User's Manual Part 2

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37JadeOSUserManual
(JadeOS) (config-if)#arp authorized
Note:ARPlearningwillbedisabledafterenablingARPwithDHCP.
¾ DisableARPwithDHCPfunction：
Step1TosaveclientARPinformation,usenoupdatearpcommandtodisableARP
function:
(JadeOS) (config)#ip dhcp pool ABC
(JadeOS) (config-dhcp)#no update arp
Step2EnableARPlearningfunction
(JadeOS) (config)#interface vlan 6
(JadeOS) (config-if)#no arp authorized
YoucaninquiryclientARPinformationbyshowarpcommand.
6.7ConfiguringOSPF
OpenShortestPathFirst(OSPF)isanadaptiveroutingprotocolforInternetProtocol
(IP)networks.Itusesalinkstateroutingalgorithmandfallsintothegroupofinterior
routingprotocols,operatingwithinasingleautonomoussystem(AS).Thisallowsthe
JadeOStodeployeffectivelyinaLayer3topology.TheJadeOScanactasdefault
gatewayforallclientsandforwarduserpacketstotheupstreamrouter.
6.7.1OSPFImplementation
JadeOSOSPFimplementationconformstotheOSPFVersion2specificationsdetailed
intheInternetRFC2328.ThelistthatfollowsoutlineskeyOSPFfeaturessupported
onJadeOS: 
z NSSAareas(RFC3101)supported.
z Routeredistribution—RouteslearnedviaanyIPprotocolcanberedistributedin
toanyotherIProutingprotocol.
z Authentication—Plaintextauthentication amongneighboringrouterswithinan
areaissupported.
z Routinginterfaceparameters—Configurableparameterssupportedincludein‐
terf aceoutputcost,retransmissioninterval,interfacetransmitdelay,routerpri‐
ority,router“dead”and“hello”intervals,andmessagedigestkey .
6.7.2EnablingOSPF
OSPFisdisabledbydefault.ToenabletheOSPFfunctiononJadeOS,usethefollowing
commandintheconfigurationmode:
(JadeOS)(config)# router ospf