SMC Networks Barricade SMC2404WBR User Manual page 25

Step 4: Select "Obtain an IP address automatically" in the IP Address tab. Make
sure that there are no values set under the "Gateway" tab, and choose "Disable
DNS" on the "DNS Configuration" tab. These settings will all be automatically
configured by the DHCP Services that are built-into the router.
Figure 1.3
Step 5: Press "OK" to save the changes. The system should start copying files.
Then press "Yes" when prompted to reboot the system.