You can install multiple NSX Edge services gateway virtual appliances in a data center. Each NSX Edge virtual appliance can have a total of ten uplink and internal network interfaces. The internal interfaces connect to secured port groups and act as the gateway for all protected virtual machines in the port group. The subnet assigned to the internal interface can be a publicly routed IP space or a NATed/routed RFC 1918 private space. Firewall rules and other NSX Edge services are enforced on traffic between interfaces.

Uplink interfaces of NSX Edge connect to uplink port groups that have access to a shared corporate network or a service that provides access layer networking.

Multiple external IP addresses can be configured for load balancer, site-to-site VPN, and NAT services. Overlapping IP addresses are not allowed for internal interfaces, and overlapping subnets are not allowed for internal and uplink interfaces.