You can use the Service access control options to allow and restrict specific functions of your router. After you have selected or deselected your options, click Apply.
HTTP: Select to allow access to the router's configuration pages from the LAN or WAN.
ICMP: Select to enable ICMP response for the router's WAN.
TELNET: Select to allow Command Line Interface access by Telnet from the LAN or WAN.
Return to the Internet menu options.