Radwin 5000

RADWIN5000ConfigurationGuide Release4.9.17 4‐34
Nomadic ManagingtheSector
DHCPRelayAgent(Option82):AllowsaDynamicHostConfigurationProtocol
(DHCP)relayagent(inthiscasetheHBS)toinsertspecificinformationtoaDHCP
request,andforwardtheinformationtogetherwiththerequesttoaDHCPserver.
Thiscapabilityallowstheresidentialoperator(whichhastheDHCPserver)to
distinguishwhichDHCPIPrequestcamefromwhichHSU.Withthatinformation,the
residentialoperatorcansetrulesregardingIPaddressandresourceallocation.For
example,iftherearetoomanyIPrequestscomingfromoneHSU,itispossibleto
limittheIPaddressesallocatedtothatequipment.
IntheframeworkoftheRADWIN5000,thisworksasfollows:
•TheHSUreceivesDHCPrequestsfromequipmentconnectedtoit.
•TheHSUforwardstheserequeststotheHBS.
•TheHBSappendstheMACaddressoftheHSUandthatoftheHBStothe
message,andforwardstherequestmessagewiththeappendeddatatothe
DHCPserver.
Figure4‐19:DHCPRelayAgent(Option82):Methodofoperation
4.2.11Nomadic
Seepage 3‐27forafullexplanationoftheNomadicoptions.