We have a NIC dedicated to WAN traffic, management, etc (this NIC has the gateway in it). We have separate NICs for iSCSI traffic. Right now they are in the same subnet though that may change.
In looking at the NIC properties for the iSCSI NICs, the following are enabled/checked and we are wondering if they are needed or useful (for traffic, access, monitoring, etc):
Client for Microsoft Networks
QOS Packet Scheduler
File and Print Sharing for Microsoft Networks
IPv4 (yes of course it's needed)
Link-Layer Topology Discovery Mapper I/O Driver
Link-Layer Topology Discovery Responder