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ORA-06807:

TLI Driver: could not open ethernet device driver file
Cause: The file /dev/eth does not exist, or the driver it references could not be opened.
Action: The system's real ethernet device file, for example /dev/wd, for the Western Digital ethernet driver, should be linked to the file /dev/eth. If this has been done, insure that the ethernet driver has been installed by completing the TCP/IP installation on your system, and testing a connection. If problem continues, contact your customer support representative for a list of supported ethernet drivers.