I'm preparing to expand my virtual environment and need to revisit my multiple NIC best practice. My server ( I have a few like this) has 2 on-board NICs and then two PCI Quad NIC cards. I use on-board #1 for host interface with static IP; on-board #2 with a static address (not gateway for a separate Hyper-V machine migration network (VLAN), and then the remaining 8 NICs for LAN or DMZ connections for the guest virtual machines. Each guest VM has a static IP. My best practice question is for the 8 NICs on the 2 quad PCI cards. Should I assign a static IP without gateway to each NIC, or leave them for the DHCP server? I've used both methods before with similar results. I like the idea of the static without gateway because it keeps the DHCP address pool cleaner and is easier on DNS (i.e. I don't have 10 entries in the pool list or forward lookup zone showing the same host name), but I also like the ease of just letting DHCP do its thing and then just live with the extra entries. Thoughts?