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EM 134: Enterprise Manager 13c Cloud Control Target Database Repeating Alert Log Errors: TNS-12599: TNS:cryptographic Checksum Mismatch (Doc ID 2812319.1)

Last updated on OCTOBER 06, 2021

Applies to:

Enterprise Manager Base Platform - Version 12.2.1.4.0 and later
Information in this document applies to any platform.

Symptoms

The target Database is version 19.0.0.0.0 or higher.

Frequent TNS-12599 errors are logged in a target database's alert.log, even if the monitoring Agent is not active:

alert.log

---------------------------------------------------

VERSION INFORMATION:
TNS for Linux: Version 19.0.0.0.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 19.0.0.0.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 19.0.0.0.0 - Production
Version 19.12.0.0.0
Time: 22-SEP-2021 12:07:57
Tracing not turned on.
Tns error struct:
ns main err code: 12599

TNS-12599: TNS:cryptographic checksum mismatch
ns secondary err code: 12656
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
2021-09-22 12:08:45.911000 -04:00
Thread 2 advanced to log sequence 38069 (LGWR switch), current SCN: 39165430670
Current log# 9 seq# 38069 mem# 0: +DATA/EC01QUB_PRIM/ONLINELOG/group_9.328.1056813397
ARC3 (PID:22689): Archived Log entry 140693 added for T-2.S-38068 ID 0xd805fb2c LAD:1
2021-09-22 12:08:49.485000 -04:00
LOGMINER: End mining logfile for session 2 thread 2 sequence 3

______________________________________________________________________


Setting the following in sqlnet.ora does not fix the problem:

SQLNET.CRYPTO_CHECKSUM_SERVER=rejected
SQLNET.ENCRYPTION_SERVER=rejected

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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