Micon IP-220E manual Appendix B IP Address, Subnet and Gateway

Page 80

Appendix B: IP Address, Subnet and Gateway

Appendix B: IP Address, Subnet and Gateway

This section discusses Communities, Gateways, IP Addresses and Subnet masking

Communities

A community is a string of printable ASCII characters that identifies a user group with the same access privileges. For example, a common community name is “public.” For security purposes, the SNMP agent validates requests before responding. The agent can be configured so that only trap managers that are members of a community can send requests and receive responses from a particular community. This prevents unauthorized managers from viewing or changing the configuration of a device.

Gateways

Gateway, also referred to as a router, is any computer with two or more network adapters connecting to different physical networks. Gateways allow for transmission of IP packets among networks on an Internet.

IP Addresses

Every device on an Internet must be assigned a unique IP (Internet Protocol) address. An IP address is a 32-bit value comprised of a network ID and a host ID. The network ID identifies the logical network to which a particular device belongs. The host ID identifies the particular device within the logical network. IP addresses distinguish devices on an Internet from one another so that IP packets are properly transmitted.

IP addresses appear in dotted decimal (rather than in binary) notation. Dotted decimal notation divides the 32-bit value into four 8-bit groups, or octets, and separates each octet with a period. For example, 199.217.132.1 is an IP address in dotted decimal notation.

To accommodate networks of different sizes, the IP address has three divisions – Classes A for large, B for medium and C for small. The difference among the network classes is the number of octets reserved for the network ID and the number of octets reserved for the host ID.

Class	Value of First Octet	Network ID
A	1-126	First octet
B	128-191	First two octets
C	192-223	First tree octets

Host ID Last three octets Last two octets Last octet

Number of Hosts

16,387,064

64,516

254

Any value between 0 and 255 is valid as a host ID octet except for those values the InterNIC reserves for other purposes

Value	Purpose
0, 255	Subnet masking

127Loopback testing and interprocess communication on local devices 224-254 IGMP multicast and other special protocols.

79

Image 80

Contents IGuard Contents Page Features IntroductionPackage Contents IGuard IP-220E Hardware Light color Condition descriptionHardware Installation Installation Procedure StepInstalling iGuardware IGuardwareUsing iGuardware IGuard UtilitySetup Wizard IGuard Setup WizardIGuard Network Setup IGuard a/DSL Setup IGuard PPPoE Setup Launch iGuardManagerChapter.5 Click either one to Launch iGuard IP Configuration IGuard Web ManagerIP Configuration Set an IP Address for iGuard Device Password Reset Device PasswordUpgrade Firmware Ii. Management ProtocolIGuardware IGuardView IGuardView Screen ShotDevice Setting IGuardware Camera Setting Motion Detection Setting REDAvifilethree digit numerical sequence Email Address Email Notification SettingServer Authentication Snmp Setting Using Snmp to update network portsCamera Monitor IGuardware IGuardware View SystemHelp IGuard Web Manager IntroductionIGuard Web Manager Web-Camera Selection Ii. Network Status Information System StatusSystem Information Current Connections IGuard System StatusEvent Log IGuard Current ConnectionsBasic Settings Camera Settings Setting up Camera a Similar with Camera BIndividual Camera Configuration Network IP AddressIi. DNS Server IP Iii. Port NumberVi. PPPoE Iv. EthernetDynamic DNS Account Settings User Account User NameCamera Advanced Settings Event Notification IGuard Permit Hours ConfigurationEvent Notification Send Email IGuard Event NotificationIGuard Event Selection List IGuard Event Start Up Camera a or Camera B Enable Motion DetectionIGuard Motion Detection IGuard Motion Detect Email Notification Image Recording Camera a or Camera B Begin End hhmmMail / FTP IGuard Email of Image RecordedFTP Settings FTP Server Ii. Email Settings E-mail ServerIii. Sending Test Mail IGuard test mail functionSystem Time System SettingsIv. Email Address Book Ii. System Restart Iii. LED SettingsIv. Snmp Settings Snmp setting AboutIi. Save / Restore Settings Save current Configuration AboutDemilitarized Zone DMZ Appendix a Router ConfigurationDdns Port Forwarding BEFSR41 Appendix a Router Configuration Type in the camera’s IP address UDPDescription IGuard Camera Internet Port 9001 to Type TCP Appendix a Router Configuration Dell TrueMobile 2300 Wireless Broadband Router Appendix a Router Configuration Appendix a Router Configuration Appendix a Router Configuration Action Allow always Appendix a Router Configuration TCP Type in the camera’s IP address Appendix a Router Configuration TCP Appendix a Router Configuration Appendix B IP Address, Subnet and Gateway Subnetting and Subnet Masks Subnet Mask Routing and FilteringAppendix C Glossary Term DefinitionAppendix D Q&A Q2. Can I use other USB Camera to connect to iGuard?Q5. What is the effective length of the USB cable? If iGuard is connected to a Router or IP Share then Q13. There is no Port Forwarding Section in my Router Appendix D Glossary