Transport and Network Layer

Size: px
Start display at page:

Download "Transport and Network Layer"

Transcription

1 Transport and Network Layer 1 Introduction Responsible for moving messages from end-to-end in a network Closely tied together TCP/IP: most commonly used protocol o Used in Internet o Compatible with a variety of Application Layer protocols as well as with many Data Link Layer protocols 2 - Transport & Network Layer Protocols Transport end-to-end delivery of messages o Sets up virtual circuits (when needed) segmentation and reassembly o Breaking the message into several smaller pieces at the sending end o Reconstructing the original message into a single whole at the receiving end Interacts with Application Layer Network addressing and routing of messages o Selects the best path from computer to computer until the message reaches destination Performs encapsulation on sending end o Adds network layer header to message segments Performs decapsulation on receiving end o Removes the network layer header at receiving end and passes them up to the transport layer

2 Transmission Control Protocol - TCP Links the application layer to the network layer Performs packetization and reassembly o Breaks up a large message into smaller packets o Numbers the packets o Reassembles the packets at the destination end Ensures reliable delivery of packets Internet Protocol addressing and routing of packets o Two versions in current in use IPv4: a 192 bit (24 byte) header, uses 32 bit addresses. IPv6: Mainly developed to increase IP address space due to the huge growth in Internet usage (128 bit addresses) o Both versions have a variable length data field Max size depends on the data link layer protocol. e.g., Ethernet s max message size is 1,492 bytes, so max size of TCP message field: = 1444 bytes

3 TCP/IP 3 Transport Layer Functions Linking to the Application Layer TCP may serve several Application Layer protocols at the same time o Problem: Which application layer program to send a message to? o Solution: Port numbers located in TCP header fields; 2-byte each (source, destination) Standard port numbers o Usual practice numbers: 80 for HTTP, 25 for SMTP, 21 for FTP Nonstandard port numbers o Possible, but requires configuration of TCP o Can be used to enhance security from commonly known ports Segmenting

4 Session management Connection Oriented is provided by TCP o Setting up a virtual circuit, or a TCP connection o TCP asks IP to route all packets in a message by using the same path (from source to destination) o Packet deliveries are acknowledged o Used by HTTP, SMTP, FTP Connectionless Routing is provided by UDP Sending packets individually without a virtual circuit

5 o Each packet is sent independently of one another, and will be routed separately, following different routes and arriving at different times QoS Routing (provided by RTP) A special kind connection oriented routing with priorities More about User Diagram Protocol Protocol used for connectionless routing in TCP/IP suite that uses no acks, no flow control Uses only a small packet header o Only 8 bytes containing only 4 fields: Source port Destination port Message length Header checksum Commonly used for control messages that are usually small, such as DNS, DHCP, RIP and SNMP. Can also be used for applications where a packet can be lost, such as information rich video More about Q of S QoS defines and assigns priorities to classes of service Timeliness - timely delivery of packets o Packets be delivered within a certain period of time (to produce a smooth, continuous output o Required by some applications, especially real time applications (e.g., voice and video frames) o ( doesn t require this) QoS routing o Defines classes of service, each with a different priority: Real-time applications such as VoIP- highest A graphical file for a Web page - a lower priority - lowest (can wait a long time before delivery) Asynchronous Transfer Mode (ATM) o A high-speed data link layer protocol TCP/IP protocol suite o Resource Reservation Protocol (RSVP) Sets up virtual circuits for general purpose real-time applications o Real-Time Streaming Protocol (RTSP) Sets up virtual circuits for audio-video applications o Real-Time Transport Protocol (RTP) Used after a virtual connection setup by RSVP or RTSP Adds a sequence number and a timestamp for helping applications to synchronize delivery Uses UDP (because of its small header) as transport

6 4 Addressing Addressing o Each device on the path between source and destination must have an address o Internet Addresses o Assignment of addresses o Translation between network layer addresses and other addresses (address resolution) About assignment of address Application Layer address (URL) o For servers only (clients don t need it) o Assigned by network managers and placed in configuration files. o Some servers may have several application layer addresses Network Layer Address (IP address) o Assigned by network managers, or by programs such as DHCP, and placed in configuration files o Every network on the Internet is assigned a range of possible IP addresses for use on its network Data Link Layer Address (MAC address) o Unique hardware addresses placed on network interface cards by their manufacturers ( based on a standardized scheme) Servers have permanent IP addresses, clients usually do not

7 Internet addresses and domain names IPv 4 32 bits Dotted Decimal Notation IPv6 128 bits 3.2 x address Subnets

8 Subnet mask To separate the subnet part of the address from the host part Dynamic Addressing Give out IP address for client computers on network Bootstrap Protocol (bootp) Dynamic Host Control Protocol (DHCP) Different approaches, but same basic operations: o A program residing in a client establishes connection to bootp or DHCP server o A client broadcasts a message requesting an IP address (when it is turned on and connected) o Server (maintaining IP address pool) responds with a message containing IP address (and its subnet mask) o IP addresses can also be assigned with a time limit (leased IP addresses) o When expires, client must send a new request Domain Name Service Used to determine IP address for a given URL Provided through a group of name servers o Databases containing directories of domain names and their corresponding IP addresses Large organizations maintain their own name servers o smaller organizations rely on name servers provided by their ISPs When a domain name is registered, IP address of the DNS server must be provided to registrar for all URLs in this domain o Example: Domain name: indiana.edu

9 o URLs: abc.indiana.edu How DNS workd Each client has an address table Use DNS server to resolve the address Mac Address Resolution Find MAC address of a host of a specific IP address ARP Broadcast an ARP message to all nodes on a LAN asking which node has a certain IP address Host with that IP address then responds by sending back its MAC address Store this MAC address in its address table Send the message to the destination node Example of a MAC address: 00-0C-00-F5-03-5A 5 Routing Process of identifying what path to have a packet take through a network from sender to receiver Routing Tables o Used to make routing decisions o Shows which path to send packets on to reach a given destination o Kept by computers making routing decisions Routers o Special purpose devices used to handle routing decisions on the Internet o Maintain their own routing tables

10 Type of Routing Centralized versus Decentralized Centralized routing

11 o o Decisions made by one central computer Used on small, mainframe-based networks Decentralized routing o Decisions made by each node independently of one another o Information needs to be exchanged to prepare routing tables o Used by the Internet More about decentralized routing Static routing versus dynamic routing Static routing o Fixed routing table created by network manager o Table changes when computers added or removed Dynamic Routing o Routing tables are updated dynamically o Routers exchange information for routers to update routing tables More about dynamic routing algorithms Distance vector versus link state Distance vector o Uses the least number of hops to decide the best route o RIP and RIP-2 Link state o Use a combination of information types to decide the best route: number of hops, congestion, speed of link o Nodes exchanged link state info periodically to keep the network up to date o More reliable Routing Protocols Rules to exchange info among routers, so that each can build and maintain routing tables RIP Interior routing protocols versus exterior protocols Exterior routing protocols operate between autonomous systems (networks of different companies) Interior routing protocols operate within an autonomous system; RIP, OSPF, EIGRP, ICMP

12 OSPF Other interior routing protocols Exterior routing protocol

13

14 For a computer to work in TCP/IP network Required Network layer addressing information o Computer s own IP address o Its subnet mask To determine what addresses are part of its subnet o Local DNS server s IP address To translate URLs into IP addresses o IP address of the router (gateway) on its subnet To route messages going outside of its subnet Address information is obtained from a configuration file or provided by a DHCP server Servers also need to know their own application layer addresses (domain names) 6 - TCP/IP Example About Router

15 Case 1a:

16

17

18 7 Implications for Management Most organizations moving toward a single standard based on TCP/IP o Decreased cost of buying and maintaining network equipment o Decreased cost of training networking staff Telephone companies with non-tcp/ip networks are also moving toward TCP/IP o Significant financial implications for telcos o Significant financial implications for networking equipment manufacturers

Course Overview: Learn the essential skills needed to set up, configure, support, and troubleshoot your TCP/IP-based network.

Course Overview: Learn the essential skills needed to set up, configure, support, and troubleshoot your TCP/IP-based network. Course Name: TCP/IP Networking Course Overview: Learn the essential skills needed to set up, configure, support, and troubleshoot your TCP/IP-based network. TCP/IP is the globally accepted group of protocols

More information

Network layer" 1DT066! Distributed Information Systems!! Chapter 4" Network Layer!! goals: "

Network layer 1DT066! Distributed Information Systems!! Chapter 4 Network Layer!! goals: 1DT066! Distributed Information Systems!! Chapter 4" Network Layer!! Network layer" goals: "! understand principles behind layer services:" " layer service models" " forwarding versus routing" " how a

More information

The Internet. Internet Technologies and Applications

The Internet. Internet Technologies and Applications The Internet Internet Technologies and Applications Aim and Contents Aim: Review the main concepts and technologies used in the Internet Describe the real structure of the Internet today Contents: Internetworking

More information

1 Data information is sent onto the network cable using which of the following? A Communication protocol B Data packet

1 Data information is sent onto the network cable using which of the following? A Communication protocol B Data packet Review questions 1 Data information is sent onto the network cable using which of the following? A Communication protocol B Data packet C Media access method D Packages 2 To which TCP/IP architecture layer

More information

8.2 The Internet Protocol

8.2 The Internet Protocol TCP/IP Protocol Suite HTTP SMTP DNS RTP Distributed applications Reliable stream service TCP UDP User datagram service Best-effort connectionless packet transfer Network Interface 1 IP Network Interface

More information

Networking Test 4 Study Guide

Networking Test 4 Study Guide Networking Test 4 Study Guide True/False Indicate whether the statement is true or false. 1. IPX/SPX is considered the protocol suite of the Internet, and it is the most widely used protocol suite in LANs.

More information

IP address format: Dotted decimal notation: 10000000 00001011 00000011 00011111 128.11.3.31

IP address format: Dotted decimal notation: 10000000 00001011 00000011 00011111 128.11.3.31 IP address format: 7 24 Class A 0 Network ID Host ID 14 16 Class B 1 0 Network ID Host ID 21 8 Class C 1 1 0 Network ID Host ID 28 Class D 1 1 1 0 Multicast Address Dotted decimal notation: 10000000 00001011

More information

Basic Networking Concepts. 1. Introduction 2. Protocols 3. Protocol Layers 4. Network Interconnection/Internet

Basic Networking Concepts. 1. Introduction 2. Protocols 3. Protocol Layers 4. Network Interconnection/Internet Basic Networking Concepts 1. Introduction 2. Protocols 3. Protocol Layers 4. Network Interconnection/Internet 1 1. Introduction -A network can be defined as a group of computers and other devices connected

More information

Chapter 4 Network Layer

Chapter 4 Network Layer Chapter 4 Network Layer A note on the use of these ppt slides: We re making these slides freely available to all (faculty, students, readers). They re in PowerPoint form so you can add, modify, and delete

More information

TCP/IP Fundamentals. OSI Seven Layer Model & Seminar Outline

TCP/IP Fundamentals. OSI Seven Layer Model & Seminar Outline OSI Seven Layer Model & Seminar Outline TCP/IP Fundamentals This seminar will present TCP/IP communications starting from Layer 2 up to Layer 4 (TCP/IP applications cover Layers 5-7) IP Addresses Data

More information

Ethernet. Ethernet. Network Devices

Ethernet. Ethernet. Network Devices Ethernet Babak Kia Adjunct Professor Boston University College of Engineering ENG SC757 - Advanced Microprocessor Design Ethernet Ethernet is a term used to refer to a diverse set of frame based networking

More information

IP Networking. Overview. Networks Impact Daily Life. IP Networking - Part 1. How Networks Impact Daily Life. How Networks Impact Daily Life

IP Networking. Overview. Networks Impact Daily Life. IP Networking - Part 1. How Networks Impact Daily Life. How Networks Impact Daily Life Overview Dipl.-Ing. Peter Schrotter Institute of Communication Networks and Satellite Communications Graz University of Technology, Austria Fundamentals of Communicating over the Network Application Layer

More information

Internet Control Protocols Reading: Chapter 3

Internet Control Protocols Reading: Chapter 3 Internet Control Protocols Reading: Chapter 3 ARP - RFC 826, STD 37 DHCP - RFC 2131 ICMP - RFC 0792, STD 05 1 Goals of Today s Lecture Bootstrapping an end host Learning its own configuration parameters

More information

Technical Support Information Belkin internal use only

Technical Support Information Belkin internal use only The fundamentals of TCP/IP networking TCP/IP (Transmission Control Protocol / Internet Protocols) is a set of networking protocols that is used for communication on the Internet and on many other networks.

More information

2. IP Networks, IP Hosts and IP Ports

2. IP Networks, IP Hosts and IP Ports 1. Introduction to IP... 1 2. IP Networks, IP Hosts and IP Ports... 1 3. IP Packet Structure... 2 4. IP Address Structure... 2 Network Portion... 2 Host Portion... 3 Global vs. Private IP Addresses...3

More information

Computer Networks CS321

Computer Networks CS321 Computer Networks CS321 Dr. Ramana I.I.T Jodhpur Dr. Ramana ( I.I.T Jodhpur ) Computer Networks CS321 1 / 22 Outline of the Lectures 1 Introduction OSI Reference Model Internet Protocol Performance Metrics

More information

Introduction to LAN/WAN. Network Layer (part II)

Introduction to LAN/WAN. Network Layer (part II) Introduction to LAN/WAN Network Layer (part II) Topics The Network Layer Introduction Routing (5.2) The Internet (5.5) IP, IP addresses ARP (5.5.4) OSPF (5.5.5) BGP (5.5.6) Congestion Control (5.3) Internetworking

More information

Network-Oriented Software Development. Course: CSc4360/CSc6360 Instructor: Dr. Beyah Sessions: M-W, 3:00 4:40pm Lecture 2

Network-Oriented Software Development. Course: CSc4360/CSc6360 Instructor: Dr. Beyah Sessions: M-W, 3:00 4:40pm Lecture 2 Network-Oriented Software Development Course: CSc4360/CSc6360 Instructor: Dr. Beyah Sessions: M-W, 3:00 4:40pm Lecture 2 Topics Layering TCP/IP Layering Internet addresses and port numbers Encapsulation

More information

CSET 4750 Computer Networks and Data Communications (4 semester credit hours) CSET Required IT Required

CSET 4750 Computer Networks and Data Communications (4 semester credit hours) CSET Required IT Required CSET 4750 Computer Networks and Data Communications (4 semester credit hours) CSET Required IT Required Current Catalog Description: Computer network architectures and their application to industry needs.

More information

Computer Networks 1 (Mạng Máy Tính 1) Lectured by: Dr. Phạm Trần Vũ

Computer Networks 1 (Mạng Máy Tính 1) Lectured by: Dr. Phạm Trần Vũ Computer Networks 1 (Mạng Máy Tính 1) Lectured by: Dr. Phạm Trần Vũ 1 Lecture 7: Network Layer in the Internet Reference: Chapter 5 - Computer Networks, Andrew S. Tanenbaum, 4th Edition, Prentice Hall,

More information

Internet Firewall CSIS 4222. Packet Filtering. Internet Firewall. Examples. Spring 2011 CSIS 4222. net15 1. Routers can implement packet filtering

Internet Firewall CSIS 4222. Packet Filtering. Internet Firewall. Examples. Spring 2011 CSIS 4222. net15 1. Routers can implement packet filtering Internet Firewall CSIS 4222 A combination of hardware and software that isolates an organization s internal network from the Internet at large Ch 27: Internet Routing Ch 30: Packet filtering & firewalls

More information

Internetworking and IP Address

Internetworking and IP Address Lecture 8 Internetworking and IP Address Motivation of Internetworking Internet Architecture and Router Internet TCP/IP Reference Model and Protocols IP Addresses - Binary and Dotted Decimal IP Address

More information

LESSON 3.6. 98-366 Networking Fundamentals. Understand TCP/IP

LESSON 3.6. 98-366 Networking Fundamentals. Understand TCP/IP Understand TCP/IP Lesson Overview In this lesson, you will learn about: TCP/IP Tracert Telnet Netstat Reserved addresses Local loopback IP Ping Pathping Ipconfig Protocols Anticipatory Set Experiment with

More information

Review: Lecture 1 - Internet History

Review: Lecture 1 - Internet History Review: Lecture 1 - Internet History late 60's ARPANET, NCP 1977 first internet 1980's The Internet collection of networks communicating using the TCP/IP protocols 1 Review: Lecture 1 - Administration

More information

TCP/IP Basis. OSI Model

TCP/IP Basis. OSI Model TCP/IP Basis 高 雄 大 學 資 訊 工 程 學 系 嚴 力 行 Source OSI Model Destination Application Presentation Session Transport Network Data-Link Physical ENCAPSULATION DATA SEGMENT PACKET FRAME BITS 0101010101010101010

More information

IP Network Layer. Datagram ID FLAG Fragment Offset. IP Datagrams. IP Addresses. IP Addresses. CSCE 515: Computer Network Programming TCP/IP

IP Network Layer. Datagram ID FLAG Fragment Offset. IP Datagrams. IP Addresses. IP Addresses. CSCE 515: Computer Network Programming TCP/IP CSCE 515: Computer Network Programming TCP/IP IP Network Layer Wenyuan Xu Department of Computer Science and Engineering University of South Carolina IP Datagrams IP is the network layer packet delivery

More information

Protocols. Packets. What's in an IP packet

Protocols. Packets. What's in an IP packet Protocols Precise rules that govern communication between two parties TCP/IP: the basic Internet protocols IP: Internet Protocol (bottom level) all packets shipped from network to network as IP packets

More information

SSVP SIP School VoIP Professional Certification

SSVP SIP School VoIP Professional Certification SSVP SIP School VoIP Professional Certification Exam Objectives The SSVP exam is designed to test your skills and knowledge on the basics of Networking and Voice over IP. Everything that you need to cover

More information

2057-15. First Workshop on Open Source and Internet Technology for Scientific Environment: with case studies from Environmental Monitoring

2057-15. First Workshop on Open Source and Internet Technology for Scientific Environment: with case studies from Environmental Monitoring 2057-15 First Workshop on Open Source and Internet Technology for Scientific Environment: with case studies from Environmental Monitoring 7-25 September 2009 TCP/IP Networking Abhaya S. Induruwa Department

More information

IP addressing and forwarding Network layer

IP addressing and forwarding Network layer The Internet Network layer Host, router network layer functions: IP addressing and forwarding Network layer Routing protocols path selection RIP, OSPF, BGP Transport layer: TCP, UDP forwarding table IP

More information

Overview of TCP/IP. TCP/IP and Internet

Overview of TCP/IP. TCP/IP and Internet Overview of TCP/IP System Administrators and network administrators Why networking - communication Why TCP/IP Provides interoperable communications between all types of hardware and all kinds of operating

More information

Internet Protocol: IP packet headers. vendredi 18 octobre 13

Internet Protocol: IP packet headers. vendredi 18 octobre 13 Internet Protocol: IP packet headers 1 IPv4 header V L TOS Total Length Identification F Frag TTL Proto Checksum Options Source address Destination address Data (payload) Padding V: Version (IPv4 ; IPv6)

More information

Understanding TCP/IP. Introduction. What is an Architectural Model? APPENDIX

Understanding TCP/IP. Introduction. What is an Architectural Model? APPENDIX APPENDIX A Introduction Understanding TCP/IP To fully understand the architecture of Cisco Centri Firewall, you need to understand the TCP/IP architecture on which the Internet is based. This appendix

More information

Efficient Addressing. Outline. Addressing Subnetting Supernetting CS 640 1

Efficient Addressing. Outline. Addressing Subnetting Supernetting CS 640 1 Efficient Addressing Outline Addressing Subnetting Supernetting CS 640 1 IPV4 Global Addresses Properties IPv4 uses 32 bit address space globally unique hierarchical: network + host 7 24 Dot Notation 10.3.2.4

More information

Mobile IP. Bheemarjuna Reddy Tamma IIT Hyderabad. Source: Slides of Charlie Perkins and Geert Heijenk on Mobile IP

Mobile IP. Bheemarjuna Reddy Tamma IIT Hyderabad. Source: Slides of Charlie Perkins and Geert Heijenk on Mobile IP Mobile IP Bheemarjuna Reddy Tamma IIT Hyderabad Source: Slides of Charlie Perkins and Geert Heijenk on Mobile IP IP Refresher Mobile IP Basics 3 parts of Mobile IP: Outline Advertising Care-of Addresses

More information

Chapter 3. TCP/IP Networks. 3.1 Internet Protocol version 4 (IPv4)

Chapter 3. TCP/IP Networks. 3.1 Internet Protocol version 4 (IPv4) Chapter 3 TCP/IP Networks 3.1 Internet Protocol version 4 (IPv4) Internet Protocol version 4 is the fourth iteration of the Internet Protocol (IP) and it is the first version of the protocol to be widely

More information

IP - The Internet Protocol

IP - The Internet Protocol Orientation IP - The Internet Protocol IP (Internet Protocol) is a Network Layer Protocol. IP s current version is Version 4 (IPv4). It is specified in RFC 891. TCP UDP Transport Layer ICMP IP IGMP Network

More information

Raritan Valley Community College Academic Course Outline. CISY 253 - Advanced Computer Networking

Raritan Valley Community College Academic Course Outline. CISY 253 - Advanced Computer Networking Raritan Valley Community College Academic Course Outline CISY 253 - Advanced Computer Networking I. Basic Course Information A. Course number and Title: CISY 253- Advanced Computer Networking (TCP/IP)

More information

Network layer: Overview. Network layer functions IP Routing and forwarding

Network layer: Overview. Network layer functions IP Routing and forwarding Network layer: Overview Network layer functions IP Routing and forwarding 1 Network layer functions Transport packet from sending to receiving hosts Network layer protocols in every host, router application

More information

Guide to TCP/IP, Third Edition. Chapter 3: Data Link and Network Layer TCP/IP Protocols

Guide to TCP/IP, Third Edition. Chapter 3: Data Link and Network Layer TCP/IP Protocols Guide to TCP/IP, Third Edition Chapter 3: Data Link and Network Layer TCP/IP Protocols Objectives Understand the role that data link protocols, such as SLIP and PPP, play for TCP/IP Distinguish among various

More information

cnds@napier Slide 1 Introduction cnds@napier 1 Lecture 6 (Network Layer)

cnds@napier Slide 1 Introduction cnds@napier 1 Lecture 6 (Network Layer) Slide 1 Introduction In today s and next week s lecture we will cover two of the most important areas in networking and the Internet: IP and TCP. These cover the network and transport layer of the OSI

More information

Guide to Network Defense and Countermeasures Third Edition. Chapter 2 TCP/IP

Guide to Network Defense and Countermeasures Third Edition. Chapter 2 TCP/IP Guide to Network Defense and Countermeasures Third Edition Chapter 2 TCP/IP Objectives Explain the fundamentals of TCP/IP networking Describe IPv4 packet structure and explain packet fragmentation Describe

More information

Introduction to TCP/IP

Introduction to TCP/IP Introduction to TCP/IP Raj Jain The Ohio State University Columbus, OH 43210 Nayna Networks Milpitas, CA 95035 Email: Jain@ACM.Org http://www.cis.ohio-state.edu/~jain/ 1 Overview! Internetworking Protocol

More information

s@lm@n CompTIA Exam N10-006 CompTIA Network+ certification Version: 5.1 [ Total Questions: 1146 ]

s@lm@n CompTIA Exam N10-006 CompTIA Network+ certification Version: 5.1 [ Total Questions: 1146 ] s@lm@n CompTIA Exam N10-006 CompTIA Network+ certification Version: 5.1 [ Total Questions: 1146 ] Topic break down Topic No. of Questions Topic 1: Network Architecture 183 Topic 2: Network Operations 149

More information

Enterprise Edge Communications Manager. Data Capabilities

Enterprise Edge Communications Manager. Data Capabilities Enterprise Edge Communications Manager Data Capabilities Data Module Objectives After the completion of this module you will be able to describe the following Data components of the Enterprise Edge Communications

More information

Network Security TCP/IP Refresher

Network Security TCP/IP Refresher Network Security TCP/IP Refresher What you (at least) need to know about networking! Dr. David Barrera Network Security HS 2014 Outline Network Reference Models Local Area Networks Internet Protocol (IP)

More information

Communications and Networking

Communications and Networking Communications and Networking History and Background telephone system local area networks Internet architecture: what the pieces are and how they fit together names and addresses: what's your name and

More information

Final for ECE374 05/06/13 Solution!!

Final for ECE374 05/06/13 Solution!! 1 Final for ECE374 05/06/13 Solution!! Instructions: Put your name and student number on each sheet of paper! The exam is closed book. You have 90 minutes to complete the exam. Be a smart exam taker -

More information

RARP: Reverse Address Resolution Protocol

RARP: Reverse Address Resolution Protocol SFWR 4C03: Computer Networks and Computer Security January 19-22 2004 Lecturer: Kartik Krishnan Lectures 7-9 RARP: Reverse Address Resolution Protocol When a system with a local disk is bootstrapped it

More information

Troubleshooting Tools

Troubleshooting Tools Troubleshooting Tools An overview of the main tools for verifying network operation from a host Fulvio Risso Mario Baldi Politecnico di Torino (Technical University of Turin) see page 2 Notes n The commands/programs

More information

Address Resolution Protocol (ARP)

Address Resolution Protocol (ARP) Address Resolution Protocol (ARP) Question: how do packets actually get to their destination? IP routing tables: based on network addresses Ethernet physical interfaces only understand ethernet addresses

More information

EINDHOVEN UNIVERSITY OF TECHNOLOGY Department of Mathematics and Computer Science

EINDHOVEN UNIVERSITY OF TECHNOLOGY Department of Mathematics and Computer Science EINDHOVEN UNIVERSITY OF TECHNOLOGY Department of Mathematics and Computer Science Examination Computer Networks (2IC15) on Monday, June 22 nd 2009, 9.00h-12.00h. First read the entire examination. There

More information

Overview of Computer Networks

Overview of Computer Networks Overview of Computer Networks Client-Server Transaction Client process 4. Client processes response 1. Client sends request 3. Server sends response Server process 2. Server processes request Resource

More information

Lab 2. CS-335a. Fall 2012 Computer Science Department. Manolis Surligas surligas@csd.uoc.gr

Lab 2. CS-335a. Fall 2012 Computer Science Department. Manolis Surligas surligas@csd.uoc.gr Lab 2 CS-335a Fall 2012 Computer Science Department Manolis Surligas surligas@csd.uoc.gr 1 Summary At this lab we will cover: Basics of Transport Layer (TCP, UDP) Broadcast ARP DNS More Wireshark filters

More information

Mobile IP Network Layer Lesson 02 TCP/IP Suite and IP Protocol

Mobile IP Network Layer Lesson 02 TCP/IP Suite and IP Protocol Mobile IP Network Layer Lesson 02 TCP/IP Suite and IP Protocol 1 TCP/IP protocol suite A suite of protocols for networking for the Internet Transmission control protocol (TCP) or User Datagram protocol

More information

Interconnecting Cisco Network Devices 1 Course, Class Outline

Interconnecting Cisco Network Devices 1 Course, Class Outline www.etidaho.com (208) 327-0768 Interconnecting Cisco Network Devices 1 Course, Class Outline 5 Days Interconnecting Cisco Networking Devices, Part 1 (ICND1) v2.0 is a five-day, instructorled training course

More information

Computer Networks/DV2 Lab

Computer Networks/DV2 Lab Computer Networks/DV2 Lab Room: BB 219 Additional Information: http://www.fb9dv.uni-duisburg.de/ti/en/education/teaching/ss08/netlab Equipment for each group: - 1 Server computer (OS: Windows 2000 Advanced

More information

Networking Basics for Automation Engineers

Networking Basics for Automation Engineers Networking Basics for Automation Engineers Page 1 of 10 mac-solutions.co.uk v1.0 Oct 2014 1. What is Transmission Control Protocol/Internet Protocol (TCP/IP)------------------------------------------------------------

More information

Note! The problem set consists of two parts: Part I: The problem specifications pages Part II: The answer pages

Note! The problem set consists of two parts: Part I: The problem specifications pages Part II: The answer pages Part I: The problem specifications NTNU The Norwegian University of Science and Technology Department of Telematics Note! The problem set consists of two parts: Part I: The problem specifications pages

More information

Introduction to IP v6

Introduction to IP v6 IP v 1-3: defined and replaced Introduction to IP v6 IP v4 - current version; 20 years old IP v5 - streams protocol IP v6 - replacement for IP v4 During developments it was called IPng - Next Generation

More information

Using MIS 3e Chapter 6A Appendix

Using MIS 3e Chapter 6A Appendix Study Questions Using MIS 3e Chapter 6A Appendix How the Internet Works David Kroenke Q1: How does email travel? Q2: What is a communications protocol? Q3: What are the functions of the five TCP/IP-OSI

More information

Cape Girardeau Career Center CISCO Networking Academy Bill Link, Instructor. 2.,,,, and are key services that ISPs can provide to all customers.

Cape Girardeau Career Center CISCO Networking Academy Bill Link, Instructor. 2.,,,, and are key services that ISPs can provide to all customers. Name: 1. What is an Enterprise network and how does it differ from a WAN? 2.,,,, and are key services that ISPs can provide to all customers. 3. Describe in detail what a managed service that an ISP might

More information

TCP/IP Protocol Suite. Marshal Miller Chris Chase

TCP/IP Protocol Suite. Marshal Miller Chris Chase TCP/IP Protocol Suite Marshal Miller Chris Chase Robert W. Taylor (Director of Information Processing Techniques Office at ARPA 1965-1969) "For each of these three terminals, I had three different sets

More information

SSVVP SIP School VVoIP Professional Certification

SSVVP SIP School VVoIP Professional Certification SSVVP SIP School VVoIP Professional Certification Exam Objectives The SSVVP exam is designed to test your skills and knowledge on the basics of Networking, Voice over IP and Video over IP. Everything that

More information

EXPLORER. TFT Filter CONFIGURATION

EXPLORER. TFT Filter CONFIGURATION EXPLORER TFT Filter Configuration Page 1 of 9 EXPLORER TFT Filter CONFIGURATION Thrane & Thrane Author: HenrikMøller Rev. PA4 Page 1 6/15/2006 EXPLORER TFT Filter Configuration Page 2 of 9 1 Table of Content

More information

Application Protocols for TCP/IP Administration

Application Protocols for TCP/IP Administration Application Protocols for TCP/IP Administration BootP, TFTP, DHCP Agenda BootP TFTP DHCP BootP, TFTP, DHCP, v4.4 2 Page 60-1 BootP (RFC 951, 1542, 2132) BootP was developed to replace RARP capabilities

More information

CS335 Sample Questions for Exam #2

CS335 Sample Questions for Exam #2 CS335 Sample Questions for Exam #2.) Compare connection-oriented with connectionless protocols. What type of protocol is IP? How about TCP and UDP? Connection-oriented protocols Require a setup time to

More information

100-101: Interconnecting Cisco Networking Devices Part 1 v2.0 (ICND1)

100-101: Interconnecting Cisco Networking Devices Part 1 v2.0 (ICND1) 100-101: Interconnecting Cisco Networking Devices Part 1 v2.0 (ICND1) Course Overview This course provides students with the knowledge and skills to implement and support a small switched and routed network.

More information

Dynamic Host Configuration Protocol (DHCP) 02 NAT and DHCP Tópicos Avançados de Redes

Dynamic Host Configuration Protocol (DHCP) 02 NAT and DHCP Tópicos Avançados de Redes Dynamic Host Configuration Protocol (DHCP) 1 1 Dynamic Assignment of IP addresses Dynamic assignment of IP addresses is desirable for several reasons: IP addresses are assigned on-demand Avoid manual IP

More information

SUPPORT DE COURS. Dr. Omari Mohammed Maître de Conférences Classe A Université d Adrar Courriel : omarinmt@gmail.com

SUPPORT DE COURS. Dr. Omari Mohammed Maître de Conférences Classe A Université d Adrar Courriel : omarinmt@gmail.com Dr. Omari Mohammed Maître de Conférences Classe A Université d Adrar Courriel : omarinmt@gmail.com SUPPORT DE COURS Matière : Réseaux 2 Niveau : 3 ème Année Licence en Informatique Option : Réseaux et

More information

TCP/IP Networking Terms you ll need to understand: Techniques you ll need to master:

TCP/IP Networking Terms you ll need to understand: Techniques you ll need to master: 5 TCP/IP Networking Terms you ll need to understand: Subnet mask Subnetting Classless Interdomain Routing (CIDR) Transmission Control Protocol/Internet Protocol (TCP/IP) Address Resolution Protocol (ARP)

More information

Chapter 11. User Datagram Protocol (UDP)

Chapter 11. User Datagram Protocol (UDP) Chapter 11 User Datagram Protocol (UDP) The McGraw-Hill Companies, Inc., 2000 1 CONTENTS PROCESS-TO-PROCESS COMMUNICATION USER DATAGRAM CHECKSUM UDP OPERATION USE OF UDP UDP PACKAGE The McGraw-Hill Companies,

More information

Internet Protocols. Addressing & Services. Updated: 9-29-2012

Internet Protocols. Addressing & Services. Updated: 9-29-2012 Internet Protocols Addressing & Services Updated: 9-29-2012 Virtual vs. Physical Networks MAC is the part of the underlying network MAC is used on the LAN What is the addressing mechanism in WAN? WAN is

More information

TCP/IP Network Essentials. Linux System Administration and IP Services

TCP/IP Network Essentials. Linux System Administration and IP Services TCP/IP Network Essentials Linux System Administration and IP Services Layers Complex problems can be solved using the common divide and conquer principle. In this case the internals of the Internet are

More information

Lecture 28: Internet Protocols

Lecture 28: Internet Protocols Lecture 28: Internet Protocols 15-110 Principles of Computing, Spring 2016 Dilsun Kaynar, Margaret Reid-Miller, Stephanie Balzer Reminder: Exam 2 Exam 2 will take place next Monday, on April 4. Further

More information

Multi-Homing Security Gateway

Multi-Homing Security Gateway Multi-Homing Security Gateway MH-5000 Quick Installation Guide 1 Before You Begin It s best to use a computer with an Ethernet adapter for configuring the MH-5000. The default IP address for the MH-5000

More information

10CS64: COMPUTER NETWORKS - II

10CS64: COMPUTER NETWORKS - II QUESTION BANK 10CS64: COMPUTER NETWORKS - II Part A Unit 1 & 2: Packet-Switching Networks 1 and Packet-Switching Networks 2 1. Mention different types of network services? Explain the same. 2. Difference

More information

The OSI and TCP/IP Models. Lesson 2

The OSI and TCP/IP Models. Lesson 2 The OSI and TCP/IP Models Lesson 2 Objectives Exam Objective Matrix Technology Skill Covered Exam Objective Exam Objective Number Introduction to the OSI Model Compare the layers of the OSI and TCP/IP

More information

Note! The problem set consists of two parts: Part I: The problem specifications pages Part II: The answer pages

Note! The problem set consists of two parts: Part I: The problem specifications pages Part II: The answer pages Part I: The problem specifications NTNU The Norwegian University of Science and Technology Department of Telematics Note! The problem set consists of two parts: Part I: The problem specifications pages

More information

Outline. CSc 466/566. Computer Security. 18 : Network Security Introduction. Network Topology. Network Topology. Christian Collberg

Outline. CSc 466/566. Computer Security. 18 : Network Security Introduction. Network Topology. Network Topology. Christian Collberg Outline Network Topology CSc 466/566 Computer Security 18 : Network Security Introduction Version: 2012/05/03 13:59:29 Department of Computer Science University of Arizona collberg@gmail.com Copyright

More information

Gary Hecht Computer Networking (IP Addressing, Subnet Masks, and Packets)

Gary Hecht Computer Networking (IP Addressing, Subnet Masks, and Packets) Gary Hecht Computer Networking (IP Addressing, Subnet Masks, and Packets) The diagram below illustrates four routers on the Internet backbone along with two companies that have gateways for their internal

More information

Networking Overview. (as usual, thanks to Dave Wagner and Vern Paxson)

Networking Overview. (as usual, thanks to Dave Wagner and Vern Paxson) Networking Overview (as usual, thanks to Dave Wagner and Vern Paxson) Focus For This Lecture Sufficient background in networking to then explore security issues in next few lectures Networking = the Internet

More information

LAN TCP/IP and DHCP Setup

LAN TCP/IP and DHCP Setup CHAPTER 2 LAN TCP/IP and DHCP Setup 2.1 Introduction In this chapter, we will explain in more detail the LAN TCP/IP and DHCP Setup. 2.2 LAN IP Network Configuration In the Vigor 2900 router, there are

More information

Introduction To Computer Networking

Introduction To Computer Networking Introduction To Computer Networking Alex S. 1 Introduction 1.1 Serial Lines Serial lines are generally the most basic and most common communication medium you can have between computers and/or equipment.

More information

Chapter 5. Data Communication And Internet Technology

Chapter 5. Data Communication And Internet Technology Chapter 5 Data Communication And Internet Technology Purpose Understand the fundamental networking concepts Agenda Network Concepts Communication Protocol TCP/IP-OSI Architecture Network Types LAN WAN

More information

Networking 4 Voice and Video over IP (VVoIP)

Networking 4 Voice and Video over IP (VVoIP) Networking 4 Voice and Video over IP (VVoIP) Course Objectives This course will give delegates a good understanding of LANs, WANs and VVoIP (Voice and Video over IP). It is aimed at those who want to move

More information

Indian Institute of Technology Kharagpur. TCP/IP Part I. Prof Indranil Sengupta Computer Science and Engineering Indian Institute of Technology

Indian Institute of Technology Kharagpur. TCP/IP Part I. Prof Indranil Sengupta Computer Science and Engineering Indian Institute of Technology Indian Institute of Technology Kharagpur TCP/IP Part I Prof Indranil Sengupta Computer Science and Engineering Indian Institute of Technology Kharagpur Lecture 3: TCP/IP Part I On completion, the student

More information

TCP/IP and the Internet

TCP/IP and the Internet TCP/IP and the Internet Computer networking today is becoming more and more entwined with the internet. By far the most popular protocol set in use is TCP/IP (Transmission Control Protocol/Internet Protocol).

More information

Protocol Specification & Design. The Internet and its Protocols. Course Outline (trivia) Introduction to the Subject Teaching Methods

Protocol Specification & Design. The Internet and its Protocols. Course Outline (trivia) Introduction to the Subject Teaching Methods The Internet and its Protocols Protocol Specification & Design Robert Elz kre@munnari.oz.au kre@coe.psu.ac.th http://fivedots.coe.psu.ac.th/~kre/ Friday: 13:30-15:00 (Rm: 101)???: xx:x0-xx:x0 (Rm:???)

More information

HOST AUTO CONFIGURATION (BOOTP, DHCP)

HOST AUTO CONFIGURATION (BOOTP, DHCP) Announcements HOST AUTO CONFIGURATION (BOOTP, DHCP) I. HW5 online today, due in week! Internet Protocols CSC / ECE 573 Fall, 2005 N. C. State University copyright 2005 Douglas S. Reeves 2 I. Auto configuration

More information

How do I get to www.randomsite.com?

How do I get to www.randomsite.com? Networking Primer* *caveat: this is just a brief and incomplete introduction to networking to help students without a networking background learn Network Security. How do I get to www.randomsite.com? Local

More information

Computer Networks. Lecture 3: IP Protocol. Marcin Bieńkowski. Institute of Computer Science University of Wrocław

Computer Networks. Lecture 3: IP Protocol. Marcin Bieńkowski. Institute of Computer Science University of Wrocław Computer Networks Lecture 3: IP Protocol Marcin Bieńkowski Institute of Computer Science University of Wrocław Computer networks (II UWr) Lecture 3 1 / 24 In previous lectures We learned about layer 1

More information

Datagram-based network layer: forwarding; routing. Additional function of VCbased network layer: call setup.

Datagram-based network layer: forwarding; routing. Additional function of VCbased network layer: call setup. CEN 007C Computer Networks Fundamentals Instructor: Prof. A. Helmy Homework : Network Layer Assigned: Nov. 28 th, 2011. Due Date: Dec 8 th, 2011 (to the TA) 1. ( points) What are the 2 most important network-layer

More information

Configure A VoIP Network

Configure A VoIP Network Configure A VoIP Network Prof. Mr. Altaf. I. Darvadiya Electronics & Communication C.U.Shah College of Engg. & Tech. Wadhwan(363030), India e-mail: alto.ec@gmail.com Ms. Zarna M. Gohil Electronics & Communication

More information

Chapter 3: Review of Important Networking Concepts. Magda El Zarki Dept. of CS UC Irvine elzarki@uci.edu http://www.ics.uci.

Chapter 3: Review of Important Networking Concepts. Magda El Zarki Dept. of CS UC Irvine elzarki@uci.edu http://www.ics.uci. Chapter 3: Review of Important Networking Concepts Magda El Zarki Dept. of CS UC Irvine elzarki@uci.edu http://www.ics.uci.edu/~magda 1 Networking Concepts Protocol Architecture Protocol Layers Encapsulation

More information

EITF25 Internet Techniques and Applications L5: Wide Area Networks (WAN) Stefan Höst

EITF25 Internet Techniques and Applications L5: Wide Area Networks (WAN) Stefan Höst EITF25 Internet Techniques and Applications L5: Wide Area Networks (WAN) Stefan Höst Data communication in reality In reality, the source and destination hosts are very seldom on the same network, for

More information

Internetworking Microsoft TCP/IP on Microsoft Windows NT 4.0

Internetworking Microsoft TCP/IP on Microsoft Windows NT 4.0 Internetworking Microsoft TCP/IP on Microsoft Windows NT 4.0 Course length: 5 Days Course No. 688 - Five days - Instructor-led Introduction This course provides students with the knowledge and skills required

More information

"Charting the Course...

Charting the Course... Description "Charting the Course... Course Summary Interconnecting Cisco Networking Devices: Accelerated (CCNAX), is a course consisting of ICND1 and ICND2 content in its entirety, but with the content

More information

Transport Layer Protocols

Transport Layer Protocols Transport Layer Protocols Version. Transport layer performs two main tasks for the application layer by using the network layer. It provides end to end communication between two applications, and implements

More information

The Internet. Chapter 10. Learning Objectives. Chapter Outline. After reading this chapter, you should be able to:

The Internet. Chapter 10. Learning Objectives. Chapter Outline. After reading this chapter, you should be able to: The Internet Chapter 10 Learning Objectives After reading this chapter, you should be able to: Discuss the responsibilities of the Internet Protocol (IP) and how IP can be used to create a connection between

More information