The value of aluMcPeerFwEncryptionSpiAuthKey2 specifies the key used for the authentication algorithm defined by the aluMcPeerFwEncryptionAuthAlg. The length of the key must match the length required by the authentication algorithm. If a key of another length is set, the request will fail with an 'inconsistentValue' error. There is no default value for aluMcPeerFwEncryptionSpiAuthKey2 and this is a required object when setting aluMcPeerFwEncryptionSpi2 to none zero value. If aluMcPeerFwEncryptionSpiAuthKey2 is not specified when aluMcPeerFwEncryptionSpi2 is set to none zero value, the request will fail with an 'inconsistentValue' error. Any GET request on this object returns an empty string.