Appendix B IP Subnetting | ZyXEL Communications 2000W specification

Prestige 2000W_V2 User’s Guide

Note: In the following charts, shaded/bolded last octet bit values indicate host ID bits “borrowed” to form network ID bits. The number of “borrowed” host ID bits determines the number of subnets you can have. The remaining number of host ID bits (after “borrowing”) determines the number of hosts you can have on each subnet.

Table 35 Subnet 1

	NETWORK NUMBER	LAST OCTET BIT
	NETWORK NUMBER	VALUE
		VALUE
IP Address	192.168.1.	0

IP Address (Binary)	11000000.10101000.00000001.	00000000

Subnet Mask	255.255.255.	128

Subnet Mask (Binary)	11111111.11111111.11111111.	10000000

Subnet Address: 192.168.1.0	Lowest Host ID: 192.168.1.1

Broadcast Address:	Highest Host ID: 192.168.1.126
192.168.1.127

Table 36 Subnet 2

	NETWORK NUMBER	LAST OCTET BIT VALUE

IP Address	192.168.1.	128

IP Address (Binary)	11000000.10101000.00000001.	10000000

Subnet Mask	255.255.255.	128

Subnet Mask (Binary)	11111111.11111111.11111111.	10000000

Subnet Address:	Lowest Host ID: 192.168.1.129
192.168.1.128
Broadcast Address:	Highest Host ID: 192.168.1.254
192.168.1.255

The remaining 7 bits determine the number of hosts each subnet can have. Host IDs of all zeros represent the subnet itself and host IDs of all ones are the broadcast address for that subnet, so the actual number of hosts available on each subnet in the example above is 27 – 2 or 126 hosts for each subnet.

192.168.1.0 with mask 255.255.255.128 is the subnet itself, and 192.168.1.127 with mask 255.255.255.128 is the directed broadcast address for the first subnet. Therefore, the lowest IP address that can be assigned to an actual host for the first subnet is 192.168.1.1 and the highest is 192.168.1.126. Similarly the host ID range for the second subnet is 192.168.1.129 to 192.168.1.254.

112	Appendix B IP Subnetting

Image 112

ZyXEL Communications 2000W manual Appendix B IP Subnetting

Contents

Prestige 2000WV2 Page Copyright DisclaimerTrademarks Prestige 2000WV2 User’s Guide Federal Communications Commission FCC Interference Statement Certifications 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 Preface About Your PrestigeRelated Documentation Syntax Conventions User Guide Feedback Graphics Icons Key Features Getting To Know Your Prestige Applications Place a Call via SIP Proxy Server SIP Call Server Ad-Hoc Wireless Intercom Direct IP to IP Calling Getting to Know the Prestige Hardware Prestige Hardware Descriptions Prestige 2000WV2 User’s Guide Prestige 2000WV2 User’s Guide Getting To Know Your Prestige Using the LCD Screen Menus Using the LCD Screen MenusLCD Main Screen Text Input Navigating the LCD Screen MenusPrestige 2000WV2 User’s Guide LCD Main Screen Press the OK key when you are done Prestige 2000WV2 User’s Guide Using the LCD Screen Menus Wireless LAN Setup Menus Wireless LAN Setup MenusSite Survey Select Site Survey Network Mode Select Wireless in the first menu screen use the up or downSsid Arrow to highlight it and then press the Left key Select Network Mode Channel Rate WEP Encryption Authentication Type Select Key Select WEP for encryption, not for authentication Profiles Create Prestige 2000WV2 User’s Guide Wireless LAN Setup Menus Network Settings Network SettingsFixed IP Select IP Address Dhcp Select Subnet Mask PPPoE Select PPPoE Name Select PPPoE Pwd SIP Settings SIP SettingsRegistrar Server Select Registrar Select Registrar IP Select Expiry Time Outbound Proxy ServerSelect Outbound Proxy Proxy Server Select Proxy Server User Account Select User Account Select Phone Number Select User Pwd Prestige 2000WV2 User’s Guide SIP Settings Phonebook Calling MethodsAdding a Phonebook Entry Phonebook Editing Phonebook Entries Select Add Entry Erasing Phonebook Entries Speed Dial Phonebook Entries Select Speed Dial Missed Calls Call HistoryCall History Received Calls Dialed Calls Erasing Calls Select Erase Calls Setting the Ring Melody Miscellaneous SettingsMiscellaneous Settings Adjusting the Ring Volume Setting the Vibration ModeSelect Ringer Volume Setting the Time Setting the DateSelect Edit Time Select Edit Date Setting the Banner Setting the Key LockSelect Settings in the first menu screen Press the Left key to save your setting Setting the Don’t Disturb Select Don’t Disturb Prestige 2000WV2 User’s Guide Miscellaneous Settings Information Menus Displaying InformationSelect MAC Address Information Menus 11Select Firmware Ver Using the Phonebook to Dial a Telephone Number Using Speed Dial to Dial a Telephone NumberPrestige Usage Dialing a Telephone Number Answering a Call Changing the VolumeRejecting a Call Using the Web Configurator Screens Introduction to the Web ConfiguratorLogin Using the Web Configurator Screens Navigating the Prestige Web Configurator Login Screen Web Configurator User Screens Summary SIPNAT Trvsl Phone Book Phone Web Configurator Administrator Screens SummaryTOS/DS User Web Configurator Screens User Web Configurator ScreensDevice Information IP Address Assignment IP Address and Subnet Mask MAC Address Network Configuration Static DNS Server Cancel Network Configuration DhcpApply Dhcp Network Configuration PPPoE PPPoE Network Configuration VoIP Introduction 12.9.1 SIPSIP Identities PPPoE SIP Call Progression SIP Client ServerSIP Call Progression Invite SIP Proxy Server SIP Configuration 12.9.1.4 RTP 12.11 NAT SIP Proxy NAT Example NAT Types Full Cone NAT Full Cone Restricted Cone Port Restricted Symmetric Restricted Cone NAT Full Cone NAT Example Port Restricted Cone NAT Symmetric NAT SIP ALG NAT and SIPFake WAN Address on SIP and RTP Stun NAT Traversal ConfigurationOutbound Proxy NAT Traversal Configuration ALG Phone Book Configuration Phone BookCalling Methods Stun Phonebook Delete Wireless Introduction Wireless SettingsWEP Encryption Prestige 2000WV2 User’s Guide Phonebook Ssid WEP System 12.19 S/W UpdateSubmit W Update Zip files before you can upload them Administrator Web Configurator Screens Administrator Web Configurator Screens SIP Proxy Configuration Type the SIP proxy server settings SIP Configuration SIP URI Voice Coding Prestige 2000WV2 User’s Guide IP Configuration13.3.1 G.711 Phone Setting Pstn Call Setup Signaling13.3.2 G.729 100 Administrator Web Configurator Screens Quality of Service Administrator Web Configurator Screens 101 13.8 ToS 102 Administrator Web Configurator ScreensIntroduction to DiffServ Problems Starting Up the Prestige TroubleshootingProblems Using the Keypad Troubleshooting Accessing the Prestige Problems Accessing the Prestige104 Troubleshooting Error Message Troubleshooting Restoring the Factory Default SettingsError Message Troubleshooting Troubleshooting 105 Prestige 2000WV2 User’s Guide 106 Troubleshooting Specification Tables Hardware SpecificationsAppendix a Product Specifications 107 MIC Prestige 2000WV2 User’s Guide Firmware Features 108 Appendix a Product SpecificationsHTTP, TFTP, TCP, UDP, DNS, ARP, Icmp Essid IP Addressing IP ClassesClasses of IP Addresses Appendix B IP Subnetting 109 Subnet Masks SubnettingAllowed IP Address Range By Class Natural Masks Example Two Subnets Alternative Subnet Mask NotationTwo Subnets Example Appendix B IP Subnetting 111 Subnet 112 Appendix B IP Subnetting Example Four Subnets Appendix B IP Subnetting 113 Example Eight Subnets Eight SubnetsClass C Subnet Planning 114 Appendix B IP Subnetting Class B Subnet Planning Subnetting With Class a and Class B NetworksAppendix B IP Subnetting 115 Prestige 2000WV2 User’s Guide 116 Appendix B IP Subnetting PPPoE in Action Benefits of PPPoETraditional Dial-up Scenario Appendix C PPPoE 117 How PPPoE Works Prestige as a PPPoE Client Ad-hoc Wireless LAN Configuration Wireless LAN TopologiesAppendix D Wireless LANs 119 Basic Service Set 120 Appendix D Wireless LANs Appendix D Wireless LANs 121 Infrastructure Wlan Prestige 2000WV2 User’s Guide 122 Appendix D Wireless LANs Index NumericsIndex 123 Dtmf 124 Index 711 22, 98 729 22, 99 Index 125 126 Index SIP ALG Index 127 Wlan