Manual

Software User Guide 68
Network Tab
OriginalSourceSubnet(Required):Enterthesubnet,usingIP/CIDRnotationthatwi llbemasqueradedoutofaspe‐
cificinterface.Alltrafficthatissourcedfromthissubnetandthatisdestinedtogooutthespecifiedinterfacewillbe
masqueradedwiththesourceIPaddressoftheinterfacespecified.
Interface:
Selectthedesiredinterfacethroughwhichyouwishtomasqueradesourceaddressesfromthedrop‐down
menu.
• ClickontheFinishbutton.YouwillbereturnedtotheMasquerade/NAT/DMZRulesdialogwindowandtheMas‐
queradeRulestablewillnowbepopulatedwiththerecentlyentereddata.
• Todeletean
existingrule,selectitinthetableandclickontheDeletebutton.Toeditanexistingrule,selectitin
thetableandclickontheEditbutton.
NAT(NetworkAddressTranslation)Rules:TheNATRulesenablesaccesstotheInternetthroughasinglemachinethat
translatestheIPaddresses.
TheNATitselfhasoneormoreIPaddresses,butallthemachinesbehindtheNAThave‘pri‐
vate’Internetaddresses.
One‐to‐OneNATwillperformacompleteforwardingofappportsontheOriginalDestinationIPtoanewIPaddress
enteredinNewDestina t ion.BecausetheOriginalDestination
neednotbeconfiguredonthisrouter,aninterfaceisnot
requiredtosetup.
One‐to‐OneNATRangewillperformthesameoperationasasingleOne‐to‐Onerule,butoverarangeofmatchedIP
Addresses.ThepooldefinedbytheOriginalIPStart‐>End(thefirst
OriginalIPwillalwaystranslatetothefirstNewIP,the
secondtothesecond,etc).Thenumberofentriesineachpoolmustmatch.
NAT(One‐to‐One)rule:
• ClickontheAddbuttonandthefollowingpop‐upwindowwillappear: