The 'Deny Local LAN' function located under Configure > Firewall & traffic shaping blocks access from Wireless clients on specific SSIDs to the Local LAN. For the purposes of this firewall rule, Local...The 'Deny Local LAN' function located under Configure > Firewall & traffic shaping blocks access from Wireless clients on specific SSIDs to the Local LAN. For the purposes of this firewall rule, Local LAN is described as any destinations IP address within RFC1918 private address spaces.