11g: TNS-12532 / ORA-12532 Reported When Firewall Is Enabled (Doc ID 748466.1)

Last updated on OCTOBER 27, 2016

Applies to:

Oracle Net Services - Version: 11.1.0.6.0
This problem can occur on any platform.

Symptoms

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 :

 

ntt2err: soc <XXXX> error - operation=1, ntresnt[0]=502, ntresnt[1]=113, ntresnt[2]=0
ntt2err: exit
nttcni: exit
nttcon: exit
nserror: entry
nserror: nsres: id=0, op=65, ns=12532, ns2=12560; nt[0]=502, nt[1]=113, nt[2]=0; ora[0]=0, ora[1]=0, ora[2]=0
nsopen: unable to open transport

Here the OS error is 113 -No route to host in Linux platform.

Cause

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