Chapter 3 Configuring Multiple SSIDs

Enabling MBSSID and SSIDL at the same time

When multiple BSSIDs are enabled on the access point, the SSIDL IE does not contain a list of SSIDs; it contains only extended capabilities.

Any Wi-Fi certified client device can associate to an access point using multiple BSSIDs.

You can enable multiple BSSIDs on access points that participate in WDS.

CLI Configuration Example

This example shows the CLI commands that you use to enable multiple BSSIDs on a radio interface, create an SSID called visitor, designate the SSID as a BSSID, specify that the BSSID is included in beacons, set a DTIM period for the BSSID, and assign the SSID visitor to the radio interface:

router(config)# interface dot11 0 router(config-if)# mbssid router(config-if)# exit router(config)# dot11 ssid visitor router(config-ssid)# mbssid guest-mode router(config-ssid)# exit router(config)# interface dot11 0 router(config-if)# ssid visitor

You can also use the dot11 mbssid global configuration command to simultaneously enable multiple BSSIDs on all radio interfaces that support multiple BSSIDs.

Displaying Configured BSSIDs

Use the show dot11 bssid privileged EXEC command to display the relationship between SSIDs and BSSIDs or MAC addresses. This example shows the command output:

router1230#show dot11 bssid

 

 

Interface

BSSID

Guest

SSID

Dot11Radio1

0011.2161.b7c0

Yes

atlantic

Dot11Radio0

0005.9a3e.7c0f

Yes

WPA2-TLS-g

Enabling MBSSID and SSIDL at the same time

When multiple BSSIDs are enabled on the access point, the SSIDL IE does not contain a list of SSIDs; it contains only extended capabilities.

Beginning in privileged EXEC mode, follow these steps to include an SSID in an SSIDL IE:

 

 

Command

Purpose

 

Step 1

 

 

 

configure terminal

Enter global configuration mode.

 

Step 2

 

 

 

interface dot11radio { 0 1 }

Enter interface configuration mode for the radio interface.

 

Step 3

 

 

 

ssid ssid-string

Enter configuration mode for a specific SSID.

 

Step 4

 

 

 

information-element ssidl

Include an SSIDL IE in the access point beacon that advertises

 

 

[advertisement] [wps]

the access point’s extended capabilities, such as 802.1x and

 

 

 

support for Microsoft Wireless Provisioning Services (WPS).

 

 

 

Use the advertisement option to include the SSID name and

 

 

 

capabilities in the SSIDL IE. Use the wps option to set the WPS

 

 

 

capability flag in the SSIDL IE.

 

 

 

 

 

 

 

 

 

Cisco Wireless ISR and HWIC Access Point Configuration Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OL-6415-04

 

 

 

3-7

 

 

 

 

 

 

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Cisco Systems OL-6415-04 Enabling Mbssid and Ssidl at the same time, CLI Configuration Example, Information-element ssidl