Remote Clients Receive ORA-12160 or ORA-12561 Errors Connecting To 11GR2 RAC Via SCAN Listeners
(Doc ID 1291985.1)
Last updated on APRIL 05, 2019
Applies to:Oracle Net Services - Version 188.8.131.52 to 184.108.40.206 [Release 11.2]
Oracle Database - Enterprise Edition - Version 220.127.116.11 to 18.104.22.168.0 [Release 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 30-APR-2013***
You see either of the following errors reported while trying to connect to RAC database using SCAN name from remote client machines. But able to connect via the very same SCAN Listeners directly from the RAC servers or on the local LAN as the RAC Servers as well as from the remote clients if referencing the local or physical TNS Listeners running on the VIP addresses.
ORA-12160: TNS:internal error: Bad error number
ORA-12561: TNS:unknown error
No known changes, but problem only affects or is reported by "remote" clients when trying to use the SCAN Addresses.
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