Содержание
- 2. Addressing the Network: IPv4 IPv4 Addresses
- 3. Anatomy of an IPv4 Address Each device on a network must be uniquely identified at the
- 4. Anatomy of an IPv4 Address Devices use binary logic and work with strings of binary numbers.
- 5. Anatomy of an IPv4 Address To identify a path or "route" through a network, the address
- 6. Anatomy of an IPv4 Address Network Portion: Some portion of the high-order bits represents the network
- 7. Anatomy of an IPv4 Address Host Portion: There are a variable number of bits that are
- 8. Binary to Decimal Conversion In all number systems, the digits start with 0. A Base-n number
- 9. Binary to Decimal Conversion Positional Notation (Decimal Number System): Means that a digit represents different values
- 10. Binary to Decimal Conversion Computers react only to electrical impulses. They work with and store data
- 11. Binary to Decimal Conversion Positional Notation (Binary Number System): Means that a digit represents different values
- 12. Binary to Decimal Conversion
- 13. Binary to Decimal Conversion IP Address: 11001001000100010001110100000100 11001001 00010001 00000100 00011101 201 17 29 4 IP
- 14. Binary to Decimal Conversion
- 15. Decimal to Binary Conversion IP Address: 201.17.29.4 201 1 0 0 1 1
- 16. Decimal to Binary Conversion IP Address: 201.17.29.4 17
- 17. Decimal to Binary Conversion IP Address: 201.17.29.4 29 1 1
- 18. Decimal to Binary Conversion IP Address: 201.17.29.4 4 Binary String: 110001001000100010001110100000100
- 19. Decimal to Binary Conversion
- 20. Addressing the Network: IPv4 IPv4 Addresses for Different Purposes
- 21. Types of Addresses in an IPv4 Network Range Three types: Network and Broadcast addresses CANNOT be
- 22. Network Address Standard way to reference a network (Lowest Address). All hosts in the network will
- 23. Broadcast Address The destination address of a single packet used to communicate to all hosts in
- 24. Host Address The unique address assigned to each device on the network. Assign any address between
- 25. Types of Communication in an IPv4 Network Three types: In all three types, the address of
- 26. Unicast Communications The process of sending a packet from one host to an individual host.
- 27. Special Unicast Addresses Default Route: Address - 0.0.0.0 Subnet Mask – 0.0.0.0 When configured, it tells
- 28. Special Unicast Addresses Loopback: Address - 127.0.0.1 Host applications use it to communicate with each other.
- 29. Special Unicast Addresses Link Local Addresses: Address Range 169.254.0.0 to 169.254.255.255 Can be automatically assigned by
- 30. Special Unicast Addresses Test-Net Addresses: Address Range 192.0.2.0 to 192.0.2.255 Used for teaching and learning purposes.
- 31. Special Unicast Addresses Experimental Address Range: Address Range 240.0.0.0 to 255.255.255.254 Reserved for future use. Cannot
- 32. Special Unicast Addresses Public and Private Addresses: Most IPv4 addresses are public addresses. A public address
- 33. Broadcast Communications The process of sending a packet from one host to all hosts in the
- 34. Broadcast Communications Broadcasts are not forwarded by a router unless specifically configured to do so. The
- 35. Multicast Communications The process of sending a packet from one host to a selected group of
- 36. Multicast Communications Multicasting involves the use of a reserved network of IP Addresses (224.0.0.0). Each host
- 37. Multicast Communications The reserved multicast network or specific multicast addresses will be displayed in the routing
- 38. Reserved and Special Purpose Addresses
- 39. Addressing the Network: IPv4 IANA and ISPs
- 40. Internet Assigned Numbers Authority (IANA) To have hosts accessible from the Internet, an organization must have
- 41. Internet Service Provider (ISP) Most companies or organizations obtain their IPv4 address blocks from an ISP.
- 42. Internet Service Provider (ISP) ISPs are designated by a hierarchy based on their level of connectivity
- 43. Addressing the Network: IPv4 Assigning Addresses
- 44. Planning to Address the Network Planning and documentation is an important part of IP Address assignment.
- 45. Assigning Addresses Within a Network The IP Addresses for hosts on a common network segment must
- 46. Assigning Addresses Within a Network Considerations – Private and Public addresses. Will there be more devices
- 47. Assigning Addresses Within a Network
- 48. Assigning Addresses Within a Network
- 49. Assigning Addresses Within a Network
- 50. Static or Dynamic Addressing Static Address Assignment
- 51. Static or Dynamic Addressing Dynamic Address Assignment - DHCP
- 52. Selecting Device Addresses
- 53. Addressing the Network: IPv4 IPv4 Addresses Prefix and Subnet Mask
- 54. Network Prefixes How do you know the number of bits assigned to the network and the
- 55. Network Prefixes Networks are not always assigned a /24 prefix. Depending on the number of hosts
- 56. Subnet Mask How do the network devices know how many bits are the network portion and
- 57. Subnet Mask There is a direct, one-to-one relationship between the bits of the IP Address and
- 58. Subnet Mask
- 59. Subnet Mask IP Address: 10.24.36.2 / 8 Subnet Mask? IP Address: 10.24.36.2 / 12 Subnet Mask?
- 60. Is the Host on My Network? To send a broadcast, a network device must be able
- 61. Is the Host on My Network? IP Address 135.15.2.1 255.255.0.0
- 62. Reasons to Use AND Routers use the ANDing process to determine the route a packet will
- 63. Reasons to Use AND The source device uses the ANDing process to determine if the packet
- 64. Addressing the Network: IPv4 Testing the Network Layer
- 65. Testing the Network Layer
- 66. Testing the Network Layer
- 67. Testing the Network Layer C:>ping 10.0.1.2
- 68. Testing the Network Layer
- 69. Testing the Network Layer ICMPv4: Protocol for Testing and Messaging. Provides control and error messages and
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