NetComm Gateway Series manual Gateway behind a NAT/Firewall Network, Requirements

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Gateway behind a NAT/Firewall Network

The VoIP gateway uses a private IP address and the Internet sharing function of other systems to connect to the Internet.

The following diagram shows a typical network connection in which broadband devices such as an ADSL router work in router (NAT) mode so that the gateway is behind a NAT/Firewall. In this case, the broadband router (NAT/Firewall) and the gateway need to be configured correctly in order to allow the gateway to communicate with the Internet and VoIP network properly, using different techniques to traverse the NAT/Firewall.

Note:	The above diagram shows a 4-port SmartVoice gateway for illustration purposes.
	An 8 port SmartVoice gateway could also be used depending upon your network
	requirements.

SmartVoice Gateway(s) User Guide	13
YML832 Rev2

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Contents Reference Guide Contents To ensure your Gateway complies with Australian Standards Important NoteProduct Overview IntroductionVoIP Service Broadband ServiceItems that you will need and things you will need to know Computer/NetworkVoice Features NetComm SmartVoice Gateway FeaturesAdvance Firewall and DoS Protection Configuration & Maintenance Features are only available in models which have FXO ports General SpecificationsNetwork SmartVoice Gateways User Guide YML832 Rev2 Rear Panel all models Restore the GatewayConnecting your SmartVoice Gateways Installation and ApplicationsGateway Assigned with a Public IP Address Network ConnectionsNetwork requirements Requirements Gateway behind a NAT/Firewall NetworkStun client Needs to be set up as either in static IP, DHCP, or PPPoE Integrating the SmartVoice Gateway with PBX Telephone ConnectionIntegrating the SmartVoice Gateway with PBX Integrating the SmartVoice Gateway with PBX Instructions Configuring the Gateway via WEB BrowserIP Configuration Setting WAN Port Network SettingsSetting Dynamic IP Dhcp Clone MAC DNS SettingsNetwork Settings LAN LAN interface modeWAN QoS QoS SettingsNAT/DDNS NAT Traversal Example DdnsPrefix Number Rules Telephony SettingsHotline Functions FXO Line VoIP call in optionsDescription SIP Settings 164 SmartVoice Gateways User Guide Each line registers to Proxy independently FXS/ FXO Representative number registers to ProxyPrivate Network Server SettingsPrivate Network Numbers Calling Feature Instructions Calling FeaturesAdvanced Options Payload Type payload type of RFC2833 Flash Time Line SettingsCodec Settings Fax Settings Drop Inactive Call Digit Map Phone Book Speed Dial Caller Filter Transit Call Control Gateway a PIN Code * Gateway B Number Dialing principle to enable PIN codeLong Distance Exception Table Long-Distance Control TableBusy Tone Cadence Measurement CPT/Cadence SettingsCPT parameters Table CPT Auto Detect Direct Connection to Pstn SmartVoice Gateways User Guide YML832 Rev2 Connected to a PBX Extension Line 36008914 Filling in the CPT Table Save SettingsCurrent Status and System Information RTP Packet Summary Stun Inquiry Ping Test Port Filtering IP Filtering MAC Filtering Virtual Server DMZ URL Filter Special Applications DoS Prevention Settings Enable Source IP Blocking Block the IP NTP Network Time Protocol Backup and Restore ConfigurationProvision Settings System Operations Save Settings Software Upgrade Logout Configuration Methods Configuring the Gateway via IVRPreparation Inquire Current Gateway’s WAN Port IP address IVR Interactive Voice ResponseDNS IP address Set/Query IVR Functions TableSet/Query Gateway Telephone Number Representative Number Adsl PPPoE Settings IP Configuration Settings WAN port Static IP SettingsPPPoE Password Setting PPPoE Account SettingsSave Settings and Restart Select PPPoEPPPoE Character Conversion Table Instruction Dialing and dialed number routing principleDialed Number Processing Flow End 10BASE-T Appendix a GlossaryDNS Http NAT TCP VSP RJ-45 Network Ports Appendix B Cable InformationStraight-Through Cabling Straight and crossover cable configurationCross-Over Cabling Contact Information Appendix C Registration and Warranty InformationProduct Warranty PO Box 1200, Lane Cove NSW 2066 Australia