC examines whether the associated SSID of the client is the permitted SSID. If it is, the client is allowed to access the WLAN. If it is not, the AC logs off the client.
Figure 6 SSID-based access control
Whitelist- and blacklist-based access control
You can configure the whitelist or blacklists to filter frames from clients for client access control.
Whitelist-based access control
The whitelist contains the MAC addresses of all clients allowed to access the WLAN. Frames from clients not in the whitelist are discarded. This list is manually configured.
Blacklist-based access control
The following blacklists are available for access control:
· Static blacklist—Contains the MAC addresses of clients forbidden to access the WLAN. This list is manually configured.
· Dynamic blacklist—Contains the MAC addresses of clients forbidden to access the WLAN. An AP adds the MAC address of a client forbidden to access the WLAN to the list when WIPS is configured or when URL redirection is enabled for WLAN MAC authentication clients. The entries in the list are removed when the aging time expires. The dynamic blacklist can take effect on the AC or on APs, depending on the configuration. For more information about WIPS, see WLAN Security Configuration Guide. For more information about WLAN MAC authentication, see User Access and Authentication Configuration Guide.
Working mechanism
When an AP receives an association request and sends an Add Mobile message to the AC, the AC performs the following operations to determine whether to permit the client:
1. Searches the whitelist:
¡ If the client MAC address does not match any entry in the whitelist, the client is rejected.
¡ If a match is found, the client is permitted.
2. Searches the static and dynamic blacklists if no whitelist entries exist:
¡ If the client MAC address matches an entry in either blacklist, the client is rejected.
¡ If no match is found, or no blacklist entries exist, the client is permitted.
Figure 7 Whitelist- and blacklist-based access control
ACL-based access control
This feature controls client access by using ACL rules bound to an AP or a service template.
Upon receiving an association request from a client, the device performs the following actions:
· Allows the client to access the WLAN if a match is found and the rule action is permit.
· Denies the client's access to the WLAN if no match is found or the matched rule has a deny statement.
Restrictions and guidelines: WLAN access configuration
You can configure APs by using the following methods:
· Configure APs one by one in AP view.
· Assign APs to an AP group and configure the AP group in AP group view.
· Configure all APs in global configuration view.
For an AP, the settings made in these views for the same parameter take effect in descending order of AP view, AP group view, and global configuration view.
WLAN access tasks at a glance
To configure WLAN access, perform the following tasks:
1. Configuring wireless services
¡ Configuring a service template
¡ (Optional.) Configuring a description for a service template
¡ (Optional.) Setting the maximum number of associated clients on a radio for a service template
¡ Binding a service template to a radio
¡ (Optional.) Configuring an AP to not inherit the specified service template from the AP group
2. (Optional.) Configuring client data forwarding
¡ Specifying the client traffic forwarder
¡ Enabling client traffic forwarding
¡ Setting the encapsulation format for client data frames
¡ Specifying the method for APs to process traffic from unknown clients
3. (Optional.) Configuring client management
¡ Enabling client association at the AC or APs
¡ Specifying the Web server to which client information is reported
¡ Enabling generation of client logs in the specified format
¡ Setting the VLAN allocation method for clients
¡ Configuring clients to prefer the authorization VLAN after roaming
¡ Enabling immediate client association upon successful local authentication
¡ Setting the aging timer for the cache of clients
¡ Setting the idle period before client reauthentication
¡ Enabling smart client access
4. (Optional.) Configuring client maintenance
¡ Setting the client idle timeout
¡ Configuring client keepalive
¡ Performing a wireless link quality test
¡ Configuring client statistics reporting
¡ Enabling client O&M statistics reporting
¡ Configuring client association ratio optimization
¡ Enabling beacon frames and probe responses to carry BSS Load IEs
5. (Optional.) Configuring client access control
¡ Specifying a permitted AP group for client association
¡ Specifying a permitted SSID for client association
¡ Adding a client to the whitelist
¡ Adding a client to the static blacklist
¡ Configuring the dynamic blacklist
¡ Configuring ACL-based access control
6. (Optional.) Disabling an AP from responding to broadcast probe requests
7. (Optional.) Enabling SNMP notifications for WLAN access
Configuring wireless services
Configuring a service template
About this task
A service template defines a set of wireless service attributes, such as SSID and authentication method.
Procedure
1. Enter system view.
system-view
2. Create a service template.
wlan service-template service-template-name
By default, no service template exists.
3. (Optional.) Assign clients coming online through the service template to the specified VLAN.
vlan vlan-id
By default, clients are assigned VLAN 1 after coming online through a service template.
Configuring a description for a service template
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Configure a description for the service template.
description text
By default, no description is configured for a service template.
Setting an SSID
About this task
APs advertise SSIDs in beacon frames. If the number of clients in a BSS exceeds the limit or the BSS is unavailable, you can enable SSID-hidden to prevent clients from discovering the BSS. When SSID-hidden is enabled, the BSS hides its SSID in beacon frames and does not respond to broadcast probe requests. A client must send probe requests with the specified SSID to access the WLAN. This feature can protect the WLAN from being attacked.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Set an SSID for the service template.
ssid ssid-name
By default, no SSID is set for a service template.
4. (Optional.) Enable SSID-hidden in beacon frames.
beacon ssid-hide
By default, beacon frames carry SSIDs.
Setting the maximum number of associated clients on a radio for a service template
About this task
Perform this task to limit the associated client quantity on a radio to avoid overload. With this feature configured, new clients cannot access the WLAN and the SSID is hidden when the maximum number is reached on a radio.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Set the maximum number of associated clients on a radio for the service template.
client max-count max-number
By default, the number of associated clients on a radio for a service template is not limited.
Enabling a service template
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Enable the service template.
service-template enable
By default, a service template is disabled.
Binding a service template to a radio
About this task
If you bind a service template to a radio, the AP creates a BSS that can provide wireless services defined in the service template.
You can perform the following tasks when binding a service template to a radio:
· Bind a VLAN group to the radio so that clients associated with the BSS will be assigned evenly to all VLANs in the VLAN group.
· Bind the NAS port ID or the NAS ID to the radio to identify the network access server.
· Enable the AP to hide SSIDs in beacon frames.
Restrictions and guidelines
You can bind a maximum of 16 service templates to a radio.
Procedure
1. Enter system view.
system-view
2. Enter AP view or an AP group's AP model view.
¡ Enter AP view.
wlan ap ap-name
¡ Execute the following commands in sequence to enter an AP group's AP model view:
wlan ap-group group-name
ap-model ap-model
3. Enter radio view.
radio radio-id
4. Bind a service template to the radio.
service-template service-template-name [ vlan vlan-id1 | vlan-group vlan-group-name ] [ ssid-hide ] [ nas-port-id nas-port-id ] [ nas-id nas-id ]
By default:
¡ In radio view, the configuration in an AP group's radio view is used.
¡ In an AP group's radio view, no service template is bound to a radio.
Configuring an AP to not inherit the specified service template from the AP group
About this task
By default, APs in an AP group inherit the service template bound to the AP group and create BSSs. You can perform this task to configure an AP to not inherit the specified service template from the AP group to which it belongs.
Procedure
1. Enter system view.
system-view
2. Enter AP view.
wlan ap ap-name
3. Enter radio view.
radio radio-id
4. Configure the AP to not inherit the specified service template from the AP group.
inherit exclude service-template service-template-name
By default, an AP inherits the service template bound to the AP group to which it belongs.
Configuring client data forwarding
Specifying the client traffic forwarder
About this task
The AC (centralized forwarding) or APs (local forwarding) can forward client traffic. Using APs to forward client traffic releases the forwarding burden on the AC.
If APs forward client traffic, you can specify a VLAN or a VLAN range for the APs to forward traffic from the specified VLANs. The AC forwards data traffic from the other VLANs.
Restrictions and guidelines
For the configuration of using the AC to forward client traffic to take effect, make sure client traffic forwarding has been enabled.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Specify the client traffic forwarder.
client forwarding-location { ac | ap [ vlan { start-vlan [ to end-vlan ] } ] }
By default, the client traffic forwarder is the AC.
Enabling client traffic forwarding
Restrictions and guidelines
You must enable this feature if you configure the AC as the client traffic forwarder.
In an AC hierarchy network, if you enable this feature only on the central AC or local ACs, APs associated with such an AC cannot forward client traffic even if the associated AC fails. For APs to take over the traffic forwarding service, you must disable and then enable the service templates for the APs.
Procedure
1. Enter system view.
system-view
2. Enable client traffic forwarding.
wlan client forwarding enable
By default, client traffic forwarding is enabled.
Setting the encapsulation format for client data frames
About this task
In a centralized forwarding infrastructure, an AP sends data frames from clients to the AC over the CAPWAP tunnel. You can set the encapsulation format for the client data frames to 802.3 or 802.11. As a best practice, set the format to 802.3 so the AC does not need to perform frame format conversion.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Set the encapsulation format for client data frames.
client frame-format { dot3 | dot11 }
By default, client data frames are encapsulated in the 802.3 format.
Specifying the method for APs to process traffic from unknown clients
About this task
Perform this task to configure APs using the specified service template to drop data packets from unknown clients and deauthenticate these clients or to drop the packets only.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Specify the method for APs to process traffic from unknown clients.
unknown-client [ deauthenticate | drop ]
By default, APs drop packets from unknown clients and deauthenticate these clients.
Configuring client management
Enabling client association at the AC or APs
About this task
If you enable client association at the AC, management frames are sent to the AC over the CAPWAP tunnel. This ensures security and facilitates management. As a best practice, enable client association at the APs when the network between AC and APs is complicated.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Enable client association at the AC or APs.
client association-location { ac | ap }
By default, client association is performed at the AC.
Enabling quick association
About this task
Enabling load balancing or band navigation might affect client association efficiency. For delay-sensitive services or in an environment where load balancing and band navigation are not needed, you can enable quick association for a service template.
Quick association disables load balancing or band navigation on clients associated with the service template. The device will not balance traffic or perform band navigation even if these two features are enabled in the WLAN.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Enable quick association.
quick-association enable
By default, quick association is disabled.
Specifying the Web server to which client information is reported
About this task
Perform this task to enable the device to report client information, such as client MAC address, associated AP, and association time, to the specified Web server through HTTP. The Web server accepts client information only when the server's host name, port number, and path are specified.
Procedure
1. Enter system view.
system-view
2. Specify the host name and port number of the Web server.
wlan web-server host host-name port port-number
By default, the host name and port number of the Web server are not specified.
3. Specify the path of the Web server.
wlan web-server api-path path
By default, the path of the Web server is not specified.
4. (Optional.) Set the maximum number of client entries that can be reported at a time.
wlan web-server max-client-entry number
By default, a maximum of ten client entries can be reported at a time.
Enabling generation of client logs in the specified format
About this task
The device supports client logs in the following formats:
· H3C—Logs AP name, radio ID, client MAC address, SSID, BSSID, and client online status. By default, the device generates client logs only in H3C format.
· Normal—Logs AP MAC address, AP name, client IP address, client MAC address, SSID, and BSSID.
· Sangfor—Logs AP MAC address, client IP address, and client MAC address.
This feature enables the device to generate client logs in normal or sangfor format and send the logs to the information center. Log destinations are determined by the information center settings. For more information about the information center, see Network Management and Monitoring Configuration Guide.
This feature does not affect generation of client logs in the H3C format.
Procedure
1. Enter system view.
system-view
2. Enable the device to generate client logs in the specified format.
customlog format wlan { normal | sangfor }
By default, the device generates client logs only in the H3C format.
Setting the VLAN allocation method for clients
About this task
When a client comes online for the first time, the associated AP assigns a random VLAN to it. When the client comes online again, the VLAN assigned to the client depends on the allocation method.
· Static allocation—The client inherits the VLAN that has been assigned to it. If the IP address lease has not expired, the client will use the same IP address. This method helps save IP addresses.
· Dynamic allocation—The AP re-assigns a VLAN to the client. This method balances clients in all VLANs.
· Compatible static allocation—The client inherits the VLAN that has been assigned to it when roaming between Comware 5 and Comware 7 ACs.
Restrictions and guidelines
After a client goes offline and comes online again, its VLAN might change in the following situations:
· In static or compatible static allocation mode, the AP will assign a new VLAN to the client if its original VLAN has been removed from the VLAN group.
· If you change the VLAN allocation method from dynamic to static or compatible static, the AP might assign the clients a different VLAN after they come online again.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Set the VLAN allocation method for clients.
client vlan-alloc { dynamic | static | static-compatible }
By default, the VLAN allocation method for clients is dynamic.
Configuring clients to prefer the authorization VLAN after roaming
About this task
Typically, the VLAN of a client remains unchanged after client roaming. However, if the client triggers a security alert configured on IMC after roams to another AP, the issued authorization VLAN for user isolation takes effect.
Restrictions and guidelines
As a best practice, configure this feature on all ACs in a mobility group.
This feature takes effect only on 802.1X and MAC authentication clients.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Configure clients to prefer the authorization VLAN after roaming.
client preferred-vlan authorized
By default, clients prefer the authorization VLAN after roaming.
Enabling immediate client association upon successful local authentication
About this task
By default, an AP reports information about locally authenticated clients that pass authentication to the AC, and the AC creates client entries and informs the AP to get the clients online. If the CAPWAP tunnel between the AC and the AP operates incorrectly, clients might fail to come online and are reauthenticated repeatedly.
To avoid this problem, you can allow clients to come online immediately after successful local authentication so that the AP can forward client traffic when the AC cannot be reached. The AP synchronizes client information to the AC when the tunnel recovers.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Enable clients to come online immediately upon successful local authentication.
undo client report-mandatory
By default, locally authenticated clients come online after successful client information reporting.
Setting the aging timer for the cache of clients
About this task
The cache of a client saves the PMK list, access VLAN, and other authorized information for the client. If an offline client comes online again before the aging timer expires, it can inherit all information in its cache for fast roaming. If the client does not come online before the aging timer expires, the device clears the client cache.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Set the aging timer for the cache of clients.
client cache aging-time aging-time
By default, the aging timer for the cache of clients is 180 seconds.
Setting the idle period before client reauthentication
About this task
When URL redirection for WLAN MAC authentication is enabled, an AP redirects clients whose information is not recorded on the RADIUS server to the specified URL for Web authentication. Clients passing Web authentication are logged off and must perform MAC reauthentication to come online. However, MAC reauthentication fails if the IP addresses assigned to the clients have not expired.
Perform this task to add these clients to the dynamic blacklist for the specified idle period after they pass Web authentication to reduce reauthentication failures.
Procedure
1. Enter system view.
system-view
2. Set the idle period before client reauthentication.
wlan client reauthentication-period [ period-value ]
By default, the idle period is 10 seconds.
Enabling smart client access
About this task
This feature enables H3C wireless clients to access the WLAN automatically when the AKM mode is set to PSK or when the radio is bound to an empty service template.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template-name
3. Enable smart client access.
client smart-access enable
By default, smart client access is disabled.
Configuring client maintenance
Setting the client idle timeout
About this task
If an online client does not send any frames to the associated AP before the client idle timeout timer expires, the AP logs off the client.
Procedure
1. Enter system view.
system-view
2. Enter AP view or AP group view.
¡ Enter AP view.
wlan ap ap-name
¡ Enter AP group view.
wlan ap-group group-name
3. Set the client idle timeout.
client idle-timeout timeout
By default:
¡ In AP view, an AP uses the configuration in AP group view.
¡ In AP group view, the client idle timeout is 3600 seconds.
Configuring client keepalive
About this task
This feature enables an AP to send keepalive packets to clients at the specified interval to determine whether the clients are online. If the AP does not receive any replies from a client within three keepalive intervals, it logs off the client.
Procedure
1. Enter system view.
system-view
2. Enter AP view or AP group view.
¡ Enter AP view.
wlan ap ap-name
¡ Enter AP group view.
wlan ap-group group-name
3. Enable client keepalive.
client keep-alive enable
By default:
¡ In AP view, an AP uses the configuration in AP group view.
¡ In AP group view, client keepalive is disabled.
4. (Optional.) Set the client keepalive interval.
client keep-alive interval interval
By default:
¡ In AP view, an AP uses the configuration in AP group view.
¡ In AP group view, the client keepalive interval is 300 seconds.
Performing a wireless link quality test
About this task
This feature enables an AP to test the quality of the link to a wireless client. The AP sends empty data frames to the client at each supported rate. Then it calculates link quality information such as RSSI, packet retransmissions, and RTT based on the responses from the client.
The timeout for a wireless link quality test is 10 seconds. If the wireless link test is not completed before the timeout expires, test results cannot be obtained.
Procedure
To perform a wireless link quality test, execute the wlan link-test mac-address command in user view.
Configuring client statistics reporting
About this task
This feature enables an AP to report client statistics to the AC at the specified intervals for client entry update. The AC informs the AP to log off a client if the client's information does not exist in the saved entries.
To avoid frequent client re-association, disable this feature when the network is in a bad condition.
Procedure
1. Enter system view.
system-view
2. Enter AP view or AP group view.
¡ Enter AP view.
wlan ap ap-name
¡ Enter AP group view.
wlan ap-group group-name
3. Configure client statistics reporting.
client-statistics-report { disable | enable [ interval interval ] }
By default:
¡ In AP view, an AP uses the configuration in AP group view.
¡ In AP group view, client statistics reporting is enabled.
Enabling client O&M statistics reporting
About this task
This feature enables an AP to report client O&M statistics to the AC at the interval specified by the client-statistics-report command. Then, the AC will report the statistics to the Oasis platform.
As a best practice, disable this feature when the network is in a bad condition.
Procedure
1. Enter system view.
system-view
2. Enter AP view or AP group view.
¡ Enter AP view.
wlan ap ap-name
¡ Enter AP group view.
wlan ap-group group-name
3. Enable client O&M statistics reporting.
client-statistics-report smart-maintenance enable
By default:
¡ In AP view, an AP uses the configuration in AP group view.
¡ In AP group view, client O&M statistics reporting is enabled.
Setting the NAS ID
About this task
A network access server identifier (NAS ID), network access server port identifier (NAS port ID), or network access server VLAN identifier (NAS VLAN ID) identifies the network access server of a client and differentiates the source of client traffic.
Restrictions and guidelines
If you specify a NAS ID or NAS port ID when binding a service template to a radio, the radio uses the NAS ID or NAS port ID specified for the service template.
If a NAS port ID has been specified by using the nas-port-id command, clients use the specified NAS port ID. If no NAS port ID is specified, clients generate NAS port IDs in the specified NAS port ID format.
Procedure
1. Enter system view.
system-view
2. Set the format of NAS port IDs for clients.
wlan nas-port-id format { 2 | 4 }
By default, clients use format 2 to generate NAS port IDs.
3. Enter AP view, AP group view, or global configuration view.
¡ Enter AP view.
wlan ap ap-name
¡ Enter AP group view.
wlan ap-group group-name
¡ Enter global configuration view.
wlan global-configuration
4. Set the NAS ID.
nas-id nas-id
By default:
¡ In AP view, an AP uses the configuration in AP group view. If no NAS ID is set in AP group view, the AP uses the configuration in global configuration view.
¡ In AP group view, an AP uses the configuration in global configuration view.
¡ In global configuration view, no NAS ID is set.
5. Set the NAS port ID.
nas-port-id nas-port-id
By default:
¡ In AP view, an AP uses the configuration in AP group view. If no NAS port ID is set in AP group view, the AP uses the configuration in global configuration view.
¡ In AP group view, an AP uses the configuration in global configuration view.
¡ In global configuration view, no NAS port ID is set.
6. Set the NAS VLAN ID and enable the AC to encapsulate the VLAN ID in RADIUS requests.
nas-vlan vlan-id
By default, no NAS VLAN ID is set. Authentication requests sent to the RADIUS server do not contain the NAS VLAN ID field.
This feature is supported only in AP view.
Set the NAS VLAN ID when a third-party Security Accounting Management (SAM) server is used as the RADIUS server.
Setting the NAS port type
About this task
RADIUS requests carry the NAS port type attribute to indicate type of the access port for 802.1X and MAC authentication clients.
Restrictions and guidelines
Make sure the service template has been disabled before you perform this task.
Procedure
1. Enter system view.
system-view
2. Enter service template view.
wlan service-template service-template
3. Set the NAS port type.
nas-port-type value
By default, the NAS port type is WLAN-IEEE 802.11 with a code value of 19.
Configuring client association ratio optimization
About this task
This feature enables the device to recalculate the client association success ratio, association congestion ratio, and abnormal disassociation ratio by using the specified index to get smaller ratio values.
The client association success ratio is the number of successful client associations divided by the total number of client association attempts. The client association congestion ratio is the number of failed client associations caused by AP overloading divided by the total number of client association attempts. The client abnormal disassociation ratio is the number of abnormal disassociations divided by the sum of successful associations and online clients.
Procedure
1. Enter system view.
system-view
2. Enter global configuration view.
wlan association optimization value
By default, the index is 0. The device does not optimize client association ratios.
Enabling beacon frames and probe responses to carry BSS Load IEs
About this task
This feature enables beacon frames and probe responses to carry BSS Load IEs. A BSS Load IE contains information such as associated client quantity, channel usage, and remaining available media time.
Restrictions and guidelines
As a best practice, enable this feature in Hotspot 2.0 networks or networks where client roaming is required. This helps clients identify the optimal WLAN.
Procedure
1. Enter system view.
system-view
2. Enable beacon frames and probe responses to carry BSS Load IEs.
wlan client bss-load-ie enable [ update-interval interval ]
By default, beacon frames and probe responses do not carry BSS Load IEs.
Configuring client access control
Specifying a permitted AP group for client association
About this task
Perform this task to enable clients to associate with APs in the specified AP group.
Procedure
1. Enter system view.
system-view
2. Enter user profile view.
user-profile profile-name
3. Specify a permitted AP group for client association.
wlan permit-ap-group ap-group-name
By default, no permitted AP group is specified for client association.
Specifying a permitted SSID for client association
About this task
Perform this task to allow clients to associate with a WLAN through the specified SSID.
Procedure
1. Enter system view.
system-view
2. Enter user profile view.
user-profile profile-name
3. Specify a permitted SSID for client association.
wlan permit-ssid ssid-name
By default, no permitted SSID is specified for client association.
Adding a client to the whitelist
Restrictions and guidelines
When you add the first client to the whitelist, the system asks you whether to disconnect all online clients. Enter Y at the prompt to configure the whitelist.
Procedure
1. Enter system view.
system-view
2. Add a client to the whitelist.
wlan whitelist mac-address mac-address
Adding a client to the static blacklist
Restrictions and guidelines
You cannot add a client to both the whitelist and the static blacklist.
If the whitelist and blacklists are configured, only the whitelist takes effect.
Procedure
1. Enter system view.
system-view
2. Add a client to the static blacklist.
wlan static-blacklist mac-address mac-address
Configuring the dynamic blacklist
About this task
You can configure the dynamic blacklist to take effect on the AC or on APs.
If you configure the dynamic blacklist to take effect on the AC, all APs connected to the AC will reject the clients in the dynamic blacklist. If you configure the dynamic blacklist to take effect on APs, the AP associated with the clients in the dynamic blacklist will reject the clients, but the clients can still associate with other APs connected to the AC.
Entries in the dynamic blacklist are removed when the aging timer expires.
Restrictions and guidelines
As a best practice, configure the dynamic blacklist to take effect on the AC in high-density environments.
The configured aging timer takes effect only on entries newly added to the dynamic blacklist.
If the whitelist and blacklists are configured, only the whitelist takes effect.
Procedure
1. Enter system view.
system-view
2. Choose one option as needed:
¡ Configure the dynamic blacklist to take effect on APs.
wlan dynamic-blacklist active-on-ap
¡ Configure the dynamic blacklist to take effect on the AC.
undo wlan dynamic-blacklist active-on-ap
By default, the dynamic blacklist takes effect on APs.
3. (Optional.) Set the aging timer for dynamic blacklist entries.
wlan dynamic-blacklist lifetime lifetime
By default, the aging timer is 300 seconds.
The aging timer for dynamic blacklist entries takes effect only on rogue client entries.
Configuring ACL-based access control
Restrictions and guidelines
The ACL-based access control configuration takes precedence over the whitelist and blacklist configuration. As a best practice, do not configure both ACL-based access control and whitelist- and blacklist-based access control on the same device.
If the specified ACL contains a deny statement, configure a permit statement for the ACL to permit all clients. If you do not do so, no clients can come online.
The configuration in AP view takes precedence over the configuration in service template view.
This feature supports only Layer 2 ACLs and can only use source MAC address as the match criterion. If you specify an ACL of another type, the configuration does not take effect.
Procedure
1. Enter system view.
system-view
2. Enter service template view or AP view.
¡ Enter service template view.
wlan service-template service-template-name
¡ Enter AP view.
wlan ap ap-name
3. Specify an ACL.
access-control acl acl-number
By default, no ACL is specified.
Disabling an AP from responding to broadcast probe requests
About this task
Broadcast probe requests do not carry any SSIDs. Upon receiving a broadcast probe request, an AP responds with a probe response that carries service information for the AP.
This feature enables clients that send unicast probe requests to the AP to associate with the AP more easily.
Procedure
1. Enter system view.
system-view
2. Enter AP view or AP group view.
¡ Enter AP view.
wlan ap ap-name
¡ Enter AP group view.
wlan ap-group group-name
3. Disable the AP from responding to broadcast probe requests.
broadcast-probe reply disable
By default:
¡ In AP view, an AP uses the configuration in AP group view.
¡ In AP group view, an AP responds to broadcast probe requests.
Enabling SNMP notifications for WLAN access
About this task
To report critical WLAN access events to an NMS, enable SNMP notifications for WLAN access. For WLAN access event notifications to be sent correctly, you must also configure SNMP as described in Network Management and Monitoring Configuration Guide.
Procedure
1. Enter system view.
system-view
2. Choose the options to configure as needed:
¡ Enable SNMP notifications for client access.
snmp-agent trap enable wlan client
¡ Enable SNMP notifications for client audit.
snmp-agent trap enable wlan client-audit
By default, SNMP notifications are disabled.
Display and maintenance commands for WLAN access
Execute display commands in any view and the reset command in user view.
|
Task |
Command |
|
Display the number of online clients at both 2.4 GHz and 5 GHz bands. |
display wlan ap all client-number |
|
Display the number of online clients and channel information for each radio. |
display wlan ap all radio client-number |
|
Display the number of online clients in each AP group. |
display wlan ap-group all client-number |
|
Display blacklist entries. |
display wlan blacklist { dynamic | static } |
|
Display basic service set (BSS) information. |
display wlan bss { all | ap ap-name | bssid bssid } [ verbose ] |
|
Display client information. |
display wlan client [ ap ap-name [ radio radio-id ] | mac-address mac-address | service-template service-template-name | frequency-band { 2.4 | 5 } ] [ verbose ] |
|
Display information about client IPv6 addresses. |
display wlan client ipv6 |
|
Display client online duration. |
display wlan client online-duration [ ap ap-name ] [ verbose ] |
|
Display client status information. |
display wlan client status [ mac-address mac-address ] [ verbose ] |
|
Display service template information. |
display wlan service-template [ service-template-name ] [ verbose ] |
|
Display client statistics. |
display wlan statistics client [ mac-address mac-address ] |
|
Display client connection history. |
display wlan statistics connect-history { ap { all | name ap-name } | service-template service-template-name } |
|
Display service template statistics |
display wlan statistics service-template service-template-name |
|
Display whitelist entries. |
display wlan whitelist |
|
Log off the specified client or all clients. |
reset wlan client { all | mac-address mac-address } |
|
Remove the specified client or all clients from the dynamic blacklist. |
reset wlan dynamic-blacklist [ mac-address mac-address ] |
|
Clear client statistics. |
reset wlan statistics client { all | mac-address mac-address } |
|
Clear service template statistics. |
reset wlan statistics service-template service-template-name |
WLAN access configuration examples
Example: Configuring WLAN access
Network configuration
As shown in Figure 8, the switch acts as the DHCP server to assign IP addresses to the AP and the client. The AP provides wireless services with the SSID trade-off.
Procedure
1. Create VLAN 100, and assign an IP address to VLAN-interface 100.
<AC> system-view
[AC] vlan 100
[AC-vlan100]quit
[AC] interface vlan-interface 100
[AC-Vlan-interface100] ip address 10.1.9.58 16
2. Create the manual AP ap1, and specify the AP model and serial ID.
[AC] wlan ap ap1 model WA536-WW
[AC-wlan-ap-ap1] serial-id 219801A1NQ8183E00007
3. Configure a service template and bind it to the AP radio:
# Create the service template service1, set the SSID to trade-off, assign clients coming online through the service template to VLAN 100, and enable the service template.
<AC> system-view
[AC] wlan service-template service1
[AC-wlan-st-service1] ssid trade-off
[AC-wlan-st-service1] vlan 100
[AC-wlan-st-service1] service-template enable
[AC-wlan-st-service1] quit
# Set the working channel to channel 157 for radio 1 of the AP.
[AC] wlan ap ap1
[AC-wlan-ap-ap1] radio 1
[AC-wlan-ap-ap1-radio-1] channel 157
# Bind the service template service1 to radio 1.
[AC-wlan-ap-ap1-radio-1] radio enable
[AC-wlan-ap-ap1-radio-1] service-template service1
Verifying the configuration
# Verify that the SSID is trade-off, and the service template is enabled.
[AC] display wlan service-template verbose
Service template name : service1
Description : Not configured
SSID : trade-off
SSID-hide : Disabled
User-isolation : Disabled
Service template status : Enabled
Maximum clients per BSS : 64
Frame format : Dot3
Seamless roam status : Disabled
Seamless roam RSSI threshold : 50
Seamless roam RSSI gap : 20
VLAN ID : 100
AKM mode : Not configured
Security IE : Not configured
Cipher suite : Not configured
TKIP countermeasure time : 0 sec
PTK life time : 43200 sec
PTK rekey : Enabled
GTK rekey : Enabled
GTK rekey method : Time-based
GTK rekey time : 86400 sec
GTK rekey client-offline : Disabled
WPA3 status : Disabled
Enhance-open status : Enabled
Enhanced-open transition-mode service-template : N/A
User authentication mode : Bypass
Intrusion protection : Disabled
Intrusion protection mode : Temporary-block
Temporary block time : 180 sec
Temporary service stop time : 20 sec
Fail VLAN ID : 1
Critical VLAN ID : Not configured
802.1X handshake : Enabled
802.1X handshake secure : Disabled
802.1X domain : my-domain
MAC-auth domain : Not configured
Max 802.1X users per BSS : 4096
Max MAC-auth users per BSS : 4096
802.1X re-authenticate : Enabled
Authorization fail mode : Online
Accounting fail mode : Online
Authorization : Permitted
Key derivation : N/A
PMF status : Disabled
Hotspot policy number : Not configured
Forwarding policy status : Disabled
Forwarding policy name : Not configured
Forwarder : AC
FT status : Disabled
QoS trust : Port
QoS priority : 0
BTM status : Disabled
# Associate the client with the AP. (Details not shown.)
# Verify that the client can access the WLAN.
[AC] display wlan client service-template service1
Total number of clients: 1
MAC address Username AP name RID IP address VLAN
0023-8933-223b N/A ap1 1 3.0.0.3 100
Example: Configuring whitelist-based access control
Network configuration
As shown in Figure 9, configure the whitelist to permit only the client whose MAC address is 0000-000f-1211 to access the WLAN.
Procedure
# Add the MAC address 0000-000f-1211 to the whitelist.
<AC> system-view
[AC] wlan whitelist mac-address 0000-000f-1211
Verifying the configuration
# Verify that the MAC address 0000-000f-1211 is in the whitelist.
[AC] display wlan whitelist
Total number of clients: 1
MAC addresses:
0000-000f-1211
Example: Configuring static blacklist-based access control
Network configuration
As shown in Figure 10, configure the static blacklist to forbid the client whose MAC address is 0000-000f-1211 to access the WLAN.
Procedure
# Add the MAC address 0000-000f-1211 to the static blacklist.
<AC> system-view
[AC] wlan static-blacklist mac-address 0000-000f-1211
Verifying the configuration
# Verify that the MAC address 0000-000f-1211 is in the static blacklist.
[AC] display wlan blacklist static
Total number of clients: 1
MAC addresses:
0000-000f-1211
Example: Configuring ACL-based access control
Network configuration
As shown in Figure 11, configure ACL-based access control to allow Client 1 and clients with the same OUI as Client 2 to access the WLAN.
Procedure
# Create Layer 2 ACL 4000, and create ACL rules to permit Client 1 and clients with the same OUI as Client 2.
<Sysname> system-view
[Sysname] acl mac 4000
[Sysname-acl-mac-4000] rule 0 permit source-mac 0000-000f-1121 ffff-ffff-ffff
[Sysname-acl-mac-4000] rule 1 permit source-mac 000e-35b2-000e ffff-ff00-0000
[Sysname-acl-mac-4000] quit
# Bind ACL 4000 to service template service1.
[Sysname] wlan service service1
[Sysname-wlan-st-service1] access-control acl 4000
Verifying the configuration
# Execute the display wlan client command to verify that only Client 1 and clients with the same OUI as Client 2 (including Client 2) can access the WLAN.
[AC] display wlan client
Total number of clients: 2
MAC address Username AP name RID IPv4 address VLAN
0000-000f-1121 N/A ap 1 192.168.100.12 1
000e-35b2-000e N/A ap 1 192.168.100.13 1
