diploma ppt new.pptx

8/14/2019 DIPLOMA PPT NEW.pptx

1/28


2/28

Architecture for MANETs.

deny-by-defaultprinciple.

Enforcement policy is done hop-by-hop,

in distributed manner


3/28

Overcomes the bottlenecks of the original architecture

and propose improvements.

Incurs minimal overhead in throughput, latency and jitter

for achieving good performance than the existing system.

Protects network bandwidth.

Multi-hop topologies


4/28

Using third party software ( Antivirus , Firewall ..,) for detect and blockunwanted packet.

Hackers easy to hack user pc.

Antivirus does not identify a new protocol user, who updates anapplication in every virus.

Draw Backs

Time-consumingComplaints delay

Tedious and Complex

Slow updating and retrieval of information


5/28

Time consumed is reduced.

On-the-fly content viewing.

Parse and decode an variety of network protocol.

Protocol definition tool.

Port Scanner utility.

Invalid Packet Filtering


6/28

Sniffer UI Module

Sniffer Module

Port Scanner Module


7/28

Start

A pair of filters

Start

Filtering ?

Yes

Yes

No

NoWait

indefinitely Allow

Packets ?

Deny packets Allow packets

StopStop

Stop

Flow Chart

Creates user interface.

Checks validity of

sniffed packets.

Keeps a count of all thepackets.

Checks for connection.

Pings devices.

Traces the routes

between nodes.


8/28


9/28


10/28


11/28


12/28


13/28


14/28


15/28


16/28

Stop

Stop

STSSSSSStream of

packets

Start

Yes NoStart

Sniffing ?

Wait

indefinitely

Sniff all the

packets

Stop Stop

Flow Chart

Filtering of packets.

Allows the administrator to

ALLOW or DENY a

packet.

Addition or removal of

new/odd protocols.

Create sockets.

Parses IPv4 datagram.


17/28

SNIFFER TOOL- SNIFFING THE INVALID PACKETS


18/28

1) Flow of packets 2) Flow of invalid packets 3) Administrator blocks

flow of packets

4) Run the sniffer tool

5) Invalid packets blocked


19/28


20/28

STSSSSS

STSSSSSSTSSSSSDisplay ports

not listening

Display ports

listening

Start

Range of ports

Port

Busy ?

Stop Stop

YesNo

FlowChart

Port scanner is a software

application.

Used by administrators to

verify security policies.

Identify attackers trying to

run illegal services.


21/28

PORT SCANNER- SCANNING OF PORTS


22/28

1) Range of ports

2) Check for busy

ports

3) Busy and free

ports list

4) Use of free

ports


23/28


24/28


25/28

Unit Testing

Integration Testing

Validation Testing

Verification Testing

Test Cases


26/28

Works well at the network layer.

Incurs minimal overhead in throughput, latency and jitter.

Protects network bandwidth and the end hosts in the presence of attackers.

Creating multi-hop topologies.

Achievement of better performance

Faster data transfer rate.

Provides efficient user interface.


27/28

Can update to all Network protocols.

Can Enhance for Mobile Networks.

Update for other type of network like Fiber Optics...

Can Enhance to all network related information.


28/28

diploma ppt new.pptx

Documents