Communicating between two machine

hi all
how in oracle i can communicate between two machine via ip address.
my oracle version is--->
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Prod
PL/SQL Release 10.1.0.2.0 - Production
CORE 10.1.0.2.0 Production
TNS for 32-bit Windows: Version 10.1.0.2.0 - Production
NLSRTL Version 10.1.0.2.0 - Production
Message was edited by:
bp

Hi,
If you mean communicating between two database, you can create DATABASE LINK.
http://download.oracle.com/docs/cd/B14117_01/server.101/b10759/statements_5005.htm
Thanks

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