Ericsson W3X manual Nat

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Configuration and Management

3.7NAT

The Ericsson W3x includes a NAT (Network Address Translation) service. With this service several computers on a LAN/WLAN can share the same Internet connection using a single public IP address.

Devices on the LAN/WLAN use dedicated private IP addresses, which cannot be used on the Internet. When a computer on the LAN/WLAN want to send a data package to the Internet, its IP address is automatically translated by NAT to an external (public) IP address allowed on the Internet. When a reply receives to this external IP address, it is translated back to the origin private IP address to be able to found its way back to the sending computer on the LAN/WLAN.

In this way, details about the local devices remain private and it is not possible to access a local computer on the LAN/WLAN directly from the Internet.

The NAT page includes the following settings:

Figure 37 - NAT page

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Contents Ericsson W3x Series Trademark List CopyrightDisclaimer Contents LAN PC Configuration Battery W35 onlyTroubleshooting Telephony and Fax W35 onlyGlossary Structure of this Guide IntroductionRelated Documents Ericsson W30 Data Router Product VariantsOverview of Interfaces on the Ericsson W30 W30 Data RouterW35 Data and Voice Router Feature SummaryWireless Broadband Services at Reliable High Speed Voice Services Local Wireless Access with High-level SecurityFax Service Battery back-upBack Side Interfaces HousingLabel Description Ethernet Reset10-28VDC Label Description PhoneButton Left Side InterfacesInterface Type Description Front Panel Signal Quality IndicatorRight Side Interface Symbol Color Description 4.2 W30 LED Indicators4.3 W35 LED Indicators Standby Button Built-in Ethernet IndicatorsAccess and Login to the Web User Interface Configuration and ManagementEnter PIN Code Enter PasswordEnter password Inactivity TimeoutEnter password page after inactivity timeout Overview OverviewAlarm cause Description AlarmsNetwork Information Enable the Wireless LAN Wireless LAN Configuration WizardNetwork Name Wireless LAN AuthenticationWPA, WPA2 High security Open No securityWEP-64, WEP-128 Low security Open WPA/WPA2 Mixed High securityWEP Encryption Key Wireless LAN WEP 64 BIT3.3 WPA/WPA2 Passphrase Wireless LAN WPAWireless LAN WPA2 Wireless LAN Configuration Wizard Confirmation Internet InternetMobile Network Connection Details Service providerLink Status ModeTraffic Statistics AuthenticationDNS TextAuthentication PPP passwordAuto APN PPP user nameUnlock Operator Lock Unblock SIMText Description Region Cellular Band SelectionChange PIN 2G Settings 3G SettingsLAN IP Address LANDhcp Server IP address range Text Description Enable Dhcp serverFrom IP address range toLeases LAN Port StatusEnable Wlan Wireless LANRegion Transmit Power dBmRadio Channel Data RateText Description MAC Address Scan for Wireless NetworksNetwork Name ChannelNetwork Name Ssid Enable Ssid broadcastWlan Security Text Description Network name Ssid8.3 WPA/WPA2 and Passphrase High security WEP and WEP Encryption Key Low securityWhitelist Connected DevicesAdd Clients to the Whitelist Find a Wireless Client MAC AddressNAT NATApplication Protocol Port Number UPnP IGDApplication Level Gateways Text Description NAT Port Port ForwardingServer IP Server PortPort Forwarding Example Application Server PortDelete Port Forwarding Rule Edit Port Forwarding RuleHow it Works File and Printer SharingSafe Removal of a USB Device Host Name and WorkgroupFile Sharing Share name Printer SharingText Description Storage device Shared printer description System SystemBasic System Information Configuration Backup and RestoreSystem Restart Restore from Backup FileRestart Progress Message Software UpdateSoftware update complete Factory ResetConfiguration and Management Event Log Event LogPersistent Logging Change PasswordLogout Telephony and Fax W35 only SIM AuthenticationName Information TonesPIN required PUK requiredBattery Function Installation of the BatteryWindows XP IP SettingsObtain IP Settings Automatically Windows Configure Static IP Address Wireless LAN SettingsPrepare the Wireless Clients Install the Wireless LAN InterfaceConfigure Access to the W3x Wlan USB Sharing SettingsCheck Workgroup Settings Set Up a Connection to a Shared Storage Device Access a Shared Storage DeviceAccess a Shared Printer Printer Supporting the RAW Protocol Printer Supporting the Samba ProtocolFinish in the Add Printer Wizard Select Do not share this printer option and click NextRestart Reset to Factory Default SettingsLAN Connections Indication/Symptom What to do Internet AccessUser IP address is definedChange TCP Settings Wireless LAN ConnectionConfiguration Ansi Access to Shared Files or PrinterTelephony and Fax Service W35 only Pstn APN Access Point Name AP Access PointCdma Code Division Multiple Access Chap Challenge-Hanshake Authentication ProtocolGprs General Packet Radio Service Dhcp Dynamic Host Configuration ProtocolHspa High Speed Packet Access Dhcp serverElectronics Engineers MAC address Media Access Control addressImei International Mobile Equipment Identity IP Internet ProtocolPassphrase Pstn Public Switched Telephone NetworkPC Personal Computer PIN Personal Identification NumberSwitching Ssid Service Set IdentifierUmts Universal Mobile Telecommunications Service SubnetWireless WEP Wired Equivalent PrivacyWlan Wireless Local Area Network WPA Wi-Fi Protected Access
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