Authentication help

Hi

In our project we are trying we have 2 EP boxes. Following are the details of the boxes

1. EP6.0 (NW04), All our current applications are running here, also NTLM and LDAP is installed and configured for this box

2. EP7.0 (NW04s), CRM 5.0 is also running in this environment.

We are planning to access the EP 7.0 CRM PCUI content from EP 6.0 system through global portal mechanism.

The question here is do I need to do the NTLM and LDAP configuration in my EP 7.0 box for authentication and authorization or else the authorization and authentication defined in the EP 6.0 box will suffice.

Any help in this is highly appreciated.

Thanks

Regards

Senthil