两个监听在不同IP、相同端口1521上监听多个实例

# LISTENER.ORA Network Configuration File: /usr/oracle/network/admin/listener.ora
# Generated by Oracle configuration tools.
ORANLDB =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.180.201)(PORT = 1521))
    )
    (DESCRIPTION =
      (PROTOCOL_STACK =
        (PRESENTATION = GIOP)
        (SESSION = RAW)
      )
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.180.201)(PORT = 2481))
    )
  )
SID_LIST_ORANLDB =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PL***tProc)
      (ORACLE_HOME = /opt/oracle/product/10.2.0.4)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = oranlDB)
      (ORACLE_HOME = /opt/oracle/product/10.2.0.4)
      (SID_NAME = oranlDB)
    )
  )
 
ORADB =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.180.203)(PORT = 1521))
    )
    (DESCRIPTION =
      (PROTOCOL_STACK =
        (PRESENTATION = GIOP)
        (SESSION = RAW)
      )
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.180.203)(PORT = 2881))
    )
  )
SID_LIST_ORADB =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PL***tProc)
      (ORACLE_HOME = /opt/oracle/product/10.2.0.4)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = oraDB)
      (ORACLE_HOME = /opt/oracle/product/10.2.0.4)
      (SID_NAME = oraDB)
    )
  )