Oracle Notificacion Server and DCM ports in OracleAS 10gR2

Hi

I am performing a 14 node Oracle Application Server 10gR2 installation. I have this setup

• 2 nodes -> Metadata Repository DB: DMZ 1
• 2 nodes -> OID: DMZ 1
• 2 nodes -> SSO: DMZ 2
• 4 nodes -> MIDDLE TIER for Intranet Accesses: DMZ 2
• 4 nodes -> MIDDLE TIER for Internet Accesses: DMZ 3

Alteon Load Balancers are used for OID, SSO and Middle Tiers

Since I have 3 DMZs I have problems with ports settings in the firewall. I am clear about how to setup LBR ports however I am not sure how to setup ONS and DCM ports between OracleAS Servers.

For example, does Middle Tier Servers communicate with OID and SSO Servers using ONS and DCM? And opposite?

Cheers

LSC

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