How sql*net connections can pass through pix?

Hi,

    I have a question about pix firewall.     The computer at the outside network in my company has a requirement to  connect to the server at the inside network, the connection is oracle sql*net  connections, how can I setup the pix firewall to let sql*net connection pass  through the pix firewall, and what's the port used by sql*net?

    Any Help will be highly appreciated.     The answers can be put to the group and also to my mailbox.

                                            Will

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