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2251653 - Oracle Listener failed to start with TNS-01198


You are facing the following error message while trying to start the listener after an Oracle upgrade from to 12c:

hostname:ora<sid> > lsnrctl start
LSNRCTL for IBM/AIX RISC System/6000: Version - Production
Starting /oracle/<SID>/121/bin/tnslsnr: please wait...
TNS-01198: Listener failed to initialize valid node list
NL-07010: failed to get subnet mask
NL-00408: cannot find or read value



  • UNIX/Windows server
  • Oracle RDBMS 12c


KBA , BC-DB-ORA , Oracle , BC-NET , Network Infrastructure , Problem

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