IO Error: Unexpected NA Packet Type received When Trying to Connect to a Database Server Using JDBC and SSL

(Doc ID 2285439.1)

Last updated on JULY 11, 2017

Applies to:

JDBC - Version 11.2.0.4.0 and later
Information in this document applies to any platform.

Symptoms

Application using JDBC  is unable to connect to database server through SSL listener, resulting in the following error:


oracle.net.ns.NetException: Unexpected NA Packet Type received
at oracle.net.ano.AnoComm.a(Unknown Source)
at oracle.net.ano.AnoComm.e(Unknown Source)
at oracle.net.ano.AnoComm.i(Unknown Source)
at oracle.net.ano.SupervisorService.a(Unknown Source)
at oracle.net.ano.Service.c(Unknown Source)
at oracle.net.ano.Ano.negotiation(Unknown Source)
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:443)


Connections from this same application to other database servers where TLS/SSL setup has been done do not present the issue. It occurs only against a particular database.



Changes

 

Cause

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