Specifications

ENglISH VErSIoN
18
ToconfigureadeviceforastaticDHCPaddress,filloutthedesiredaddressandthedevice’scorrespondingMACaddressintheStaticIPsection,then
clickthe“Add”buttonand“Apply”.LookatthelisttoseetheIPandMACaddressesofallautomaticallyconfigureddevicescurrentlyactiveonyour
network.
Note:DonotassignstaticDHCPaddressesintherange192.168.31.100to192.168.31.200!Thisrangeisalreadyusedfordynamicallyassigned
addresses.Theaddresses192.168.31.1(therouteritself)and192.168.31.255(broadcastaddress)mayalsonotbeused.
Port forwarding (virtual server) and DMZ setup
Forcertainapplications,devicesandservers,itmaybenecessarysosetupportforwardingforthemtooperateproperlybehindtherouter’sfirewall.
Thisisbecausebydefault,thefirewallblocksallincomingconnectionsandallowsonlyoutgoingconnections.Fortechnicalreasonsthebuilt-in
firewallisinherenttotheroutingfunctionandcannotbedisabledcompletely.
PortforwardinginstructstheroutertoacceptanincomingconnectiononacertainportandforwardittotheIPaddressofadeviceinyourlocal
network.PleasenotethatuseofthetermportinthischapterreferstoTCPorUDPportsandisnotrelatedtothephysicalWANandLANportsatthe
backoftherouter.
DMZisaspecialcaseofportforwardingwheretherouterisinstructedtoforwardallincomingconnectionstothespecifiedaddress.
Tosetupportforwarding,logintotherouterasdescribedinthe“Advancedsetup”chapterandclick“VirtualServer”–“PortRangeForwarding”in
themenuontheleft.Youwillseethefollowingscreen:
Toforwardasingleport,enterthedesiredportnumbertwiceinthefirstemptyrule,entertheIPaddressthattheportshouldbeforwardedtoand
selectthedesiredprotocol,checkthe“Enable”checkboxandclickthe“Apply”button.Toforwardmultipleadjacentportsatonce,justenterthefirst
portinthe“StartPort”fieldandthelastportinthe“EndPortfield”.
Itisnotpossibletoforwardmorethan10portranges.
ForaDMZ,click“DMZ”inthemenuontheleft,entertheIPaddressofthedevice,checkthe“Enable”checkboxandclickthe“Apply”button.
LW310V2_Manual_01.indd 18 03-11-09 13:32