Disable Wireless Gateway IP Address in Opnsense

[hugginsg]

When I connect to Opnsense via wireless and open the command prompt and do an ipconfig I see my dhcp IP address and the default gateway ip address.

When I open a browser and enter the default gateway ip address the Opnsense login screen comes up.  Is there anyway to prevent a wireless user from getting to the Opnsense login screen?

Any help would be appreciated as I do not want to mess up something.

Thanks in advance