Specifications

RobustelGoFixedW800UserGuide
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RT_W800_UG_v02.00 04.11.2011 Page42/5 9 
Confidential
oftheGATEWAYtousethebuilt‐inDNSserver(recommended).
GetDNSServerfromWAN‐selecttopasstheDNSserveraddressesobtainedautomaticallyfromtheWANinterface
totheDHCPclients.
ConfigurethesecondIPaddress‐selecttoassignanadditionalIPaddresstothegateway(advancedoption).
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Note:
1.WhenusingtheDHCPServ ers,pleasemakesureyoudon’thavemultipleDHCPServersinoneLAN.
2.ToviewalistofclientsthathavebeenassignedaddressesbytheDHCPservergotothepathDHCP‐>Assigned
Leases
3.ToreserveanIPaddresswithintheDHCPrangeforaclientsothattheclientalwaysreceivesthesameIPaddress
goto thepath DHCP‐> StaticLeases.Click the Add StaticLeasebutton and entertheMAC address and requiredIP
Addressfortheclient.MakesurethattheIPaddresschoseniswithintherangeenteredontheLANSetuppage.
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3.10 Firewall
3.10.1FirewallSettings
Please go to path: Firewall‐> Firewall Settings page, check Enable to activate Global firewall settings, then click
Apply/SAVE.
Note:threeFirewalllevelsaresupportedintheGateway,theyare:
 Low:enablebasicfirewallfeature‐preventportfromscanning;allowPINGfromWANside;allowICMPredirect
messagesfromWANside.
 Middle:basedonlowlevel,preventICMPredirectmessages.
 High:basedonmiddlelevel,preventSYNFloodattack;againstPINGfromWANside.
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Note: by default the Firewall is enabled and set to the “High” setting – it is recommended that to maintain maximum
securitythissettingisnotchanged.
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3.10.2IPFilters
WhenthefirewallisenabledonaWANorLANinterface,allincomingIPtrafficisBLOCKED.However,someIPtraffic