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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE I Chapter 6 1 Cisco Certified Network Associate CCNA 640-802 Access the WAN Asst.Prof. It-arun Pitimon itarun.p@cpe.rmutt.ac.th
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 2 Agenda Services in a Converged WAN Point-to-Point Protocol Frame Relay Enterprise Network Security Access Control Lists Providing Teleworker Services Implementing IP Addressing Services
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 3 SERVICES IN A CONVERGED WAN
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 4 Describe How ECNM Provides Integrated Services over an Enterprise Network Explain the purpose and function of WANs
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 5 Modules in the Enterprise Architecture The Cisco Enterprise Architecture consists of modules representing focused views that target each place in the network. Each module has a distinct network infrastructure with services and network applications that extend across the modules.
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 6 Example topology
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 7 Describe the Key WAN Technology Concepts Describe WAN functions in terms of the OSI Reference Model
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 8 Describe the Key WAN Technology Concepts Describe the key WAN data link layer protocols used in today’s Enterprise WAN networks
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 9 Select the Appropriate WAN Technology to meet ECNM Requirements List the various options for connecting subscribers to the WAN
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 10 SERIAL POINT TO POINT LINKS POINT-TO-POINT PROTOCOL (PPP)
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 11 DTE and DCE
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 12 HLDC Frame Format
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 13 Describe the Fundamental Concepts of Point-to-Point Serial Communication Explain when and how to configure HDLC encapsulation on a router
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 14 Describe Point-to-Point Concepts Describe PPP in terms of its use in WAN links
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 15 PPP architecture
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 16 PPP Configuration Options
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 17 FRAME RELAY
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 18 Describe the Fundamental Concepts of Frame Relay Technology Describe how Frame Relay is used to provide WAN services to the Enterprise
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 19 Describe the Fundamental Concepts of Frame Relay Technology Describe how Frame Relay uses virtual circuits to carry packets from one DTE to another
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 20 Describe the Fundamental Concepts of Frame Relay Technology Describe the types of topologies that are used for implementing Frame Relay in different environments
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 21 Describe the Fundamental Concepts of Frame Relay Technology Describe how a router attached to a Frame Relay network uses LMI status messages and inverse ARP queries to map VCs to layer 3 network IP Addresses
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 22 Configure a Basic Frame Relay PVC Configure a basic Frame Relay PVC on a router serial interface
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 23 Configure a Basic Frame Relay PVC Configure a static Frame Relay map
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 24 Describe Advanced Concepts of Frame Relay Technology Explain the reachability issues associated with the Frame Relay NBMA topology
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 25 Describe Advanced Concepts of Frame Relay Technology Describe how to implement bandwidth control in the Frame Relay technology
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 26 Configure an Advanced Frame Relay PVC Explain the steps to configure point-to-point subinterfaces on a physical interface
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 27 ACCESS CONTROL LISTS
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 28 Explain How ACLs are Used to Secure a Medium-Size Enterprise Branch Office Network Explain how a packet filter allows or blocks traffic
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 29 Explain How ACLs are Used to Secure a Medium-Size Enterprise Branch Office Network Use a flow chart to show how ACLs operate
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 30 Configure Standard ACLs in a Medium- Size Enterprise Branch Office Network Explain how to configure a standard ACL
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 31 Configure Extended ACLs in a Medium- Size Enterprise Branch Office Network Describe how to configure extended ACLs
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 32 Configure Standard ACLs in a Medium- Size Enterprise Branch Office Network Describe how to use wildcard masks with ACLs
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 33 Explain How ACLs are Used to Secure a Medium-Size Enterprise Branch Office Network Describe where ACLs should be placed in a network
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 34 Configure Extended ACLs in a Medium- Size Enterprise Branch Office Network Describe how to apply an extended ACL to an interface
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 35 Configure Standard ACLs in a Medium- Size Enterprise Branch Office Network Explain how to create a named ACL
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 36 IMPLEMENTING IP ADDRESSING SERVICES
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 37 Configure DHCP in an Enterprise Branch Network Describe the function of DHCP in a network
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 38 Configure DHCP in an Enterprise Branch Network Describe how DHCP dynamically assigns an IP address to a client
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 39 Configure DHCP in an Enterprise Branch Network Describe how to configure a DHCP server
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 40 Configure DHCP in an Enterprise Branch Network Explain how DHCP Relay can be used to configure a router to relay DHCP messages when the server and the client are not on the same segment
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 41 Configure NAT on a Cisco Router Describe the operation and benefits of using private and public IP addressing
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 42 Configure NAT on a Cisco Router Explain the key features of NAT and NAT overload
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 43 Configure NAT on a Cisco Router Explain the advantages and disadvantages of NAT
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 44 Configure New Generation RIP (RIPng) to use IPv6 Describe the format of the IPv6 addresses and the appropriate methods for abbreviating them
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 45 Configure New Generation RIP (RIPng) to use IPv6 Explain the various methods of assigning IPv6 addresses to a device
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 46 Configure New Generation RIP (RIPng) to use IPv6 Describe the transition strategies for implementing IPv6
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 47 Configure New Generation RIP (RIPng) to use IPv6 Describe how Cisco IOS dual stack enables IPv6 to run concurrently with IPv4 in a network
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 48 Configure New Generation RIP (RIPng) to use IPv6 Describe the concept of IPv6 tunneling
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 49 Configure New Generation RIP (RIPng) to use IPv6 Describe how IPv6 affects common routing protocols, and how these protocols are modified to support IPv6
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 50 Configure New Generation RIP (RIPng) to use IPv6 Explain how to configure a router to use IPv6
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 51 Configure New Generation RIP (RIPng) to use IPv6 Explain how to configure and verify RIPng for IPv6
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 52 Configure New Generation RIP (RIPng) to use IPv6 Explain how to verify and troubleshoot IPv6
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 53
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