Addressing Design Last Update 2012.02.07 1.1.0 Copyright 2011-2014 Kenneth M. Chipps Ph.D. 1.
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Transcript of Addressing Design Last Update 2012.02.07 1.1.0 Copyright 2011-2014 Kenneth M. Chipps Ph.D. 1.
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Addressing DesignLast Update 2012.02.07
1.1.0
Copyright 2011-2014 Kenneth M. Chipps Ph.D. www.chipps.com
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Objectives
Copyright 2011-2014 Kenneth M. Chipps Ph.D. www.chipps.com
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• To discuss network addressing design
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IP Address Planning
• The first step in planning IP addressing is to determine the size of the network
• Consider the following– How many locations will there be– How many devices may there be– What are the requirements for each location– What subnet size for each location– What type of addresses are available
• Public or privateCopyright 2011-2014 Kenneth M. Chipps Ph.D.
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IP Address Planning
• Growth of 10 to 20 percent should be allowed for
• Here is an example of a multisite plan
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IP Address Planning
Copyright 2011-2014 Kenneth M. Chipps Ph.D. www.chipps.com
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What Range to Use
• What address range should be used• Here is a good approach as suggested on
nanog.org during an exchange on bogan filters
• Darden, Patrick S. wrote– …pick a network from the appropriate sized
Private Networking ranges, then apply a well thought out scheme to the section of IP addresses you chose
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What Range to Use
– E.g. 10.150.x.y/16 as their network– X could be physical positioning, and Y could
be purposive in nature– 10.150.0.0 as basement, 10.150.1.0 as first
floor, 10.150.2.0 as second floor, etc. 1-20 as switches/routers, 21-50 as servers and static workstations, 51-100 as printers, and 101--200 as DHCP scope for PCs, and 201-254 for remote login DHCP scope (vpn, dialup, etc.)
Copyright 2011-2014 Kenneth M. Chipps Ph.D. www.chipps.com
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Example Address Plans
• Here are two sample address plans along these same lines
• These are from a October 2013 white paper from Global Knowledge by Raymond Dooley
• There is one for IPV4 and one for IPV6
Copyright 2011-2014 Kenneth M. Chipps Ph.D. www.chipps.com
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IPV4 Address Plan
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IPV4 Address Plan
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IPV6 Address Plan
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IPV6 Address Plan
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Private v Public
Copyright 2011-2014 Kenneth M. Chipps Ph.D. www.chipps.com
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Summarization
• Summarization should be designed into the network at appropriate locations
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Figure 6-8
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Figure 6-10
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Address Block Assignment
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Static v Dynamic Addressing
• Networks of any size should use dynamic assignment via DHCP servers
• However certain devices require static address such as– Network management network and devices– Servers– Printers– All modules of the Enterprise Edge
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Figure 6-15
Copyright 2011-2014 Kenneth M. Chipps Ph.D. www.chipps.com
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Figure 6-17
Copyright 2011-2014 Kenneth M. Chipps Ph.D. www.chipps.com
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