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The "[ERROR] spam_lrad.c 1553: spamProcessJoinRequest :spamDecodeJoinReq failed" error message appears during the upgrade of AP from Autonomous to LWAPP mode and is connected to the Wireless LAN Controller that runs version 3.2
With self-signed certificate access points (SSC APs), the SSC AP policy is disabled. The reason is that the AP Auth List has to have the hash keys as the WLC needs the key-hash with the MAC address of the access point and accept ssc enabled for them to join the WLC.
In such cases, you see this error message on the controller:
Wed Aug 9 17:20:21 2006 [ERROR] spam_lrad.c 1553: spamProcessJoinRequest :spamDecodeJoinReq failed Wed Aug 9 17:20:21 2006 [ERROR] spam_crypto.c 1509: Unable to free public key for AP 00:12:44:B3:E5:60 Wed Aug 9 17:20:21 2006 [ERROR] spam_lrad.c 4880: LWAPP Join-Request does not include valid certificate in CERTIFICATE_PAYLOAD from AP 00:12:44:b3:e5:60. Wed Aug 9 17:20:21 2006 [CRITICAL] sshpmPkiApi.c 1493: Not configured to accept Self-signed AP cert
You need to complete these steps and perform one of these two actions:
Issue the show auth-list command at the controller CLI in order to check for whether the controller is configured to accept APs with SSCs.
This is a sample output of show auth-list command:
Authorize APs against AAA ....................... disabled
Allow APs with Self-signed Certificate (SSC) .... enabled