NetBackup doesn't need ip of CoFC-storeonce or DFC-datadomain . Is it right ? Or not ?

Hi everyone

In the HPE StoreOnce catalyst for NBU user guide or Dell DDboost for NBU user guide.

The following is same :

Input the StoreOnce Catalyst (DDBoost) over Fibre Channel interface identifier or alias in the Storage server name field on the NetBackup GUI.

Catalyst over Fibre Channel interface identifier or alias : COFC-<device-id>

DDBoost over Fibre Channel interface identifier or alias : DFC-server-name

1. Do I need to add a record of ip / alias in the /etc/hosts ?

2. Do I need to enable firewall for the ip ?

Thank you.