cisco (nai) system

Network Associate Integration System

By :- Sachin S. AjmireM.C.A 2nd yearP.R.Patil College of Management & Technology.

Guided By:- Prof. Sachin Joshi

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About NAI System

• Network• Network types• Logical Address

IPV4 (32-bit)IPV6 (128-bit)

• Physical AddressMAC (Media Access Control Address)

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Network Classes

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Networking

• Network ID: It is to identify host of the same network or domain. All the host portion are zero.Ex.: 10.0.0.0, 150.50.0.0, 200.200.200.0

• Broadcast ID: It is used to broadcast msg to the host of the same network or domain. All the host portion are 255.Ex.: 10.255.255.255, 120.20.255.255, 200.0.0.255

• Loop back IP: It is self testing IP address.Ex.: 127.0.0.1

• Sub netting• Super netting

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Network Devices

• Hub: Can not break broadcast &

collision domain.

• Switches: Store MAC address, easily

broadcast & unicast the msg.

• Routers: Active device, can break

broadcast & collision domain. Join two diff. network.

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ROUTER

Console PortEthernet PortSerial PortAuxiliary Port

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Internal Components of Router

IOS (Internetwork Operating System)POST(Power on self Test)BootstrapNVRAM(Non-Volatile RAM)RAMFlash MemoryConfiguration RegisterDCE (Data Communication Equipment)DTE (Data Terminal Equipment)

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Booting Process of Router

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Router Modes

User Mode: Provides basic access to the IOS with limited command availability (basically simple monitoring and troubleshooting commands)

Enable/ Privilege Mode: Provides high-level management access to the IOS, including all commands available at User EXEC mode

Configuration Mode: Allows configuration changes to be made to the device

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Router Modes Command

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Router Modes Command

Router> en (enable)Router# configuration terminalsRouter(config)#interface fast Ethernet 0/0Router(config_if)# IP address 10.0.0.1 255.0.0.0Router(config_if)#no shutdownRouter(config_if)#exit

Router(config)#interface serial 0/0Router(config_if)# IP address 50.0.0.1 255.0.0.0Router(config_if)#no shutdownRouter(config_if)#exit

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Routing

Static Routing: We have to configure route

manually. Dynamic Routing: In this routing roots are

configure with the help of protocols. Like DS, RIP(Routing Info Protocol), IRGP(Interior Gateway Routing Protocol), Link state, OSPF, Hybrid, BGP(Border Gateway Protocol).

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Telnet

It is used to access router from one location to another location.

AMI NGPAMI(config)# line vty 0 15AMI(config)# password sac@123AMI(config)#login

NGP(config)# Telnet 20.0.0.1NGP(config)# give telnet passwordNGP(config)# enable password modeNGP(config)# AMI router

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Access List

Standard: It contain 1-99 nos.,it used to block all services.

Ex.: (config)# access-list1 permit anyExtended: It contain 100-199 nos.,it used to

block one specific service.Ex.: (config)# deny 200.0.0.1 200.0.0.10

(block 10 computer IP address)

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Troubleshooting Commands

(config)#debug IP RIP

(config)# trace route dest IP address

(config)# traced

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Thank You