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Transcript of P09
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C222: Internet Server Technologies
Team Four
Chan | Javier
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IP IssuesDHCPLap ExperienceTestingConflict ManagementSecurity IssueSolutionReferences
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Key IssueNumber of potential clients4 Servers80 PCs200 Laptops
IP Addresses available 200.77.2.2 to 200.77.2.254 IP addresses
Number of Clients GREATER THAN
IP Addresses available
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DHCP servers Centrally manage IP addresses and
provide it to clients automatically.
Key Advantage
We can configure client network settings at a server instead of configuring them on each client computer.
Remember the high turnover rate!
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Step OneAdding Server Role
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Step Two
Selecting Server Role: DHCP Server
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Step ThreeDisplays a summary of what will be done when setting as a
DHCP Server
1. Install DHCP Server
2. Run New Scope Wizard
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Step FourNew Scope
Wizard
Collects the consecutive range of possible addresses that the DHCP server can lease to clients.
If we cancel the New Scope Wizard, the DHCP server role will still be installed but the server will not be able to assign the IP addresses
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Step Five Adding a Scope name for
identification
Adding a description for the
scope
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Step Six Assigning a range of consecutive IP
addresses that the scope distributes
Specifying the subnet mask
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Step SevenAdding addresses
or range of address that we do not want
the server to distribute
One address
Range of addresses
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Step EightLease duration
specifies how long client can use an IP address from this
scope
The duration should be typically equal to the average time the computer is connected to the network.
PC LongerLaptops Shorter
Applicable to today’s problem?
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Step Nine New Scope Wizard Completed
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Step Ten
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Authorize DHCP Server
Activate Scope
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Client connected to domain with ‘Obtain
an IP address automatically’
selected.
DHCP Server Stats249
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Testing exclusionsSet a new range of addresses to
be excluded
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New IP address 200.77.2.6
Exclusion range(200.77.2.2 to
200.77.2.5)
245
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the amount of time that the DHCP server grants to the DHCP client permission to use a particular IP address.
A typical server allows its administrator to set the lease time.
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Connection Status Support Tab Details
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Enable Address Conflict DetectionThe number you type determines how many times the DHCP server tests an IP address before leasing it to a client.
Value between Zero to Six
DHCP console tree Select the DHCP Server Action Properties Advanced Tab
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DHCP is an unauthenticated protocol Anyone connected to the network can
obtain a lease. Not required to provide credentials!
Recommendation
Ensure unauthorized persons do not have physical or wireless access to the network
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DHCP Server
Servers Manually assigned IP(Static IP as they might need to provide services and access for the clients)
PCS Manually assigned IP or longer lease period(Likely to be permanently connected to the physical network)
Laptops Dynamic IP address with short lease period(Since Stock Traders might not need to be permanently connected to the network. Hence, releasing whenever the IP is not in use and assigning to new Stock Traders will help in recycling the usage of the limited IP addresses)
Not forgetting..
Conflict Management & Security Issues
ReservationsFor static IPs
Ensures that a DHCP client is always
assigned the same IP address.
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http://www.windowsdevcenter.com/pub/a/windows/2004/04/13/DHCP_Server.html
http://www.tcpipguide.com/free/t_DHCPServerConflictDetection.htm
http://technet2.microsoft.com/windowsserver/en/library/4950c160-33e0-4c7a-a0c8-ece07458699b1033.mspx?mfr=true
http://www.microsoft.com/windowsserver2003/technologies/dhcp/default.mspx
http://www.windowsitpro.com/Articles/ArticleID/13467/13467.html?Ad=1
http://www.dhcp-handbook.com/dhcp_faq.html http://technet2.microsoft.com/windowsserver/en/
library/dd966939-921b-4ce4-9dca-b33e533a58381033.mspx?mfr=true
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That’s all!
Thank you!