The file is an autonomous IOS image designed for specific Cisco Aironet 1600 and 3500 Series access points.
Need more help? Consult Cisco’s official “Cisco Aironet 3600 Series Access Point Software Configuration Guide” for IOS Release 15.2(2)JB.
Updates to support current WPA2 enterprise encryption standards. Ap3g1-k9w7-tar.152-2.jb.tar
This firmware is most often used to convert a "lightweight" access point (which requires a WLC) into an "autonomous" access point (which can operate independently). This conversion allows a single AP or a small cluster of APs to function as a standalone wireless network without the expense and complexity of a dedicated controller.
| Component | Value | Meaning | Explanation | | :--- | :--- | :--- | :--- | | | ap3g1 | Access Point Hardware Platform | ap3g1 is the AP platform identifier used by the 3500 series, 1260 series, and some 3600/2600 access points. | | Feature Set | k9w7 | Image Type | k9w7 stands for autonomous (or "site survey") IOS, meaning the access point can run and be configured independently without a Wireless LAN Controller (WLC). | | Delivery Format | tar | File Extension | The file is a tape archive ( .tar ), containing multiple files that can be loaded onto the AP. These can be obtained from a TFTP server and extracted using the archive exec command. | | Version | 152-2.jb | IOS Software Version | This indicates the Cisco IOS software version is 15.2(2)JB . The 15.2(2)JB release is part of the 15.2JB train. | The file is an autonomous IOS image designed
– Feature Set This is a critical component. k9w7 signifies that this is an autonomous (or "site survey") IOS image . This means an access point flashed with this firmware can operate in standalone mode , independent of a Wireless LAN Controller (WLC). This is the feature set you need for a controllerless deployment.
If you try to use ap3g1 on an ap3g2 (e.g., Aironet 2600/3600) device, the installation will fail. | Component | Value | Meaning | Explanation
Network engineers typically search for and deploy this specific image for three primary reasons: