Cisco Cisco Catalyst 6500 Series Wireless LAN Services Module (WLSM)

 shows the mapping between WLSM software versions and Cisco IOS Software versions.

This section describes general limitations and restrictions:

In software release 1.1.1 through 1.4.1, you can install one WLSM in a chassis.

In software release 2.1.1, you can install two WLSMs, which requires Cisco IOS Release 
12.2(18)SXF2.

You cannot configure wireless clients in the same subnet as wired clients.

You cannot map multiple SSIDs to a single network ID.

You cannot configure QoS on tunnel interfaces in systems with a PFC3A. There is full QoS support 
in systems with a PFC3B or PFC3BXL.

If you upgrade your Supervisor 720 to Cisco IOS Release 12.2(18)SFX2, you must be running Cisco 
Wireless LAN Services Module software version 1.4.3 or greater on your WLSM.

2.7.0

12.3(8)JEC1

2.6.0

12.3(8)JEC1

2.5.0

12.3(8)JEC1

2.4.1

12.3(8)JEB1 

2.4.0

12.3(8)JEB 

2.3.1

12.3(8)JEA1

2.2.1

12.3(8)JEA 

2.1.1

12.3(8)JA

1.4.3 (deferred)

12.3(7)JA2

1.4.2 (deferred)

12.3(7)JA1

1.4.1 (deferred)

12.3(7)JA

1.3.2 (deferred)

12.3(4)JA1

1.3.1 (deferred)

12.3(4)J

1.2.3 (deferred)

12.3(2)JA5

1.2.2 (deferred)

12.3(2)JA2

1.2.1 (deferred)

12.3(2)JA

1.1.2 (deferred)

12.2(15)XR2

1.1.1 (deferred)

12.2(15)XR1