The workgroup environment requires interactions between the following computers and server roles.
- The driver computer runs the test cases by sending requests over the wire in the form of protocol messages.
- The SUT runs an implementation of the protocol that is being tested. The SUT responds to the requests that the driver computer sends.

Note
Below part applies both Windows based computers and Non-Windows based computers in the test environment.
Machine Name / Access Point |
NIC |
IPv4 |
Subnet Mask |
Client01 |
External1 |
192.168.1.111 |
255.255.255.0 |
External2 |
192.168.1.112 |
255.255.255.0 |
Node01 |
External1 |
192.168.1.11 |
255.255.255.0 |
External2 |
192.168.1.12 |
255.255.255.0 |