In Oracle database version 9i there is no way to determine the IP address through a database view. The only way to determine this IP address is with the oradebug command (Please keep in mind oradebug is not a supported product from Oracle, so if there are problems/crashes you are on your own). The oradebug ipc command creates a trace file. The example shows the process:
SQL> oradebug setmypid
SQL> oradebug ipc
SQL> oradebug tracefile_name
The last command will show the name of the created trace file. The next step is opening the trace file and looking for the string SKGXPCTX. The following is a typical example.
SKGXPCTX: 0xcd1e730 ctx
admno 0x7a0be402 admport:
SSKGXPT 0xcd1e884 flags SSKGXPT_READPENDING info for network 0
socket no 8 IP 126.96.36.199 UDP 9152
info for network 1
The cluster interconnect IP address is shown in bold. In the example above
it is 188.8.131.52.