seminar on cisco router password recovery and network

8/7/2019 Seminar on CISCO Router Password Recovery and Network

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Seminar On CISCOSeminar On CISCORouterRouter

SubnettingSubnetting Using VLSMUsing VLSMand EIGRP Routingand EIGRP Routing



ContentsContents

What isWhat is SubnettingSubnetting..

Advantages of Advantages of SubnettingSubnetting..

Types Of Types Of SubnettingSubnetting.. How we perform VLSMHow we perform VLSM SubnettingSubnetting..

What is Routing.What is Routing.

DyamamicDyamamic routing using EIGRProuting using EIGRP EIGRP PracticalEIGRP Practical

Some security tipsSome security tips



What isWhat is SubnetingSubneting

SubnettingSubnetting is a process that divides theis a process that divides the

large , complex network into smaller parts.large , complex network into smaller parts.Each such part is known as subnet Each such part is known as subnet networknetwork



Advantages of Advantages of SubnettingSubnetting

Reduce network Traffic.Reduce network Traffic.

ForFor exmapleexmaple +91 0172 2181482+91 0172 2181482

net IDnet ID SubnettingSubnetting Host IDHost ID Easy to manage and troubleshoot.Easy to manage and troubleshoot.

Provide Security.Provide Security.

Reduce the wastage of Reduce the wastage of IPIP addresses.addresses.



Types of Types of SubnettingSubnetting

IPIP SubnettingSubnetting Zero.Zero.

VLSM (Variable Length Subnet Mask). VLSM (Variable Length Subnet Mask).

IPIP subnettingsubnetting Zero:Zero:-- SubnettingSubnetting is basedis based

upon network IDupon network ID

bits.Tobits.To perform thisperform thistype of type of subnettingsubnetting we need to borrowwe need to borrow fewfewbitsbits from host id .That depend uponfrom host id .That depend upon

number of networknumber of network



VLSM: VLSM:--

VLSM stands for variable length subnet VLSM stands for variable length subnet mask.mask.

This type of This type of subnettingsubnetting is more flexibleis more flexiblethan that of than that of subnettingsubnetting zero.zero.

Length of subnets is variable as weLength of subnets is variable as we

required.required.



Variable Length Subnet Masking Variable Length Subnet Masking(VLSM)(VLSM)

Consider a class Consider a class CC IP address : 200.10.15.x IP address : 200.10.15.x

Default (subnet) mask (SM): 255.255.255.0Default (subnet) mask (SM): 255.255.255.0

SM 255.255.255.192 /26SM 255.255.255.192 /26pp 2 subnets @ 62 hosts2 subnets @ 62 hosts

SM 255.255.255.224 /27SM 255.255.255.224 /27pp 6 subnets @ 30 hosts6 subnets @ 30 hosts

SM 255.255.255.240 /28SM 255.255.255.240 /28pp14 subnets @ 14 hosts14 subnets @ 14 hosts

SM 255.255.255.248 /29SM 255.255.255.248 /29pp30 subnets @ 6 hosts30 subnets @ 6 hostsSM 255.255.255.252 /30SM 255.255.255.252 /30pp62 subnets @ 2 hosts62 subnets @ 2 hosts



What is Routing..???What is Routing..???

Routing is process of identify the pathRouting is process of identify the path

from on network to another.from on network to another. Routing is of three typesRouting is of three types

Static routingStatic routing

Default routingDefault routing Dynamic routingDynamic routing



Dynamic routing using EIGRPDynamic routing using EIGRP

EIGRP is CISCOEIGRP is CISCO propritorypropritory protocol...protocol...

Hybrid routing protocol=Distance vector + linkHybrid routing protocol=Distance vector + linkstate.state.

Support VLSM/CIDR.Support VLSM/CIDR.

Hop count =100.Hop count =100.

Fast convergence.Fast convergence.



EIGRP PracticalEIGRP Practical

Router 1 configuration..Router 1 configuration..

Router>enableRouter>enable

Router#configRouter#config Router(Router(configconfig)#router)#router eigrpeigrp 11

Router(Router(configconfig--router)#router)#

Router(Router(configconfig--router)#network 192.168.10.0router)#network 192.168.10.0

Router(Router(configconfig--router)#network 192.168.10.88router)#network 192.168.10.88

Router#showRouter#show ipip routeroute



Router 2 configuration..Router 2 configuration..Same as router 1 but the networkSame as router 1 but the network

path ispath is changed.likechanged.like

Router(Router(configconfig--router)networkrouter)network192.168.10.89192.168.10.89

Same for another networkSame for another network



Few Security and Hacking TipsFew Security and Hacking Tips

Password RevelerPassword Reveler

PhisihingPhisihing

Key loggerKey logger Mail TracerMail Tracer

IP ScannerIP Scanner

Windows FirewallWindows Firewall



THE END THE END

THANK YOUu THANK YOUu

seminar on cisco router password recovery and network

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