The DHCP server used in this guide is on the external network as shown in SmartFabric topology with connections to VxRail nodes and external network. It is used to provide tunnel end point (TEP) addresses used by each ESXi host on the host overlay network. An IP address scope is configured on the DHCP server for each rack that is part of the SmartFabric. Each ESXi host uses two IP addresses, one per NSX-T network adapter port.
In this example, the following scopes are configured:
|Scope name||Start IP address||End IP address||Subnet mask||Scope options|
|Rack 1||172.25.101.1||172.25.101.80||255.255.255.0||router - 172.25.101.254|
|Rack 2||172.25.102.1||172.25.102.80||255.255.255.0||router - 172.25.102.254|