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Basic Networking for DVR’s

Basic Networking for DVR’s. Instructor’s name : Everfocus Sales Rep. Index. Definition of a Network Network Types Network Devices TCPIP Protocol IP Addressing. What is a NETWORK ? A network is a group of different devices such as Computers Switches / Routers / Hubs

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Basic Networking for DVR’s

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  1. Basic Networking for DVR’s Instructor’s name : Everfocus Sales Rep

  2. Index • Definition of a Network • Network Types • Network Devices • TCPIP Protocol • IP Addressing

  3. What is a NETWORK? A network is a group of different devices such as Computers Switches / Routers / Hubs These devices can communicate directly with each other These devices are referred to as “Common Points” or NODES 2 types of Networks LAN: Local Area Network WAN: Wide Area Network Definition of a Network

  4. Local Area Network(LAN) A group of computers and others devices that share a common communications line or wireless link. Typically share the resources of a single processor or server within a small geographic area. Network Types:Local Area Network

  5. LAN Example #1

  6. LAN Example #2 Router 8 port Switch PC1 PC2 PC3 PC4 DVR Office Building

  7. LAN Example #3 PC3 Router Switch DVR1 POS 1 POS2 POS3 PC1 PC2 DVR2 Retail store

  8. Example of a Network

  9. Networks that span the distance between buildings, cities and even countries. WANs are LANs that are connected together using wide area Network services from telecommunications carriers or ISP. The Internet is an example of a WAN Wide Area Network Wide Area Network (WAN)

  10. Wide Area Network

  11. WAN / LAN EXAMPLE Public Network Router DVR Remote Location Modem Home Computer System ( LAN) Router Private Network Example of a Remote Video Access

  12. Common devices of a Network NETWORK DEVICES • Network Interface Card or NIC • Hubs and Switches • Routers • Modems • Network Wiring

  13. NIC is an acronym for NETWORK INTERFACE CARD Provides network communication capabilities to and from a personal computer. Also called a LAN (Local Area Network) Adaptor Connects to the motherboard and provides a port for connecting to the network Contains a MAC Address (Media Access Control address) This is the physical address of a device connected to a network Expressed as a 48-bit hexadecimal number Example: 00-10-DC-A1-BC-14 Network Interface Card ( NIC) Desktop PC Laptop

  14. Switch What is a SWITCH ? 8 port Switch • A common connection point for devices in a network. • Add functionality, optimize the LAN • A hub or switch can contain multiple ports. • The most common type of interface used is ETHERNET 16 port Switch

  15. Router What is a ROUTER? • A ROUTER is a device that forwards data packets along networks. • A ROUTER is connected to at least TWO Networks, such as: • Two LANs • Two WANs • A LAN and its ISP Network. • ROUTERS are located at gateways, the places where two or more networks connect. • ROUTERSkeep the networks connected to the Internet.

  16. A MODEM is a device that enables a computer or Network to transmit data over telephone or cable lines TYPES DIALUP: Usually used for low speed connection. Requires a dial up phone connection CABLE: A cable modem is a special type of modem that is designed to modulate a data signal over a cable television infrastructure. DSL / ADSL: A DSL modem is a special modem used for broadband connections on a regular telephone lines DSL ROUTER: This router is acombination of a DSL modem and a Router in the same box. This router allows you the advantage of saving money and time Modems What is a MODEM?

  17. Cable Modem Configurations RG59U cable ISP RG59U cable ISP Example # 1. Without a Router Example # 2 With a Router PC Router/Switch DVR DVR

  18. Cable Modem Examples RG59U cable ISP RG59U cable ISP Example # 2 Without a Router Example # 1. Without a Router Multiple Dynamic IP address from the ISP. ( DHCP). Single Static or Dynamic IP address from the ISP. WAN IP address 64.45.20.7 PC Switch WAN IP address 64.45.20.6 DVR DVR Note: Both Network devices must be on DHCP mode.

  19. DSL Modem Examples Example # 1 DSL Modem/Router Example # 2 DSL Modem ( Plain) DSL modem must be on Bridge Mode PC Router/Switch DVR DVR

  20. Network Wiring Physical connections IBM Token Ring • Are vital to proper communication of the different network devices on the LAN. • Allows Network components to communicate and transport communication signals with data across the network. • Depending of the network components is important to determine and use the proper type of cable 10Base2 Thin Ethernet Coaxial BNC 10/100Base-T Twisted pair CAT 5 . Ethernet

  21. UTP CONFIGURATIONS 10/100Base-T Twisted pair A crossover is used to connect two Ethernet devices without a hub or for connecting two hubs A straight-thru is used as a patch cord in Ethernet connections

  22. Cable Distances

  23. TCP/IP is and acronym for (Transmission Control Protocol / Internet Protocol) The basic communication language or protocol of the Internet. It is been used as a communications protocol in a private network (either an intranet or an extranet). TCP/IP Protocol What is a TCP/IP?

  24. TCP/IP Protocol The function of the TCP/IP protocol stack is the transfer of information from one network device to another. Host Host Internet TCP/IP

  25. TCP IP Protocol • A Protocol Graphillustrates some of the common protocols that are specified by the TCP/IP reference model. • These applications include the following: • FTP: File Transport Protocol • HTTP: Hypertext Transfer Protocol • SMTP: Simple Mail Transport protocol • DNS: Domain Name Service • TFTP: Trivial File Transport Protocol

  26. Video Presentation Warriors of the Net .

  27. An identifier for a computer or device on a TCP/IP network. Explicit IP addresses are given to nodes that uniquely identify the particular network the system is on. An IP address identify the system to a particular network IP Addressing What is an IP ADDRESS?

  28. Registered IP addresses. Used and assigned to a host on the Internet ( WAN). Are registered and legal to use in a Public Network. ( WAN) Private IP addresses Are not registered legal IP address. Can be used only in private networks. ( LAN) IP Addressing IP Addresses Types Public IP addresses are regulated by American Registry for Internet Numbers. ARIN. ( www.arin.net)

  29. IP Addressing 32 bits DottedDecimal Network Host 255 255 255 255 Maximum 17 1 8 9 16 24 25 32 11111111 11111111 11111111 11111111 Binary 1286432168421 1286432168421 1286432168421 1286432168421 172 16 122 204 ExampleDecimal 10101100 00010000 01111010 11001100

  30. Decimal Equivalents of Bit Patterns 128 64 32 16 8 4 2 1 0 0 0 0 0 0 0 0 = 0 1 0 0 0 0 0 0 0 = 128 1 1 0 0 0 0 0 0 = 192 1 1 1 0 0 0 0 0 = 224 1 1 1 1 0 0 0 0 = 240 1 1 1 1 1 0 0 0 = 248 1 1 1 1 1 1 0 0 = 252 1 1 1 1 1 1 1 0 = 254 1 1 1 1 1 1 1 1 = 255

  31. IP Address Classes 1 8 9 16 17 24 25 32 Bits: 0NNNNNNN Host Host Host Class A: Range (1-126) 1 8 9 16 17 24 25 32 Bits: 10NNNNNN Network Host Host Class B: Range (128-191) 1 8 9 16 17 24 25 32 Bits: 110NNNNN Network Network Host Class C: Range (192-223) 1 8 9 16 17 24 25 32 Bits: 1110MMMM Multicast Group Multicast Group Multicast Group Class D: Range (224-239)

  32. Class A IP Address 1 8 9 16 17 24 25 32 Bits: 0NNNNNNN Host Host Host Class A: Range (1-126) 1 8 9 16 17 24 25 32 • 10. 1. 100. 5 • 124. 45. 125. 10 Examples Network Host Network Host 24 N Available host :2 -2 = 2 - 2 = 16,777,214

  33. Class B IP Address 1 8 9 16 17 24 25 32 Bits: 10NNNNNN Network Host Host Class B: Range (128-191) 1 8 9 16 17 24 25 32 • 132.10. 88. 51 • 182.32. 1. 102 Examples Network Host Network Host N 16 Available host :2 -2 = 2 - 2 = 65534

  34. Class C IP Address 1 8 9 16 17 24 25 32 Bits: 110NNNNN Network Network Host Class C: Range (192-223) • 192.168. 0. 5 • 220.15. 0. 109 Examples Network Host Network Host N 8 Available host :2 -2 = 2 - 2 =254

  35. Host Addresses Network Class B Network Class A 172.16.2.2 10.1.7.5 10.1.7.1 E1 E0 172.16.3.10 10.1.8.11 172.16.2.1 172.16.12.12 10.1.30.118 172.16 . 12 . 12 10. 1. 30 . 118 Network Host Network Host

  36. Valid IP Addresses IP Address Examples 192.168.1.100 Class C 24.45.78.125 Class A 168.26.41.40 Class B 10.1.1.15 Class A 69.45.90.90 Class B • Non Valid IP Addresses 255.255.255.255 169.255.255.255 127.0.0.0

  37. QUESTIONS?

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