November 28, 2022 5:46 pm
I recently installed the Oracle Instant Client 21c on a Linux host.
I then tried to access an Oracle 19c RAC database on another host:
connect soe/soe@racn1.rrcsc.pmax.local:1521/metrodb.rrcsc.pmax.local
ORA-12637: Packet receive failed
Numerous blog posts on this error, but in this case I needed to add the directive DISABLE_OOB=ON to my SQLNET.ORA.
Normally this would be in $ORACLE_HOME/network/admin, but on the Instant Client, it is located in:
[root@MYLINUX01 ~]# cat /lib/oracle/21/client64/lib/network/admin/sqlnet.ora
DISABLE_OOB=ON
Posted by gruffdba
Categories: Uncategorized
Tags: client, ora-12637, oracle 19, oracle 21, packet receive failed, sqlnet.ora, TNS
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