chapter 7 implementing ip addressing services
DESCRIPTION
TRANSCRIPT
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE I Chapter 6 1
Implementing IP Addressing Services
Accessing the WAN – Chapter 7
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 2
Objectives Configure DHCP in an enterprise branch network
Configure NAT on a Cisco router
Configure new generation RIP (RIPng) to use IPv6
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 3
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 4
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 5
Configure DHCP in an Enterprise Branch Network Describe the differences between BOOTP and DHCP
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 6
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 7
Configure DHCP in an Enterprise Branch Network Describe how to configure a Cisco router as a DHCP
client
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 8
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 9
Configure DHCP in an Enterprise Branch Network Describe how to configure a Cisco router as a DHCP
client using SDM
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 10
Configure DHCP in an Enterprise Branch Network Describe how to troubleshoot a DHCP configuration
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 11
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 12
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 13
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 14
Configure NAT on a Cisco Router Describe how to configure static NAT to conserve IP
address space in a network
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 15
Configure NAT on a Cisco Router Describe how to configure dynamic NAT to conserve IP
address space in a network
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 16
Configure NAT on a Cisco Router
Describe how to configure NAT Overload to conserve IP address space in a network
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 17
Configure NAT on a Cisco Router Describe how to configure port forwarding
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 18
Configure NAT on a Cisco Router Describe how to verify and troubleshoot NAT and NAT
overload configurations
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 19
Configure New Generation RIP (RIPng) to use IPv6 Explain the need for IPv6 to provide a long-term
solution to the depletion problem of IP address
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 20
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 21
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 22
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 23
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 24
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 25
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 26
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 27
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 28
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 29
Summary
Dynamic Host Control Protocol (DHCP)This is a means of assigning IP address and other configuration information automatically.
DHCP operation–3 different allocation methods
•Manual
•Automatic
•Dynamic
–Steps to configure DHCP
•Define range of addresses
•Create DHCP pool
•Configure DHCP pool specifics
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 30
Summary
DHCP RelayConcept of using a router configured to listen for DHCP messages from DHCP clients and then forwards those messages to servers on different subnets
Troubleshooting DHCP–Most problems arise due to configuration errors
–Commands to aid troubleshooting
•Show ip dhcp
•Show run
•debug
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 31
Summary Private IP addresses
–Class A = 10.x.x.x
–Class B = 172.16.x.x – 172.31.x.x
–Class C = 192.168.x.x
Network Address Translation (NAT)–A means of translating private IP addresses to public IP addresses
–Type s of NAT
•Static
•Dynamic
–Some commands used for troubleshooting
•Show ip nat translations
•Show ip nat statistics
•Debug ip nat
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 32
Summary
IPv6–A 128 bit address that uses colons to separate entries
–Normally written as 8 groups of 4 hexadecimal digits
Cisco IOS Dual Stack–A way of permitting a node to have connectivity to an IPv4 & IP v6 network simultaneously
IPv6 Tunneling–An IPV6 packet is encapsulated within another protocol
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 33
Summary
Configuring RIPng with IPv61st globally enable IPv6
2nd enable IPv6 on interfaces on which IPv6 is to be enabled
3rd enable RIPng using either
ipv6 rotuer rip name
ipv6 router name enable
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© 2006 Cisco Systems, Inc. All rights reserved. Cisco PublicITE 1 Chapter 6 34