Getting Started with Getting Started with LAN Networks LAN Networks
Jan 03, 2016
Getting Started withGetting Started withLAN Networks LAN Networks
Getting Started withGetting Started withLAN Networks LAN Networks
Course Objectives
Upon completion of this course, you will be able to perform the following tasks:
• Determine when to use a hub, Ethernet switch, or multiprotocol router
• Interconnect switches and routers according to a specification
• Configure switches and routers to support LAN service
• Set up IP subnet addressing and address utilities for effective network administration
Course Objectives
• Verify that switches, routers, and their configured network services operate as intended
• Recognize a network problem, identify the source of the problem, and resolve it.
Course Topics
CSU/DSU WAN
Legend
Ethernet/ FastEthernet
Serial
Participant Role
• Introduce yourself• Ask/answer question
Student Role
Welcome : PleaseIntroduce Yourself
• Your name and work Iocation
• Your job responsibility
• Your internetworking experience
• Your objectives for this week
Course Syllabus
Day 1 Day 2 Day 3
OSI Reference Model
LAN Protocol
WAN Protocol
Introduction toSK Telecom network
Operating andConfiguring Network
Devices - Router
Assembling andCabling Network
Devices
Managing Your LANNetwork
Test
Introduction to TCP/IP
Operating andConfiguring Network
Devices - Switch
AppendixBuilding Lan Network
for Home LAN/SOHO user
Graphic Symbols
BridgeBridgeBridgeBridge SwitchSwitchSwitchSwitch RouterRouterRouterRouter
DSU/CSU
Multi-layerMulti-layerSwitchSwitch
Multi-layerMulti-layerSwitchSwitch
NetworkNetworkSwitchSwitch
NetworkNetworkSwitchSwitch
PersonalPersonalcomputercomputerPersonalPersonalcomputercomputer
File ServerFile ServerFile ServerFile Server Data Service Unit/Data Service Unit/Channel Service UnitChannel Service Unit
Data Service Unit/Data Service Unit/Channel Service UnitChannel Service Unit
ModemModemModemModem HubHubHubHub
EthernetEthernetEthernetEthernet Fast EthernetFast EthernetFast EthernetFast Ethernet Serial LineSerial LineSerial LineSerial Line Circuit SwitchedCircuit SwitchedLineLine
Circuit SwitchedCircuit SwitchedLineLine
Network CloudNetwork CloudNetwork CloudNetwork Cloud
OSI Reference ModelOSI Reference Model
Objectives
Upon completion of this chapter, you will be able to perform the following tasks:
• Identify and describe the functions of each of the seven layers of the OSI reference model
• Define and explain the 5 conversion steps of data encapsulation
OSI Reference Model
통신기능층
응용기능층
하
위
층
상
위
층
7
1
2
3
4
5
6제 6 층 : 표현층 (Presentation Layer)
제 5 층 : 세션층 (Session Layer)
제 4 층 : 전송층 (Transport Layer)
제 3 층 : 네트웍층 (Network Layer)
제 2 층 : 데이타링크층 (Data Link Layer)
제 1 층 : 물리층 (Physical Layer)
제 7 층 : 응용층 (Applicaion Layer)
1
2
3
7
1
2
3
4
5
통신네트워크
기능층
6
Communication Media
단말시스템
통신망시스템
단말시스템
• OSI Model Overview
OSI Reference Model
• Role of Application Layers
Application
Physical
Data Link
Network Layer
Transport Layer
Session
Presentation
User Interface
How data is presentedSpecial processingsuch as encryption
Keeping differentapplication’sdata separate
EXAMPLES
TelnetHTTP
ASCIIEBCDICJPEGOperating System/Application AccessScheduling
OSI Reference Model
• Role of Data Flow Layers
Application
Physical
Data Link
Network Layer
Transport Layer
Session
Presentation
EXAMPLES
TCPUDPSPX
802.3/802.2HDLC
EIA/TIA-232V.35
Move bits between devicesSpecifies voltage, wire speed andpin-out cables
Move bits between devicesSpecifies voltage, wire speed andpin-out cables
Combines bits int bytes andbytes into framesAccess to media using MAC addressError detection not correction
Combines bits int bytes andbytes into framesAccess to media using MAC addressError detection not correction
IPIPX
Reliable or unreliable deliveryError correction before retransmissionReliable or unreliable deliveryError correction before retransmission
Provide logical addressing whichrouters use for path determinationProvide logical addressing whichrouters use for path determination
OSI Reference Model
• Network Layer Communication Model
Data Link ServiceAccess Point
NS이용자
NS제공자
NS이용자
NS제공자
TransportLayer
Data LinkLayer 이하
NetworkLayer
Data Link Service
Network ServiceAccess Point
*NS : Network Service
Network Protocol
Network Service
Open System Open System
Communicating Between Layers
• Encapsulating Data
ApplicationApplication
PresentationPresentation
SessionSession
TransportTransport
NetworkNetwork
Data LinkData Link
PhysicalPhysical
PDU
Segment
Packet
Frame
Bits
Upper Layer DataUpper Layer Data
Upper Layer DataUpper Layer DataTCP HeaderTCP Header
DataDataIP HeaderIP Header
DataData
DataData
010111010110001000011110010111010110001000011110
LLC HeaderLLC Header
MAC HeaderMAC Header
FCSFCS
FCSFCS
Communicating Between Layers
• Encapsulating Data
ApplicationApplication
PresentationPresentation
SessionSession
TransportTransport
NetworkNetwork
Data LinkData Link
PhysicalPhysical
PDU
Segment
Packet
Frame
Bits
Upper Layer DataUpper Layer Data
Upper Layer DataUpper Layer DataTCP HeaderTCP Header
DataDataIP HeaderIP Header
DataData
DataData
010111010110001000011110010111010110001000011110
LLC HeaderLLC Header
MAC HeaderMAC Header
FCSFCS
FCSFCS
Communicating Between Layers
• De-encapsulating Data
ApplicationApplication
PresentationPresentation
SessionSession
TransportTransport
NetworkNetwork
Data LinkData Link
PhysicalPhysical
Upper Layer DataUpper Layer Data
Upper Layer DataUpper Layer Data
TCP Header
TCP Header
TCP Header
TCP Header
TCP + Upper Layer DataTCP + Upper Layer Data
IP HeaderIP HeaderIP HeaderIP Header
IP + TCP + Upper Layer DataIP + TCP + Upper Layer Data
LLC Hdr + IP + TCP +Upper layer DataLLC Hdr + IP + TCP +Upper layer Data
010111010110001000011110010111010110001000011110
LLC Header
LLC Header
LLC Header
LLC Header
MAC Header
MAC Header
MAC Header
MAC Header
LAN ProtocolLAN Protocol
Objectives
Upon completion of this chapter, you will be able to perform the following tasks:
• Describe data link address and network addresses, and identify the key differences between them
• List the key internetworking functions of the OSI Network layer and how they are performed in a router
Physical Layers Functions
• Media type• Connection type• Signaling type
V.3
5V
.35
V.3
5V
.35
EIA
-TIA
-232
EIA
-TIA
-232
EIA
-TIA
-232
EIA
-TIA
-232
Ph
ysic
al L
ayer
Ph
ysic
al L
ayer
Ph
ysic
al L
ayer
Ph
ysic
al L
ayer
802.
380
2.3
802.
380
2.3
Eth
ern
etE
ther
net
Eth
ern
etE
ther
net
Physical Layers Functions
• Physical Layer : Ethernet/802.3
HostHostHostHost
HubHubHubHub
HostsHostsHostsHosts
RouterRouterRouterRouter 10Base2 - Thick Ethernet10Base5 - Thick Ethernet
10BaseT - Twisted Pair
Data Link layers Functions
• Physical source and destination addresses
• Higher layer protocol (Service Access Point)
• Network topology• Frame sequencing• Flow control• Connection-oriented
or connectionlessP
hys
ical
Ph
ysic
alP
hys
ical
Ph
ysic
al
Eth
ern
etE
ther
net
Eth
ern
etE
ther
net
Dat
a L
ink
Dat
a L
ink
Dat
a L
ink
Dat
a L
ink
802.
380
2.3
802.
380
2.3
EIA
-TIA
-232
EIA
-TIA
-232
EIA
-TIA
-232
EIA
-TIA
-232
V.3
5V
.35
V.3
5V
.35
802.
280
2.2
802.
280
2.2
HD
LC
HD
LC
HD
LC
HD
LC
Fra
me
Rel
ayF
ram
e R
elay
Fra
me
Rel
ayF
ram
e R
elay
Data Link layers Functions (cont.)
MAC Layer - 802.3
PreamblePreamble Dest addDest add Source addSource add LengthLength DataData FCSFCS
# Bytes# Bytes 88 66 66 22 VariableVariable 44
0000.0C0000.0C xx.xxxxxx.xxxx
IEEE assignedIEEE assigned VendorVendorassignedassigned
MAC Layer
Ethernet IIEthernet IIuses “Type”uses “Type”here andhere anddoes not usedoes not use802.2802.2
Data Link layers Functions (cont.)
MAC Layer - 802.3
PreamblePreamble Dest addDest add Source addSource add LengthLength DataData FCSFCS
# Bytes# Bytes 88 66 66 22 VariableVariable 44
0000.0C0000.0C xx.xxxxxx.xxxx
IEEE assignedIEEE assigned VendorVendorassignedassigned
MAC Layer
Ethernet IIEthernet IIuses “Type”uses “Type”here andhere anddoes not usedoes not use802.2802.2
Data Link layers Functions (cont.)
802.2 (SNAP)
Dest SAPDest SAPAAAA
Source SAPSource SAPAAAA
CtrlCtrl0303
TypeType
# Bytes# Bytes 88 66 66 22 VariableVariable 44
MAC Layer - 802.3
OUIOUIIDID
DataData
DestDestSAPSAP
Source Source SAPSAP
CtrlCtrl0303
DataData
PreamblePreamble Dest addDest add Source addSource add LengthLength DataData FCSFCS
OrOr 802.2 (SAP)
Network Layers Functions
• Define logical source and destination addresses associated with a specific protocol
• Define paths through network
• Interconnects multiple data link
Ph
ysic
alP
hys
ical
Ph
ysic
alP
hys
ical
Eth
ern
etE
ther
net
Eth
ern
etE
ther
net
Dat
a L
ink
Dat
a L
ink
Dat
a L
ink
Dat
a L
ink
802.
380
2.3
802.
380
2.3
EIA
-TIA
-232
EIA
-TIA
-232
EIA
-TIA
-232
EIA
-TIA
-232
V.3
5V
.35
V.3
5V
.35
802.
280
2.2
802.
280
2.2
HD
LC
HD
LC
HD
LC
HD
LC
Fra
me
Rel
ayF
ram
e R
elay
Fra
me
Rel
ayF
ram
e R
elay
Net
wo
rkN
etw
ork
Net
wo
rkN
etw
ork
IP, IPXIP, IPXIP, IPXIP, IPX
Network Layers Functions (cont.)
Network Layer End Station Packet
IP HeaderIP Header SourceSourceaddressaddress
DestinationDestinationaddressaddress
DataData
150.20.1.3150.20.1.3
NetworkNetwork NodeNode
• Logical Address
Network Layers Functions (cont.)
172.16.122.204 255.255.0.0
1010110010101100
Network
0001000000010000 0111101001111010 1100110011001100
1111111111111111 1111111111111111 0000000000000000 0000000000000000
Host
172172 1616 122122 204204
255255 255255 00 00
BinaryBinaryAddressAddress
BinaryBinaryMaskMask
AddressAddress MaskMask
Network Layers Functions (cont.)
1.11.1
• Logical addressing allows for hierarchical networkLogical addressing allows for hierarchical network• Configuration requiredConfiguration required• Uses configured information to identify paths to networksUses configured information to identify paths to networks
Routing TableRouting TableRouting TableRouting Table
NETNETNETNET INTINTINTINT MetricMetricMetricMetric
112244
112244
E0E0S0S0S0S0
E0E0S0S0S0S0
000011
000011
Routing TableRouting TableRouting TableRouting Table
NETNETNETNET INTINTINTINT MetricMetricMetricMetric
112244
112244
S0S0S0S0E0E0
S0S0S0S0E0E0
110000
110000
1.01.0
1.31.3 2.12.1 2.22.2 4.34.3
4.04.04.14.1
4.24.21.21.2 E0E0 S0S0 S0S0 E0E0
Transport Layers Functions
• Reliable Transport Layer Function
SynchronizeSynchronize
Acknowledge, SynchronizeAcknowledge, Synchronize
AcknowledgeAcknowledge
Connection EstablishedConnection Established
Data TransferData Transfer
(Send Segments)(Send Segments)
WAN ProtocolWAN Protocol
Objectives
Upon completion of this chapter, you will be able to perform the following tasks:
• Differentiate between the following WAN services: Frame Relay, HDLC, PPP
• Identify PPP operations to encapsulate Wan data on Router
• Recognize key Frame Relay terms and features• Determine how Frame Relay operates
WAN Overviews
• WANs connect sites• Connection requirements vary depending on user r
equirements and cost
ServiceProvider
WAN Connection Types:Layer 1
TelephoneCompany
ServiceProvider
Synchronous serial
Asynchronous serial,ISDN Layer 1
Synchronous serial
Leased Line
Circuit-Switched
Packet-Switched
Interfacing WAN ServiceProviders
WAN service provider toll network
SSSS
Provider assigns connection parameters to subscriber
SSSS
SSSS
SSSS SSSS
SSSS SSSS
Trunks and switches
CO Switch
Local Loop
Demarcation
Customer PremisesEquipmentPoint-to-point or
circuit-switchedconnection
Typical WAN EncapsulationProtocols : Layer 2
TelephoneCompany
ServiceProvider
HDLC, PPP, SLIP
PPP, SLIP, HDLC
X,25, Frame Relay, ATM
Leased Line
Circuit-Switched
Packet-Switched
HDLC Frame Format
• Cisco’s HDLC has a proprietary data field to support multiprotocol environments
FlagFlag AddressAddress ProprietaryProprietary DataData FCSFCS FlagFlag
Cisco HDLCCisco HDLC
ControlControl
• Supports only single protocol environments
FlagFlag AddressAddress DataData FCSFCS FlagFlag
HDLCHDLC
ControlControl
An Overview of PPP
• WANs connect sites• Connection requirements vary depending on user r
equirements and cost
PPP Encapsulation
Link setup and controlusing LCP in PPP
TCP/IPNovell IPXAppleTalk
TCP/IPNovell IPXAppleTalk
Multiple protocolencapsulation using
NCPs in PPP
Layering PPP Elements
PhysicalPhysicalPhysicalPhysical
Data LinkData LinkLayerLayer
Data LinkData LinkLayerLayer
NetworkNetworkLayerLayer
NetworkNetworkLayerLayer
Synchronous or AsynchronousSynchronous or AsynchronousPhysical MediaPhysical Media
Synchronous or AsynchronousSynchronous or AsynchronousPhysical MediaPhysical Media
Authentication, other optionsAuthentication, other optionsLink Control ProtocolLink Control Protocol
Authentication, other optionsAuthentication, other optionsLink Control ProtocolLink Control Protocol
Network Control ProtocolNetwork Control ProtocolNetwork Control ProtocolNetwork Control Protocol
IPCPIPCPIPCPIPCP IPXCPIPXCPIPXCPIPXCP Many OthersMany OthersMany OthersMany Others
IPIPIPIP IPXIPXIPXIPX Layer 3 ProtocolLayer 3 ProtocolLayer 3 ProtocolLayer 3 Protocol
PPPPPP
PPP - A data link with network-layer services
PPP LCP Configuration Options
CompressionCompressionCompressionCompression
AuthenticationAuthenticationAuthenticationAuthentication Require a passwordRequire a passwordPerform Challenge HandshakePerform Challenge HandshakeRequire a passwordRequire a passwordPerform Challenge HandshakePerform Challenge Handshake
FeatureFeatureFeatureFeature
Compress data at source;Compress data at source;reproduce data atreproduce data atdestinationdestination
Compress data at source;Compress data at source;reproduce data atreproduce data atdestinationdestination
ErrorErrorDetectionDetectionErrorErrorDetectionDetection
Monitor data dropped on linkMonitor data dropped on linkAvoid frame loopingAvoid frame loopingMonitor data dropped on linkMonitor data dropped on linkAvoid frame loopingAvoid frame looping
MultilinkMultilinkMultilinkMultilink Load balancing acrossLoad balancing acrossmultiple linksmultiple linksLoad balancing acrossLoad balancing acrossmultiple linksmultiple links
How it OperatesHow it OperatesHow it OperatesHow it Operates ProtocolProtocolProtocolProtocol
PAPPAPCHAPCHAP
Stacker orStacker orPredictorPredictor
Magic NumberMagic Number
MultilinkMultilinkProtocol (MP)Protocol (MP)
Selecting a PPP AuthenticationProtocol
• Passwords sent in clear text• Peer in control of attempts
PAPPAP2-Way Handshake2-Way Handshake
PAPPAP2-Way Handshake2-Way Handshake
““Santacruz, boardwalk”Santacruz, boardwalk”
Accept/RejectAccept/Reject
Remote RouterRemote Router(SantaCruz)(SantaCruz)
Hostname:santacruzHostname:santacruzPassword:boardwalk Password:boardwalk
Central-Site RouterCentral-Site Router(HQ)(HQ)
Hostname:santacruzHostname:santacruzPassword:boardwalk Password:boardwalk
Selecting a PPP AuthenticationProtocol (cont.)
Use “Select” known only to authenticator and peer
CHAPCHAP3-Way Handshake3-Way Handshake
CHAPCHAP3-Way Handshake3-Way Handshake
Accept/RejectAccept/Reject
Remote RouterRemote Router(SantaCruz)(SantaCruz)
Hostname:santacruzHostname:santacruzPassword:boardwalk Password:boardwalk
Central-Site RouterCentral-Site Router(HQ)(HQ)
Hostname:santacruzHostname:santacruzPassword:boardwalk Password:boardwalk
ChallengeChallenge
ResponseResponse
Frame Relay Overview
Frame Relay works here
DSU/CSU
DCE orFrameRelay Switch
• Virtual circuits make connection• Connection-oriented service
Frame Relay Stack
Frame RelayFrame RelayFrame RelayFrame Relay
EIA/TIA-232EIA/TIA-232EIA/TIA-449, V.35,EIA/TIA-449, V.35,X.21, EIA/TIA-530X.21, EIA/TIA-530
IP/IPX/AppleTalk,etc.IP/IPX/AppleTalk,etc.
Data LinkData LinkData LinkData Link
PhysicalPhysicalPhysicalPhysical
NetworkNetworkNetworkNetwork
TransportTransportTransportTransport
SessionSessionSessionSession
PresentationPresentationPresentationPresentation
ApplicationApplicationApplicationApplication
OSI Reference ModelOSI Reference ModelOSI Reference ModelOSI Reference Model Frame RelayFrame RelayFrame RelayFrame Relay
Frame Relay Terminology
PVC
LM ILM I100 = Active100 = Active400 = Active400 = Active
LM ILM I100 = Active100 = Active400 = Active400 = Active
DLCI: 200
Local AccessLoop=64kbps
Local AccessLoop=64kbps
Local Access
Loop=T1
Introduction to TCP/IPIntroduction to TCP/IP
Objectives
Upon completion of this chapter, you will be able to perform the following tasks:
• Identify the IP protocol stack, its protocol layer functions, and commonly used IP protocols.
• Identify IP address classes, IP addresses, IP subnet masks, IP network numbers, subnet numbers, and possible host numbers.
• Configure IP addresses and subnet masks on a router interface and optionally configure a host table.
• Interconnect the VLANs with a layer three device such as a router on a stick.
Introduction to TCP/IP
Early protocol suite Universal
Host Host
Internet
TCP/IP
TCP/IP- Protocol stack
InternetInternet
Data LinkData LinkData LinkData Link
PhysicalPhysicalPhysicalPhysical
NetworkNetworkNetworkNetwork
TransportTransportTransportTransport
SessionSessionSessionSession
PresentationPresentationPresentationPresentation
ApplicationApplicationApplicationApplication
OSI Reference ModelOSI Reference ModelOSI Reference ModelOSI Reference Model TCP/IPTCP/IPTCP/IPTCP/IP
ApplicationApplication
TransportTransport
Data linkData link
PhysicalPhysical
7777
6666
5555
4444
3333
2222
1111
5555
4444
3333
2222
1111
Application Layer Overview
InternetInternet
TCP/IPTCP/IPTCP/IPTCP/IP
ApplicationApplication
TransportTransport
Data linkData link
PhysicalPhysical
File TransferFile Transfer - TFTP *- TFTP * - FTP *- FTP * - NFS- NFSE-mailE-mail - SMTP- SMTPRemote LoginRemote Login - Telnet *- Telnet * - rlogin *- rlogin *Network ManagementNetwork Management - SNMP *- SNMP *Name ManagementName Management - DNS *- DNS *
File TransferFile Transfer - TFTP *- TFTP * - FTP *- FTP * - NFS- NFSE-mailE-mail - SMTP- SMTPRemote LoginRemote Login - Telnet *- Telnet * - rlogin *- rlogin *Network ManagementNetwork Management - SNMP *- SNMP *Name ManagementName Management - DNS *- DNS *
* Used by the Router* Used by the Router* Used by the Router* Used by the Router
Transport Layer Overview
InternetInternet
TCP/IPTCP/IPTCP/IPTCP/IP
ApplicationApplication
TransportTransport
Data linkData link
PhysicalPhysical
Transmission ControlTransmission ControlProtocol (TCP)Protocol (TCP)Transmission ControlTransmission ControlProtocol (TCP)Protocol (TCP)
User DatagramUser DatagramProtocol (UDP)Protocol (UDP)User DatagramUser DatagramProtocol (UDP)Protocol (UDP)
Connection-Connection-orientedorientedConnection-Connection-orientedoriented
ConnectionlessConnectionlessConnectionlessConnectionless
Port Numbers
TransportTransportLayerLayerTransportTransportLayerLayer
FFTTPP
FFTTPP
21212121 23232323 25252525 53535353
TTEELLNNEETT
TTEELLNNEETT
SSMMTTPP
SSMMTTPP
DDNNSS
DDNNSS
TTFFTTPP
TTFFTTPP
SSNNMMPP
SSNNMMPP
RRIIPP
RRIIPP
69696969 69696969 520520520520
TCPTCPTCPTCP UDPUDPUDPUDP
ApplicationApplicationLayerLayerApplicationApplicationLayerLayer
PortPortNumberNumberPortPortNumberNumber
TCP Port Numbers
Host A Host Z
……..SourceSourcePortPort
Dest.Dest.PortPort
……..10281028 2323
SPSP DPDPDest. Port=23.
Send packet to myTelnet
application
Telnet Z
TCP Three WayHandshake/Open connection
Host A Host B
Send SYN(seq=100 ctl=SYN)Send SYN(seq=100 ctl=SYN)
1111
SYN receivedSYN received
SYN receivedSYN received
Send SYN(seq=300 ack=101 ctl=syn,ack)Send SYN(seq=300 ack=101 ctl=syn,ack)
Established(seq=101 ack=301 ctl=ack)Established(seq=101 ack=301 ctl=ack)
3333
2222
TCP Simple Acknowledgment
SenderSender ReceiverReceiver
Send 1Send 1Receive 1Receive 1
Send ACK 2Send ACK 2Receiver ACK 2Receiver ACK 2
Send 2Send 2
Receive 2Receive 2
Send ACK 3Send ACK 3Receiver ACK 3Receiver ACK 3
Send 3Send 3
Receive 3Receive 3
Send ACK 4Send ACK 4
Receiver ACK 4Receiver ACK 4
Window size = 1Window size = 1
TCP Sequence and Acknowledgement Numbers
SequenceSequence##
SourceSourcePortPort
Dest.Dest.PortPort
AcknowledgementAcknowledgement##
……..
I justI justsent #11.sent #11.
I just got #11,I just got #11,now I need #12now I need #12
10281028
SourceSource
2323 1010 11
Dest .Dest . Seq.Seq. AckAck
10281028
SourceSource
2323 1111 11
Dest .Dest . Seq.Seq. AckAck 2323
SourceSource
10281028 11 1111
Dest .Dest . Seq.Seq. AckAck
2323
SourceSource
10281028 22 1212
Dest .Dest . Seq.Seq. AckAck
TCP Simple Acknowledgment
SenderSender ReceiverReceiverWindow size = 3Window size = 3Send 1Send 1
Window size = 3Window size = 3Send 1Send 1
Window size = 3Window size = 3Send 1Send 1
Window size = 3Window size = 3Send 1Send 1
Window size = 3Window size = 3Send 1Send 1
Ack 3Ack 3Window size = 2Window size = 2
Ack 5Ack 5Window size = 5Window size = 5
Packet 3 isDropped
Packet 3 isDropped
Protocol Field
InternetInternetLayerLayer
InternetInternetLayerLayer
6666 17171717
IPIPIPIP
TransportTransportLayerLayer
TransportTransportLayerLayer
ProtocolProtocolNumberNumberProtocolProtocolNumberNumber
TCPTCPTCPTCP UDPUDPUDPUDP
Determines destination upper-layer protocol
Internet Layer Overview
ApplicationApplication
InternetInternet
TransportTransport
Data linkData link
PhysicalPhysical
DestinationDestinationUnreachableUnreachable
Echo (ping)Echo (ping)
OtherOther
DestinationDestinationUnreachableUnreachable
Echo (ping)Echo (ping)
OtherOther
ICMPICMP
Address Resolution Protocol
172.16.3.1
IP: 172.16.3.2 = ???IP: 172.16.3.2 = ???
I heard that broadcast.The message is for me.Here is my Ethernetaddress
I need theEthernet
address of176.16.3.2
172.16.3.2
IP: 172.16.3.2IP: 172.16.3.2Ethernet: 0800.0020.1111Ethernet: 0800.0020.1111
Map IP Ethernet Local ARP
Reverse - ARP
Ethernet: 0800.0020.1111 IP=???Ethernet: 0800.0020.1111 IP=???
I heard that broadcast.Your IP address is 172.16.3.25
What ismy IPaddress ?
Ethernet: 0800.0020.1111Ethernet: 0800.0020.1111IP : 172.16.3.25IP : 172.16.3.25
Map Ethernet IP
Assembling and Assembling and Cabling Network DevicesCabling Network Devices
Objectives
Upon completion of this chapter, you will be able to perform the following tasks:
• Identify and connect necessary components to enable connectivity between routers or switches
• Setup console connections between routers, switches and a terminal
LAN Physical Layers Implementations
• Physical layer implementations vary• Some implementations support multiple
physical media
PhysicalPhysicalPhysicalPhysical Eth
ern
etE
ther
net
Eth
ern
etE
ther
net
Data LinkData Link(MAC layer)(MAC layer)Data LinkData Link
(MAC layer)(MAC layer)
10B
ase2
10B
ase2
10B
ase2
10B
ase2
10B
ase5
10B
ase5
10B
ase5
10B
ase5
10B
aseT
10B
aseT
10B
aseT
10B
aseT
10B
aseF
10B
aseF
10B
aseF
10B
aseF
100b
aseT
X10
0bas
eTX
100b
aseT
X10
0bas
eTX
100b
aseF
X10
0bas
eFX
100b
aseF
X10
0bas
eFX
100b
aseT
410
0bas
eT4
100b
aseT
410
0bas
eT4
802.3802.3802.3802.3
DIXDIXStandardStandard
DIXDIXStandardStandard
802.3 Specifications802.3 Specificationsfor 10mb Ethernetfor 10mb Ethernet
802.3 Specifications802.3 Specificationsfor 10mb Ethernetfor 10mb Ethernet
802.3u Specifications802.3u Specificationsfor 100mb (Fast)for 100mb (Fast)EthernetEthernet
802.3u Specifications802.3u Specificationsfor 100mb (Fast)for 100mb (Fast)EthernetEthernet
Comparing Ethernet MediaRequirements
S Telecom
MaximumMaximumSegmentSegmentLengthLength
MaximumMaximumSegmentSegmentLengthLength
MediaMediaMediaMedia
10Base510Base510Base510Base5
50-ohm50-ohmcoax (thick)coax (thick)
50-ohm50-ohmcoax (thick)coax (thick)
10BaseT10BaseT10BaseT10BaseT
EIA/TIA CatEIA/TIA Cat3,4,5 UTP3,4,5 UTP
2 pair2 pair
EIA/TIA CatEIA/TIA Cat3,4,5 UTP3,4,5 UTP
2 pair2 pair
100BaseTX100BaseTX100BaseTX100BaseTX 100BaseFX100BaseFX100BaseFX100BaseFX
50-ohm50-ohmcoax (thick)coax (thick)
50-ohm50-ohmcoax (thick)coax (thick)
EIA/TIA CatEIA/TIA Cat3,4,5 UTP3,4,5 UTP
2 pair2 pair
EIA/TIA CatEIA/TIA Cat3,4,5 UTP3,4,5 UTP
2 pair2 pair
500 meter500 meter500 meter500 meter 100 meter100 meter100 meter100 meter 100 meter100 meter100 meter100 meter 400 meter400 meter400 meter400 meter
TopologyTopologyTopologyTopology BUSBUSBUSBUS StarStarStarStar StarStarStarStar Point-to-PointPoint-to-PointPoint-to-PointPoint-to-Point
ConnectorConnectorConnectorConnector AUIAUIAUIAUI ISO 8877ISO 8877(RJ-45)(RJ-45)
ISO 8877ISO 8877(RJ-45)(RJ-45)
ISO 8877ISO 8877(RJ-45)(RJ-45)
ISO 8877ISO 8877(RJ-45)(RJ-45)
Duplex media-Duplex media-interfaceinterfaceconnectorconnector(MIC) ST(MIC) ST
Duplex media-Duplex media-interfaceinterfaceconnectorconnector(MIC) ST(MIC) ST
BNC Connector
Barrel T TerminatorBarrel T Terminator
UTP Device
The RJ-45 ConnectorThe RJ-45 ConnectorThe RJ-45 ConnectorThe RJ-45 Connector
Wire PairWire PairT is TipT is TipR is RingR is Ring
Wire PairWire PairT is TipT is TipR is RingR is RingPinPinPinPin
Pair 2 T2Pair 2 T2
Pair 2 R2Pair 2 R2
Pair 3 T3Pair 3 T3
Pair 1 R1Pair 1 R1
Pair 1 T1Pair 1 T1
Pair 3 R3Pair 3 R3
Pair 4 T4Pair 4 T4
Pair 4 R4Pair 4 R4
Pair 2 T2Pair 2 T2
Pair 2 R2Pair 2 R2
Pair 3 T3Pair 3 T3
Pair 1 R1Pair 1 R1
Pair 1 T1Pair 1 T1
Pair 3 R3Pair 3 R3
Pair 4 T4Pair 4 T4
Pair 4 R4Pair 4 R4
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
UTP ImplementationStraight-through
Cable 10BaseT/Cable 10BaseT/100BaseT Straight-through100BaseT Straight-through
Cable 10BaseT/Cable 10BaseT/100BaseT Straight-through100BaseT Straight-through
Hub/SwitchHub/SwitchHub/SwitchHub/Switch Server/RouterServer/RouterServer/RouterServer/Router
Pin LabelPin LabelPin LabelPin Label
RD +RD +
RD -RD -
TD +TD +
NCNC
NCNC
TD -TD -
NCNC
NCNC
RD +RD +
RD -RD -
TD +TD +
NCNC
NCNC
TD -TD -
NCNC
NCNC
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
Pin LabelPin LabelPin LabelPin Label
O b g brO b g brO b g brO b g br
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
Straight-through CableStraight-through CableStraight-through CableStraight-through Cable
O b g brO b g brO b g brO b g brwo wb wg wbrwo wb wg wbrwo wb wg wbrwo wb wg wbr wo wb wg wbrwo wb wg wbrwo wb wg wbrwo wb wg wbr
Wires on cable endsWires on cable endsare in same orderare in same order
Wires on cable endsWires on cable endsare in same orderare in same order
1 81 81 81 8 1 81 81 81 8
UTP Implementation Crossover
Cable 10BaseT/Cable 10BaseT/100BaseT Crossover100BaseT Crossover
Cable 10BaseT/Cable 10BaseT/100BaseT Crossover100BaseT Crossover
Hub/SwitchHub/SwitchHub/SwitchHub/Switch Hub/SwitchHub/SwitchHub/SwitchHub/Switch
Pin LabelPin LabelPin LabelPin Label
RD +RD +
RD -RD -
TD +TD +
NCNC
NCNC
TD -TD -
NCNC
NCNC
RD +RD +
RD -RD -
TD +TD +
NCNC
NCNC
TD -TD -
NCNC
NCNC
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
Pin LabelPin LabelPin LabelPin Label
1 1
2 2
33
44
55
66
77
88
1 1
2 2
33
44
55
66
77
88
Crossover CableCrossover CableCrossover CableCrossover Cable
Some wires on cableSome wires on cableend are closedend are closed
Some wires on cableSome wires on cableend are closedend are closed
wo wg wb wbrwo wg wb wbr
w b g brw b g br
wo wg wb wbrwo wg wb wbr
w b g brw b g brO b g brO b g brO b g brO b g brwo wb wg wbrwo wb wg wbrwo wb wg wbrwo wb wg wbr
1 81 81 81 8 1 81 81 81 8RD +RD +
RD -RD -
TD +TD +
NCNC
NCNC
TD -TD -
NCNC
NCNC
RD +RD +
RD -RD -
TD +TD +
NCNC
NCNC
TD -TD -
NCNC
NCNC
Network Device
NetworkNetworkNetworkNetwork
Data LinkData LinkData LinkData Link
PhysicalPhysicalPhysicalPhysical
RouterRouter
HubHub
• Media typeMedia type• Connection typeConnection type• Signaling typeSignaling type
• Media typeMedia type• Connection typeConnection type• Signaling typeSignaling type
SwitchSwitch
BridgeBridge
• Physical addressPhysical address• Higher layer protocolHigher layer protocol• Network topologyNetwork topology• Frame sequencingFrame sequencing• Flow controlFlow control
• Physical addressPhysical address• Higher layer protocolHigher layer protocol• Network topologyNetwork topology• Frame sequencingFrame sequencing• Flow controlFlow control
• Logical addressLogical address• Define paths throughDefine paths through networknetwork• Interconnects Interconnects Multiple data linksMultiple data links
• Logical addressLogical address• Define paths throughDefine paths through networknetwork• Interconnects Interconnects Multiple data linksMultiple data links
Hubs Operate at Physical layer
A B C D
• All devices in the same collision domain• All devices in the same broadcast domain• Devices share the same bandwidth
PhysicalPhysical
Switches and Bridges Operateat Data Link Layer
• Each segment has its own collision domain• All segments are in the same broadcast domain
1 2 3 4
Data linkData link
OROR 1 2
Routers : Operate at the Network Layer
• Broadcast control• Multicast control• Optimal path
determination• Traffic management• Logical addressing• Connects to WAN
service
Cabling the Campus
• Determine the physical media used- 10mb or 100mb indicates what type of CAT cable is required
• Locating interface on the chassis- determine if one or both ports have an X
indicates if needed corssover straight-through cable
10 MbpsCat 3,4,5
Straight-through10 MbpsCat 3,4,5
Straight-through
10 MbpsCat 3,4,5
Crossover
100 MbpsCat 5
Straight-through
100 MbpsCat 5
Crossover
Operating andOperating andConfiguring a Network DeviceConfiguring a Network DeviceI. RouterI. Router
Objectives
Upon completion of this chapter, you will be able to perform the following tasks:
• Startup the Cisco router and observe the boot up processes• Provide an initial configuration for the switch and perform the
router’s initial setup configuration• Enable and identify the command modes in each network
device• Use the various help and command line-editing features of
each device’s user interface• Show and recognize fundamental technical details about each
network device
An Overview ofRouter Startup
• Find and check device hardware
• Find and load Cisco IOS software image
• Find and apply device configuration
External ConfigurationSources
Virtual terminal
PC or Unix Server
Web or NetworkManagementServer
Console portConsole port
Auxiliary portAuxiliary port
InterfaceInterface
• Configurations can come from many source
• Configurations will act in device memory
Cisco IOS User Interface Fundamental
• Uses a command line interface• Operations vary on different
internetworking devices• Type or paste entries in the
console command modes• Enter key instructs device to
parse and execute the command• Two primary EXEC modes are
user mode and privileged mode• Command modes have
distinctive prompts
Cisco IOS software EXEC
• There are two main EXEC modes for entering commands
First modes:First modes:First modes:First modes:
User ModeUser Mode
• Limited examination of routerLimited examination of router
• Command Prompt is Command Prompt is hostname>hostname>
User ModeUser Mode
• Limited examination of routerLimited examination of router
• Command Prompt is Command Prompt is hostname>hostname>
The Cisco IOS software EXEC (cont.)
Second modes (and most commonly usedSecond modes (and most commonly usedSecond modes (and most commonly usedSecond modes (and most commonly used
Privileged (or enabled) ModePrivileged (or enabled) Mode
• Detailed examinated of roouterDetailed examinated of roouter
• Enables configuration and debuggingEnables configuration and debugging
• Prequisite for other configuration modes Prequisite for other configuration modes
• Command prompts on the device Command prompts on the device hostname#hostname#
Privileged (or enabled) ModePrivileged (or enabled) Mode
• Detailed examinated of roouterDetailed examinated of roouter
• Enables configuration and debuggingEnables configuration and debugging
• Prequisite for other configuration modes Prequisite for other configuration modes
• Command prompts on the device Command prompts on the device hostname#hostname#
Router Internal Component
RAM
ROM
Flash
NVRAM
Config register
Interface
Router Internal Component
RAM
ROM
Flash
NVRAM
Config register
Interface
Loading the IOS from Flash
Flash
RAM
IOS
IOS
Show flash
Console
Show flash Command
Router>show flashshow flash
System flash directory:File Length Name/status 1 9524828 c2500-js-l.113-9.T[9524892 bytes used, 7252324 available, 16777216 total]16384K bytes of processor board System flash (Read ONLY)
Router>
Loading the Configuration
RAM
IOS
NVRAM
ConfigConfigConfigConfig ConfigConfigConfigConfig
Console
Showrunning-config
ShowStartup-config
Setup utility
• Load and execute config from NVRAM• If no config in NVRAM, enter setup mode
Show running and showstartup Command
Router#show running-configBuilding configuration...
Current configuration:!version 11.3service timestamps debug uptimeservice timestamps log uptimeno service password-encryption!hostname Router!
Router#show startup-configUsing 376 out of 32762 bytes!version 11.3service timestamps debug uptimeservice timestamps log uptimeno service password-encryption!hostname Router!!!
Sources of Configuration
RAM NVRAM
ConfigConfigConfigConfig ConfigConfigConfigConfig
Config term
• NVRAM• Terminal• TFTP server• Erase Start
Copy running startup
Copy startup running
Console
TFTPserver
copy tftp run
copy run tftp
copy tftp start
Config start tftpBlank
000000000000
Erasestart
Cisco IOS File Systems andDevices
RAM
Flash
NVRAM
System:
flash:
TFTPserver
nvram:
tftp:
Operating andOperating andConfiguring a Network DeviceConfiguring a Network DeviceI. SwitchI. Switch
How Switches Learn HostLocations
SK Telecom
• Initial MAC address table is empty
MAC address table
A B
C D
0260.8c01.1111
0260.8c01.2222 0260.8c01.4444
0260.8c01.3333E0
E2
E1
E3
How Switches Learn HostLocations
• Station A sends a frame to Station C
• Switch caches station A MAC address to port E0 by learning
• The frame from station A to station C is flooded out to all ports except port E0(unknown unicasts are flooded)
MAC address table
A B
C D
0260.8c01.1111
0260.8c01.2222 0260.8c01.4444
0260.8c01.3333E0
E2
E1
E3
E0:0260.8c01.1111
How Switches Learn HostLocations
• Station D sends a frame to Station C
• Switch caches station D MAC address to port E3 by learning the source A address of data frames
• The frame from station D to station C is flooded out to all ports except port E3 (unknown unicasts are flooded)
MAC address table
A B
C D
0260.8c01.1111
0260.8c01.2222 0260.8c01.4444
0260.8c01.3333E0
E2
E1
E3
E0:0260.8c01.1111E3:0260.8c01.4444
How Switches Filter Frames
• Station A sends a frame to Station C
• Destination is known, frame is not flooded
MAC address table
A B
C D
0260.8c01.1111
0260.8c01.2222 0260.8c01.4444
0260.8c01.3333E0
E2
E1
E3
Broadcast and Multicast Frames
• Station D sends a broadcast or multicast frame
• Broadcast and multicast frames are flooded to all ports other than the originating port
MAC address table
A B
C D
0260.8c01.1111
0260.8c01.2222 0260.8c01.4444
0260.8c01.3333E0
E2
E1
E3
E0:0260.8c01.1111E2:0260.8c01.2222
E1:0260.8c01.3333
E3:0260.8c01.4444
Redundant Topology
• Redundant topology eliminates single points of failure
• Redundant topology cause broadcast storms, multiple frame copies, and MAC address table instability problems
Station/host X Router Y
Segment 1
Segment 2
Broadcast Storms
Switches continues to propagate broadcast traffic over and over
Station/host X Router Y
Segment 1
Segment 2
BroadcastBroadcast
MANAGING YOUR NETWORK MANAGING YOUR NETWORK ENVIRONMENT (LAN NETWORK)ENVIRONMENT (LAN NETWORK)
Objectives
Upon completion of this chapter, you will be able to perform the following tasks:
• Gather information by network test(ping, trace,telnet)
• Gather information by using show command in Cisco Router
• Create a simple network diagram to document the network
LAN Network Environment
• Network components
BranchOffice
Floor 1
Floor 2
HQ
Sever Farm
Campus
Telnet
• Telnet operation
Router> telnet 203.227.91.1
Trying 203.227.91.1 ... OpenUser Access Verification
Password: ****Cisco>
Router> telnet 203.227.91.1
Trying 203.227.91.1 ... OpenUser Access Verification
Password: ****Cisco>
Ping
Cisco
Router 203.227.90.1
Cisco 203.227.91.1
RouterEcho Reply
Echo Requestping
Router> ping 203.229.91.1Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 203.227.91.1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
Router> ping 203.227.91.1Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 203.227.91.1, timeout is 2 seconds:.....Success rate is 0 percent (0/5)
Router> ping 203.229.91.1Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 203.227.91.1, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
Router> ping 203.227.91.1Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 203.227.91.1, timeout is 2 seconds:.....Success rate is 0 percent (0/5)
Trace
Seoul
Pusan131.108.33.5
Daegu131.108.16.2
Daejun131.108.12.3
Seoul# trace 131.108.33.5 (Pusan)Type escape to abort.Tracing the route to 131.108.33.5 (Pusan)
1 131.108.12.3 (Daejun) 100 msec 40 msec 10 msec2 131.108.16.2 (Daegu) 40 msec 20 msec 8 msec3 131.108.33.5 (Pusan) 10 msec 8 msec 4 msec
Seoul#
Seoul# trace 131.108.33.5 (Pusan)Type escape to abort.Tracing the route to 131.108.33.5 (Pusan)
1 131.108.12.3 (Daejun) 100 msec 40 msec 10 msec2 131.108.16.2 (Daegu) 40 msec 20 msec 8 msec3 131.108.33.5 (Pusan) 10 msec 8 msec 4 msec
Seoul#
Router Check Command
• Show interface serial command
• Show interface ethernet command
• Show process cpu command
Home LAN /SOHO 사용자를 위한LAN 구축 실무 ( 부록 )
Home LAN /SOHO 사용자를 위한LAN 구축 실무 ( 부록 )
Ⅰ. Network 란 ?
Ⅱ. LAN Card 없이 간단하게 연결하기
Ⅲ. 기본 Network 구축장비
Ⅳ. Network 구축 순서
Ⅴ. Windows 95/98 의 Network 환경설정
Ⅵ. 자원 공유 Model
Ⅶ. LAN 구축 Model
Ⅷ. 초고속 Internet Service 의 선택
Network 란 ?
Network 를 하면 무엇이 좋아지는가 ? 자원 공유
• 저장장치• 출력장치• 인터넷 접속 라인• 팩스모뎀
비용절감 신뢰성 향상
Network 기본 지식 LAN 과 WAN LAN 의 구성방식
· Peer -To -Peer
· Client -Server
LAN 의 표준 , 이더넷 (Ethernet) Network 운영체제 Protocol
Network 란 ?
Cable 직접 연결 Serial( 직렬 ) 연결
Parallel( 병렬 ) 연결
무선 적외선 통신 (IrDA) 연결
USB 연결 단순 데이터 교환
유사 Network 환경 구축
USB LAN Card
LAN Card 없이 간단하게 연결하기
기본 Network 구축장비
• 명칭 : RG58 A/U 10Base-2• 전송속도 : 10Mbps• 연결거리 : 185M• Network 양 끝단에 Terminator 설치
LAN Cable - BNC
기본 Network 구축장비
Barrel T Terminator
BNC 커넥터의 종류
LAN Cable - BNC
BNC T- 커넥터 연결
기본 Network 구축장비
LAN Cable- BNC
BNC Terminator 연결
기본 Network 구축장비
LAN Cable - BNC
• 명칭 : RJ-45
10/100Base-T• 전송속도 : 10/100Mbps• 연결거리 : 100M• 3 대 이상의 PC 연결시 허브 필요
기본 Network 구축장비 LAN Cable - UTP(Unshielded Twisted Pair)
• 명칭 : RJ-45
10/100Base-T• 전송속도 : 10/100Mbps• 연결거리 : 100M• 3 대 이상의 PC 연결시 허브 필요
기본 Network 구축장비 LAN Cable - UTP(Unshielded Twisted Pair)
• BUS BUS 방식방식•TPO/COMBO
• 연결속도• 가격
기본 Network 구축장비
LAN Cable (Network Adapter/NIC)
• BUS BUS 방식방식•TPO/COMBO
• 연결속도• 가격
기본 Network 구축장비
LAN Cable (Network Adapter/NIC)
• BUS 방식• TPO/COMBOTPO/COMBO
• 연결속도• 가격
TPO(TP-Only)
기본 Network 구축장비
LAN Cable (Network Adapter/NIC)
• BUS 방식•TPO/COMBOTPO/COMBO
• 연결속도• 가격
COMBO (UTP, AUI, BNC)
기본 Network 구축장비
LAN Cable (Network Adapter/NIC)
• BUS 방식• TPO/COMBO
• 연결속도연결속도• 가격
100Mbps Fast Ethernet Adapter
기본 Network 구축장비
LAN Cable (Network Adapter/NIC)
• BUS 방식• TPO/COMBO
• 연결속도• 가격가격
기본 Network 구축장비
LAN Cable (Network Adapter/NIC)
Hub 의 종류1. 1. 더미더미 (Dummy) Hub(Dummy) Hub
2. 스위치 (Switch)Hub
기본 Network 구축장비
허브 (Hub)
기본 Network 구축장비
Hub 의 종류1. 더미 (Dummy) Hub
2. 2. 스위치스위치 (Switch)Hub(Switch)Hub
허브 (Hub)
기본 Network 구축장비
Hub 의 선택•몇대 정도의 컴퓨터를 연결할 것인가 ?•더미허브 ? 스위치 허브?•10Mbps? 100Mbps?•저가형 ? 고가형 ?
허브 (Hub)
기본 Network 구축장비
Hub 의 선택•몇대 정도의 컴퓨터를 연결할 것인가 ?•더미허브 ? 스위치 허브?•10Mbps? 100Mbps?•저가형 ? 고가형 ?
허브 (Hub)
기본 Network 구축장비
Hub 의 선택•몇대 정도의 컴퓨터를 연결할 것인가 ?•더미허브 ? 스위치 허브?•10Mbps? 100Mbps?•저가형 ? 고가형 ?
허브 (Hub)
기본 Network 구축장비
Hub 의 선택•몇대 정도의 컴퓨터를 연결할 것인가 ?•더미허브 ? 스위치 허브?•10Mbps? 100Mbps?•저가형 ? 고가형 ?
허브 (Hub)
Network 와 Network 간을 연결하는 인터네트
워킹 (Internetworking) 장비 소규모 Network 환경에서는 Software 적으로
라우터의 구현 , 비용 절감
기본 Network 구축장비
라우터 (Router)
Network 구축 순서
LAN Card LAN Card 설치와 환경설정설치와 환경설정 (( 드라이버 설치드라이버 설치 ))
Cable Cable 작업작업 , Hub, Hub 와 연결와 연결
Network Network 환경설정환경설정 (( 프로토콜프로토콜 , , 컴퓨터이름컴퓨터이름 ))
공유 자원공유 자원 , , 사용자 설정사용자 설정
LAN Card 설치와 환경설정 (Driver 설치 )
문제해결 - Ping 테스트
c:\ping 127.0.0.1
Network 구축 순서
문제해결 - Driver- Update
Network 구축 순서
LAN Card 설치와 환경설정 (Driver 설치 )
문제해결 - 자원충돌 해결
Network 구축 순서
LAN Card 설치와 환경설정 (Driver 설치 )
Cable 제작1. Cable2. RJ45 커넥터3. 보호 부트4. RJ45 케이블링 툴
Cable 작업 , Hub 와 연결
Network 구축 순서
Cable 제작1. Cable2. RJ45 커넥터3. 보호 부트4. RJ45 케이블링 툴
Network 구축 순서
Cable 작업 , Hub 와 연결
Cable 제작1. Cable2. RJ45 커넥터3. 보호 부트4. RJ45 케이블링 툴
Network 구축 순서
Cable 작업 , Hub 와 연결
UTP 다이렉트 Cable 배선방식
Network 구축 순서
Cable 작업 , Hub 와 연결
UTP 크로스 Cable 배선방식
Network 구축 순서
Cable 작업 , Hub 와 연결
Hub 와 연결
Network 구축 순서
Cable 작업 , Hub 와 연결
• Microsoft Network 클라이언트• 전화접속 어댑터• LAN Card Driver ( 설치한 LAN Card 종류마다 틀림 )• TCP/IP• IPX/SPX( 스타크레프트 등의 네트워크 게임을 위해 필요 )• Microsoft Network 파일 / 프린터 공유 프로그램 ( 공유 설정을 위해 필요 )
Window 95/98 의 Network 환경설정 Network 환경설정 ( 프로토콜 , 컴퓨터이름)
IP 주소 (IP Address) 와 서브네트 마스크 (Subnet Mask) 지정
TCP/IP 환경 설정
IP 주소 10.xxx .xxx .xxx
서브네트마스크 255. 0 . 0 . 0
•클래스 A 비공인 IP 주소
Window 95/98 의 Network 환경설정
IP 주소 (IP Address) 와 서브네트 마스크 (Subnet Mask) 지정
TCP/IP 환경 설정
IP 주소 192.168.xxx .xxx
서브네트마스크 255 .255. 0 . 0
•클래스 B 비공인 IP 주소
Window 95/98 의 Network 환경설정
IPX/SPX 프로토콜 IPX/SPX 프로토콜
기타 프로토콜 환경 설정
NetBEUI 프로토콜 NetBEUI 프로토콜
Window 95/98 의 Network 환경설정
공유프로그램 설치
Window 95/98 의 Network 환경설정
컴퓨터 이름 짓기
Window 95/98 의 Network 환경설정
자원 공유 Model
저장장치 ( 드라이브 / 폴더 ) 의 공유
프린터 공유
자원 공유 Model
Internet 접속라인 공유
자원 공유 Model
팩스 모뎀 공유
자원 공유 Model
LAN 구축 Model
1 : 1 연결
LAN 구축 Model
Hub 를 이용한 3 대 이상의 연결
LAN 구축 Model
전화 접속 네트워킹으로 원격지 접속
LAN 구축 Model
인터넷으로 전용선 환경에 원격지 접속
LAN 구축 Model
Window - DOS PC 연결
LAN 구축 Model
Window - 매킨토시 연결
LAN 구축 Model
Internet 사용이 많지 않은 SOHO LAN 구축 Model
UTP 케이블
5-8 포트 10 Mbps 허브향후 확장을 고려해 PC 대수보다한두포트 여유제품 사용
프린터병렬 연결
10 Mbps 공유 Ethernet
인터넷
모뎀 /ISDN 을 이용한인터넷 접속 공유기능으로 저렴하게 인터넷 환경 구축
모뎀 /ISDN
R
각 PC 에 표준 10 Mbps 랜카드 설지
LAN 구축 Model
Web Server 운영을 위한 전용선 환경의 SOHO LAN 구축 Model
UTP 케이블
5-8 포트 10 Mbps 허브향후 확장을 고려해 PC 대수보다한두포트 여유제품 사용
프린터병렬 연결
10 Mbps 공유 Ethernet
인터넷
R
각 PC 에 표준 10 Mbps 랜카드 설지
라우터
56/128 K 전용회선
LAN 구축 Model
ADLS/Cable MODEM 등을 활용한 초고속 Internet 멀티미디어 SOHO LAN 구축 Model
R
10/100 Mbps 고속랜카드
케이블 /ADSL 모뎀
100Mbps 스위치 허브각 노드마다 최대의 대역폭을 보장하는 스위치 허브의 사용으로 전송량이많은 경우도 성능저하 없이 고속의 전송이 가능하게 함
프린터병렬 연결
100 Mbps Fast Ethernet
인터넷
R
인터넷연결공유 PC케이블모뎀 /ADSL모뎀등과 연결하는랜카드를 인터넷과직접 연결된 PC 에장착 , 즉 이 PC 에는랜카드가 2개 장착되어 있음 .
10 Mbps 랜카드
ISDN (Integrated Service Digital Network)
초고속 Internet Service 의 선택
ISDN (Integrated Service Digital Network)
초고속 Internet Service 의 선택
ISDN (Integrated Service Digital Network)
초고속 Internet Service 의 선택
ISDN (Integrated Service Digital Network)
초고속 Internet Service 의 선택
Cable MODEM
초고속 Internet Service 의 선택
초고속 Internet Service 의 선택
Cable MODEM
ADSL (Asymmetric Digital Subscriber Line)
초고속 Internet Service 의 선택
ADSL (Asymmetric Digital Subscriber Line)
초고속 Internet Service 의 선택
전용선
전용선 도입업체전용선 도입업체 ISPISP
도메인 결정
공인 IP 주소 부여
도메인 신청 대행
설치와 테스트
개 통
장비 구입 ( 대여 )라우터 /DSU/CSU
등
전용선 신청
초고속 Internet Service 의 선택