TNS-12532 / ORA-12532 ' TNS: Invalid Argument' Error Reported When Firewall Is Enabled
(Doc ID 748466.1)
Last updated on AUGUST 15, 2018
Applies to:Oracle Net Services - Version 188.8.131.52 to 184.108.40.206 [Release 11.1 to 11.2]
Information in this document applies to any platform.
This problem can occur on any platform.
Firewall is enabled between the clients and server.
On trying to connect from the client host, the following error is reported :
ORA-12532: TNS : invalid argument
Client trace indicates the following :
nserror: nsres: id=0, op=65, ns=12532, ns2=12560; nt=502, nt=113, nt=0; ora=0, ora=0, ora=0
nsopen: unable to open transport
Here the OS error is 113 -No route to host in Linux platform.
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