I would like to seek help on the following;

I am running a NW4.11 (IPX) server and intend to add another NW6.5
(TCP/IP) on the same network. Eventually, I will remove the NW4.11 server
from the network.

I would like to have them as separate servers with different NDS. Users
will be allow to login to either or both servers until the removal of
NW4.11 server. The user may use the same userid or different userid.

Q1. in the above scenario, can I skip the NDS update (Network Deployment
Manager) on the W4.11 server, install and add the NW6.5 on a new server
into the network?

Q2. what are the important setting to take note with the above setup?