Full Cone NAT | ZyXEL Communications 2000W specs

Prestige 2000W_V2 User’s Guide

The following table summarizes how these NAT types handle outgoing and incoming packets. Read the following sections for more details and examples.

Table 12

	FULL CONE	RESTRICTED CONE	PORT RESTRICTED	SYMMETRIC
	FULL CONE	RESTRICTED CONE	CONE	SYMMETRIC

Outgoing	The NAT router maps the internal IP address and port of all outgoing			The NAT router maps
Packets	packets to a single IP address and port on the external network.			the internal IP
				address and port of
				each outgoing packet
				to a different external
				IP address and port
				for each different
				destination IP
				address and port.
Incoming	Any external host can	Only external hosts	Only external hosts	A host on the
Packets	send packets to the	with an IP address to	with an IP address	external network can
	external IP address	which the internal	and port to which the	only send packets to
	and port.	host has already sent	internal host has	the specific external
		a packet can send	already sent a packet	IP address and port
		packets to the	can send packets to	that the NAT router
		external IP address	the external IP	used in sending a
		and port.	address and port.	packet to the external
				host’s IP address and
				port.

The examples in these NAT type sections describe NAT translation between internal (private) and external (public) IP addresses.

12.11.2.1 Full Cone NAT

In full cone NAT, the NAT router maps all outgoing packets from an internal IP address and port to a single IP address and port on the external network. The NAT router also maps packets coming to that external IP address and port to the internal IP address and port.

In the following example, the NAT router maps the source address of all packets sent from the Prestige’s internal IP address 1 and port A to IP address 2 and port B on the external network. The NAT router also performs NAT on all incoming packets sent to IP address 2 and port B and sends them to IP address 1, port A.

Chapter 12 User Web Configurator Screens

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Image 83

ZyXEL Communications 2000W manual Full Cone NAT, Full Cone Restricted Cone Port Restricted Symmetric

Contents

Prestige 2000WV2 Page Prestige 2000WV2 User’s Guide CopyrightDisclaimer Trademarks Certifications Federal Communications Commission FCC Interference Statement Safety Warnings Safety Warnings ZyXEL Limited Warranty ZyXEL Limited Warranty Customer Support Customer Support United Kingdom Table of Contents Chapter Network Settings Chapter Information Menus Appendix a Product Specifications 107 Appendix B Appendix C Prestige 2000WV2 User’s Guide Table of Contents List of Figures List of Figures Peer-to-Peer Communication in an Ad-hoc Network 119 List of Tables List of Tables Eight Subnets Syntax Conventions PrefaceAbout Your Prestige Related Documentation Graphics Icons Key User Guide Feedback Getting To Know Your Prestige Features Place a Call via SIP Proxy Server SIP Call Server Applications Direct IP to IP Calling Ad-Hoc Wireless Intercom Prestige Hardware Descriptions Getting to Know the Prestige Hardware Prestige 2000WV2 User’s Guide Prestige 2000WV2 User’s Guide Getting To Know Your Prestige LCD Main Screen Using the LCD Screen MenusUsing the LCD Screen Menus Prestige 2000WV2 User’s Guide LCD Main Screen Navigating the LCD Screen MenusText Input Press the OK key when you are done Prestige 2000WV2 User’s Guide Using the LCD Screen Menus Select Site Survey Wireless LAN Setup MenusWireless LAN Setup Menus Site Survey Arrow to highlight it and then press the Left key Network ModeSelect Wireless in the first menu screen use the up or down Ssid Channel Select Network Mode WEP Encryption Rate Select Key Select Authentication Type Profiles WEP for encryption, not for authentication Create Prestige 2000WV2 User’s Guide Wireless LAN Setup Menus Select IP Address Network SettingsNetwork Settings Fixed IP Select Subnet Mask Dhcp PPPoE Select PPPoE Pwd Select PPPoE Name Select Registrar Select Registrar IP SIP SettingsSIP Settings Registrar Server Select Outbound Proxy Outbound Proxy ServerSelect Expiry Time Select Proxy Server Proxy Server Select User Account Select Phone Number User Account Select User Pwd Prestige 2000WV2 User’s Guide SIP Settings Phonebook PhonebookCalling Methods Adding a Phonebook Entry Select Add Entry Editing Phonebook Entries Erasing Phonebook Entries Select Speed Dial Speed Dial Phonebook Entries Call History Call HistoryMissed Calls Received Calls Erasing Calls Dialed Calls Select Erase Calls Miscellaneous Settings Miscellaneous SettingsSetting the Ring Melody Select Ringer Volume Setting the Vibration ModeAdjusting the Ring Volume Select Edit Date Setting the TimeSetting the Date Select Edit Time Press the Left key to save your setting Setting the BannerSetting the Key Lock Select Settings in the first menu screen Select Don’t Disturb Setting the Don’t Disturb Prestige 2000WV2 User’s Guide Miscellaneous Settings Information Menus Information MenusDisplaying Information Select MAC Address 11Select Firmware Ver Dialing a Telephone Number Using the Phonebook to Dial a Telephone NumberUsing Speed Dial to Dial a Telephone Number Prestige Usage Rejecting a Call Changing the VolumeAnswering a Call Using the Web Configurator Screens Using the Web Configurator ScreensIntroduction to the Web Configurator Login Login Screen Navigating the Prestige Web Configurator Phone Book Web Configurator User Screens SummarySIP NAT Trvsl TOS/DS Web Configurator Administrator Screens SummaryPhone IP Address Assignment User Web Configurator ScreensUser Web Configurator Screens Device Information MAC Address IP Address and Subnet Mask DNS Server Network Configuration Static Apply Network Configuration DhcpCancel Dhcp PPPoE Network Configuration Network Configuration PPPoE PPPoE VoIP Introduction12.9.1 SIP SIP Identities Invite SIP Call ProgressionSIP Client Server SIP Call Progression SIP Proxy Server 12.9.1.4 RTP SIP Configuration SIP Proxy 12.11 NAT NAT Types NAT Example Full Cone Restricted Cone Port Restricted Symmetric Full Cone NAT Full Cone NAT Example Restricted Cone NAT Symmetric NAT Port Restricted Cone NAT Fake WAN Address on SIP and RTP NAT and SIPSIP ALG Outbound Proxy NAT Traversal ConfigurationStun ALG NAT Traversal Configuration Stun Phone Book ConfigurationPhone Book Calling Methods Delete Phonebook Prestige 2000WV2 User’s Guide Phonebook Wireless IntroductionWireless Settings WEP Encryption WEP Ssid Submit 12.19 S/W UpdateSystem Zip files before you can upload them W Update Administrator Web Configurator Screens Administrator Web Configurator Screens Type the SIP proxy server settings SIP Proxy Configuration SIP URI SIP Configuration 13.3.1 G.711 Prestige 2000WV2 User’s Guide IP ConfigurationVoice Coding 13.3.2 G.729 Pstn Call Setup SignalingPhone Setting 100 Administrator Web Configurator Screens Administrator Web Configurator Screens 101 Quality of Service Introduction to DiffServ 102 Administrator Web Configurator Screens13.8 ToS Problems Using the Keypad TroubleshootingProblems Starting Up the Prestige 104 Troubleshooting Problems Accessing the PrestigeTroubleshooting Accessing the Prestige Troubleshooting 105 Error Message TroubleshootingRestoring the Factory Default Settings Error Message Troubleshooting Prestige 2000WV2 User’s Guide 106 Troubleshooting MIC Specification TablesHardware Specifications Appendix a Product Specifications 107 Essid Prestige 2000WV2 User’s Guide Firmware Features108 Appendix a Product Specifications HTTP, TFTP, TCP, UDP, DNS, ARP, Icmp Appendix B IP Subnetting 109 IP AddressingIP Classes Classes of IP Addresses Natural Masks Subnet MasksSubnetting Allowed IP Address Range By Class Appendix B IP Subnetting 111 Example Two SubnetsAlternative Subnet Mask Notation Two Subnets Example 112 Appendix B IP Subnetting Subnet Appendix B IP Subnetting 113 Example Four Subnets 114 Appendix B IP Subnetting Example Eight SubnetsEight Subnets Class C Subnet Planning Appendix B IP Subnetting 115 Subnetting With Class a and Class B NetworksClass B Subnet Planning Prestige 2000WV2 User’s Guide 116 Appendix B IP Subnetting Appendix C PPPoE 117 PPPoE in ActionBenefits of PPPoE Traditional Dial-up Scenario Prestige as a PPPoE Client How PPPoE Works Appendix D Wireless LANs 119 Wireless LAN TopologiesAd-hoc Wireless LAN Configuration 120 Appendix D Wireless LANs Basic Service Set Infrastructure Wlan Appendix D Wireless LANs 121 Prestige 2000WV2 User’s Guide 122 Appendix D Wireless LANs Dtmf IndexNumerics Index 123 711 22, 98 729 22, 99 124 Index Index 125 SIP ALG 126 Index Wlan Index 127