Buffalo AirStation WHR-HP-G54 User Manual page 34

IP Filter (Add/Delete Basic Rules)
Get here by clicking on Add/Delete Basic
Rules from the previous page. You may
choose which of AirStation's preconfigured
basic rules are enabled or disabled. Active
rules are displayed with a green background,
and disabled rules are shown in red. Choose
the rules you want to use by clicking under
Operation. When your choices are complete,
click on Initialize.