Kyocera KR1 manual Sites.By default the Filters is IP Filters

Advanced > Filters > IP Filters

Filters-	Filters are used to deny or allow LAN (Local Area Network) computers from accessing the Internet.
	The Kyocera KR1 Mobile Router can be setup to deny internal computers by their IP or MAC
	addresses. The Kyocera KR1 Mobile Router can also block users from accessing restricted web
	sites.By default the Filters is IP Filters.
IP Filters-	Use IP Filters to deny LAN IP addresses from accessing the Internet. You can deny specific port
	numbers or all ports for the specific IP address.By default the IP Filters is Disabled.
IP-	The IP address of the LAN computer that is denied access to the Internet.
Port-	The single port or port range that is denied access to the Internet.
Schedule-	This is the schedule of time when the IP Filter gets enabled. By default the Schedule is Always.

Using the Configuration Menu 19