Dinstar DWG2008 Spezifikationen PDF herunterladen (Seite 22)

DWGSeriesGSM/CDMAVoIPGatewayUserManual

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The subnet mask, gateway, DNS info will also be allocated to network devices automatically by

DHCPprotocol.Generally,thereisnoneedtoconfigurethoseitems.

NOTE: Please configure the start and end IP addressed in  IP address pool, subnet mask and gateway in the

samenetworksegment.OtherdevicesinthisnetworkmaynotworkwhenobtainingtheIPaddress.

4.5.4DMZHost(Optionunder“routemode”)

In some conditions,certain devices in LAN network need to do two‐way communication with

WANnetwork(e.g.certaincomputerin LAN networkneedtoprovidemultipleservicesto WAN

network).Inthissituation,ConfigurethisdeviceastheDMZhost.



Figure4‐3‐12ConfigurationofDMZHost

4.5.5Forwardrules(Optionunder“routemode”)

Insomeconditions,certaindevicesinLANnetworkneedtoprovidechannelcommunicationwith

WANnetwork(e.g.certaincomputerinLANnetworkneedtoprovideFTPserviceof channel 21

toWANnetwork).Inthis

situation,Configuringforwardingrulestothisdeviceisnecessary.



Figure4‐3‐13Configurationofforwardingrules

Service channel is the one that should be provided to WAN network. IP address is the one of

devices in LAN net work. The device needs to provide services. Protocol is the service

protocol(TCPorUDP)

Thedifferencebetweenforwardingrulesand

DMZhostis,DMZhostprovidesseveralconsecutive

channels and communication of all protocols, while forwarding rules provides single or several

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Dinstar DWG2008 Spezifikationen Seite 22