CCNA

1. Cisco Network Support Certifications 2. Networking Terms 3. INTRODUCTION TO NETWORKING 4. TYPES OF NETWORK 5. The Development of the Internet 6. NETWORK ARCHITECTURE 7. TOPOLOGY 8. BUS TOPOLOGY 9. RING TOPOLOGY 10. STAR TOPOLOGY 11. MESH TOPOLOGY 12. HYBRID TOPOLOGY 13. Speed of Networking device 14. NETWORK DEVICES 15. Exploring Wireless Network 16. REPEATERS 17. HUB 18. SWITCH 19. BRIDGE 20. ROUTERS 21. TRANSMISSION Telecommunication 22. Difference between Full Duplex, Half Duplex and Simplex 23. IP-ADDRESSING and IPV4 24. IPv4 address classes 25. IPV6 [ Internet Protocol Version 6 ] 26. SPEED OF VARIOUS DEVICES 27. Network Security 28. Some basic suggestion and steps to prevent Attacks and Network security 29. OSI model 30. UPPER and LOWER Layer 31. Application Layer (Layer 7) 32. Presentation Layer (Layer 6) 33. Session Layer (Layer 5) 34. Transport Layer (Layer 4) 35. Network Layer (Layer 3) 36. Data Link Layer 2 37. Physical Layer 1 38. TCP/IP The DoD Model 39. ROUTED PROTOCOL 40. Ports and Application 41. Important Application, Protocol and Port Number 42. Router Function 43. Types of Routing Protocols 44. STARTING ROUTER 45. CISCO IOS 46. Logging in to the Router 47. CISCO Router IOS commands List 48. Setting time and date of router 49. Router configuration commands 50. Optimizing Switch and Router 51. Understanding Router Terms 52. ROUTER SECURITY 53. Configuring CISCO SWITCH Security Policy 54. IMPLEMENTING STATIC ROUTING 55. UNDERSTANDING THE NEED FOR NAT 56. WAN Connections 57. Access List [ACL] 58. VLAN [Virtual Local Area Network] 59. SPANNING TREE :- BROADCAST STORM 60. Lab 1 Setting up a Serial Interface 61. Lab 2 : IP Addressing 62. Lab 3 Static Routes 63. Lab 4 Default Routes 64. Lab 5 RIP Routes 65. Lab 6 IGRP Routes 66. Lab 7 EIGRP Routes 67. Lab 8 OSPF Routes 68. Lab 9 CHAP and RIP 69. Lab 10 Standard Access-Lists with RIP 70. Lab 11 Extended Access-Lists with RIP 71. Lab 12 Static NAT 72. Lab 13 Many to One NAT 73. Lab 14 NAT Pool 74. Lab 15 ( 2950 Trunk ) 75. Lab 16 ( 2950 Trunk Dynamic ) 76. Lab 17 (2950 VLANs) 77. Lab 18 ( 2950 Deleting VLANs ) 78. Lab 19 ( 2950 VTP ) 79. Lab 20 ( 2950 VTP w/ client ) 80. Lab 21 ( 2950 Telnet )
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Router Function tutorials

  • A router has 2 primary function:

1) To determine the best path to a destination

2) Share path information (the Route) with other routers.

  • A router determines the path data should take based on information saved on routing table. Routing table keeps track of the route to network and cost associated with those routes. Here routing table may be

a) Static :- maintain by administrator or

b) Dynamic :- automatically maintained

 

IP Routing

  • IP routing is the process of moving packets from one network to another network using routers. Here it takes help of Routing Protocol and Routed Protocol.

 

ROUTING PROTOCOL

  • Routing protocol uses a specific algorithm to route data across the network.

  • It is used by routers to dynamically find all networks and internetwork and to ensure that all routers have the same routing table.

  • Routing protocols determine the best path packets take to reach a destination in a network.

  • A routing protocol does this by defining rules to communicate with neighboring routing and then sending information about the routerís learned routes to neighboring routers.

  • Basically a routing protocol determines the path of packet through an internetwork.

 

CLASSLESS Routing

CLASSFUL Routing

Classless routing protocol include subnet mask information in routing advertisement and support VLSM (Variable Length Subnet Mask)

Classful routing protocols do not include the subnet mask in routing advertisement. As a result all subnetworks of the same mojor network must use the same subnet mask.

In classless routing summarization is controlled manually

Routers using classful protocols automatically perform route summarization across network

For e.g. RIP v2, OSPF, IS-IS, EIGRP

For e.g. RIP v1

Ip classless command prevents a router from dropping packets for an unknown subnetwork of directly attached network if a default route is configured.

ip classless command is enabled by default

 


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