Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Computer Network & Security Expert

Problem 1:

Recently Voice over IP (VoIP) is experiencing an exceptional growth. Being a real-time service, VoIP is more susceptible to attacks. Furthermore, VoIP uses multiple protocols for call control and data delivery, making it vulnerable to different attacks at different protocol layers. An attacker can without difficulty disrupt VoIP services by flooding TCP SYN packets, UDP-based RTP packets, or SIP-based INVITE messages, which pose a critical threat to IP telephony.

Attack to an IP telephony network is not new concept. However, the manifestation of attacks, their targets, and how they are implemented has evolved over the past decade. To date, most Internet originated attacks have targeted the transport and network layers of the TCP/IP protocol stack. Typically, the goal of these attacks is either to overwhelm a specific machine or to saturate the communication link. But, as the Internet evolves and enterprises deploy multiple connections to the Internet, attacking the infrastructure has become less critical. Certain attacks are being targeted at particular services that consumers demand and rely upon, e.g., e-mail and web. This trend will continue as new complex services are deployed and gain widespread adoption. IP telephony is one such complex service that is gaining rapid momentum and has the potential for becoming a strategic new technology in coming decades. In turn, it is a prime target for new forms of attacks.  In order to support IP telephony in enterprise network, new network elements must be deployed and existing network elements must be modified. To support calls between endpoints connected to the IP network, referred to as Net-to-Net calls, SIP (Session Initiation Protocol) Proxy and Registrar/Location Server (RLS) must be deployed. To support call between endpoints in Public Switched Telephone Network (PSTN) and endpoints connected to the IP network, referred to Net-to-PSTN and PSTN-to-Net calls, it is necessary to deploy a Media or Signal Gateway (MSG) that can act as an application level proxy between the IP network and the PSTN. Besides these new network elements, supporting IP telephony requires modifications in enterprise firewall to allow dynamic protocol ports to be opened at the clients to send and receive audio and/or signalling and control messages.

problem1. The case study says that different attacks are possible on an IP telephony network. describe in detail the famous attacks on an IP telephony network.

problem2. From the case study we can deduce that there is a need to have vulnerabilities for a hacker to break in the system. Hence, what are the dissimilar significant steps which require to be followed to mitigate the vulnerabilities associated in VoIP network?

problem3. When a hacker performs a DoS attack on IP telephony network, the two major protocols that he may use are namely:

i. ICMP

ii. TCP/SYN

describe how the hacker would use the above protocols to perform his attack.

Computer Network & Security, Computer Science

  • Category:- Computer Network & Security
  • Reference No.:- M96283

Have any Question? 


Related Questions in Computer Network & Security

Networking trendsnetworking trends paper in this paper you

Networking trends. Networking Trends Paper: In this paper, you will research and report on network design and management trends over the last three years (present year minus 2) in the areas of virtualization, security, h ...

Assignment1 as a new security manager for a retail

Assignment 1. As a new security manager for a retail operation, you have been asked to create a new loss prevention and risk management program that will be presented to upper management. Create a 10- to 12-slide Microso ...

Short answer1 classify each of the following

Short Answer 1. Classify each of the following occurrences as an incident or disaster. If an occurrence is a disaster, determine whether business continuity plans would be called intoplay. a. A hacker breaks into the com ...

Assignmentthis assignment requires you to use presentation

Assignment This assignment requires you to use presentation tools and allows you to be creative. The presentation subject is to be network security on the Boeing 787 Dreamliner. To begin, get familiar with the topic by r ...

Short papercompare and contrast cat 6 unshielded twisted

Short Paper Compare and contrast cat. 6 unshielded twisted pair (UTP), coaxial, and single mode fiber optic cabling types. Describe one or two of the advantages and/or disadvantages associated with using each cable type ...

1 assume a system with two processors in series where each

1. Assume a system with two processors in series where each processor has an unlimited queue in front of it; also assume FIFO queue disciplines for both servers. We need to collect data on individual entity total time in ...

What special function does a cache server perform why does

What special function does a cache server perform? Why does this function have value for larger organizations? How does screened-host firewall architecture differ from screened-subnet firewall architecture? Which offers ...

Introduction to information systems securityphysical

Introduction to Information Systems Security Physical Security Paper Research the following topic: Physical Security • What types of physical controls can be implemented to protect the perimeter of a building? • What typ ...

You work the night shift at a software development company

You work the night shift at a software development company and mange six Web servers that host the company's e commerce solution for medical and dental supplies. You notice that traffic across the network dropped signifi ...

I have one question and need a response to the other

I have one question and need a response to the other part.  The question needs to be at least two paragraphs with in text references and the other response need to be at least one paragraph and no references. Part 1 - Q1 ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen