Remote BDC installation for NT4.0

I’m installing a BDC at remote site . My problem is during the installation, while the BDC is looking to PDC ( after key-in domain name and admin ID&password ), the BDC cannot find the PDC.

My question
1. What is the corrent way to setup DBC at remote
site

2. How to get connected to remote PDC while instaling new BDC at remote site

Thanks