Step 1: Setup Two PCs connected with your DUT (device under test), in this case your CPE.
PC1 is attached to LAN side and PC2 attached on WAN side
Step 2: Assign addresses to devices.
LAN side PC, PC1 will get the address from the DHCP server insed the DUT.
configure the stative IPs on
WAN side of DUT 10.10.10.10
Step 3: Check and confirm the connectivity by pinging PC2 from PC1
Step 4: Run the Jperf Application on PC1 and PC2
PC2 will act as server, click the server option and run it
PC1 will act as client, enter the IP of server, 10.10.10.100 and run it.
You will see the LAN-WAN throtuput of your device.