User's Manual

Chapter 3: Connections and setup
25
Illustrationscontainedinthisdocumentareforrepresentationonly.
PortFiltering
Thispageallowsyoutoenterrangesofdestinationports(applications)thatyoudon’twantyourLAN
PCstosendpacketsto.AnypacketsyourLANPCssendtothesedestinationportswillbeblocked.For
example,youcouldblockaccesstoworldwidewebbrowsing(http=port80)butstillallowemailservice
(SMTPport25andPOP3port110).Toenableportfiltering,setStartPortandEndPortforeachrange,
andclickApply.Toblockonlyoneport,setbothStartandEndportswiththesamevalue.
Fig.15:PortFilteringSettings