Configure DHCP Server and DHCP-Relay

NETWORK ADMINISTRATION
DHCP Server & DHCP Relay-Agent
2013-2015
PASSERELLES NUMERIQEUS CAMBODIA
Street 371 Phum Tropeang Chhuk (Borey Sorla), Sangkat Tek Thia Khan Sek Sok P.O. Box 511 Phnom Penh, Cambodia

PASSERELLESNUMERIQUES CAMBODIA NETWORK ADMINISTRATION
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CONTENTS
LAB Instruction ............................................................................................................................... 2
Windows .......................................................................................................................................... 2
Install DHCP service ...................................................................................................................... 5
Create DCHP Scope .................................................................................................................... 12
Exclude IP address amount 10 IP addresses.............................................................................. 17
Configure DHCP Option.............................................................................................................. 18
IP address Reservation ............................................................................................................... 26
Deny Client by filter Mac address .............................................................................................. 28
Create New scope for LAN-Client .............................................................................................. 31
Show DHCP audit log file ............................................................................................................ 39
Suse Linux ...................................................................................................................................... 40
Adding more NICs and Assign IP address .............................................................. 40
Install DHCP Relay Service ............................................................................................ 47
Configure DHCP Relay Service ..................................................................................... 48
Let client request IP address ........................................................................................ 48
Make sure between LAN client and Windows Server can: ........................... 50

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LAB INSTRUCTION
 DHCP Server: Computer which functions as server(s) provide network configurations automatically to client such as IP address, subnet mask, default, gateway, domain name, DNS server, etc.
WINDOWS
 LAN Server
 Network Address: 192.168.1.0/24
 192.168.1.1 Router/Default Gateway
 192.168.1.10 DNS Server
 192.168.1.2 – 192.168.1.254 Address pool/scope
 192.168.1.10-192.168.1.20 Address Exclusive
 LAN Client
 Network address: 172.16.120.0/24
 172.16.120.1 Router/Default Gateway
 192.168.1.10 DNS Server
 172.16.120.3 – 172.16.120.254 Address pool/scope
 172.16.120.10 – 172.16.120.20 Address Exclusive

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 Assigned IP address
 To configure IPv4 for static addressing
 Click Start, click Control Panel, click Network and Internet, click Network and Sharing Center and then click Change Adapter Settings (ncpa.cpl=windows key+r)
 Right-click the connection to which you want to add a static IP address and then click Properties.
 Acknowledge the UAC dialog and then double-click Internet Protocol Version 4 (TCP/IP/IPv4).
 Click Use the following IP address, and do one of the following:
 For a local area connection, in IP address, Subnet mask, and Default gateway, type the IP address, subnet mask, and default gateway addresses.

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*Note: After assigned IP address, we could completed the DNS+AD on this Server. And then we ought to install and configure DHCP as picture below: INSTALL DHCP SERVICE
- Click Start, click Administrative Tools, click Server Manager,
- click Add Roles, click Next, check DHCP server, and then click Next.

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CREATE DCHP SCOPE * A scope is an administrative grouping of IP addresses for computers on a subnet that use the Dynamic Host Configuration Protocol (DHCP) service. -To create a new scope in the DHCP console (launched from Start -> All Programs -> Administrative Tools -> DHCP)
-Right click on IP V4 and click new scope

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EXCLUDE IP ADDRESS AMOUNT 10 IP ADDRESSES
- Click Address Pool. Right-click Address Pool, and then click New Exclusion Range.

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- In Add Exclusion, in Start IP address, type the IP address that is the first IP address in the exclusion range.
- in End IP address, type the IP address that is the last IP address in the exclusion range, and then click Add. And then Click Close.
CONFIGURE DHCP OPTION
- Scope Options
* configure some scope option there are:
-Router/Gateway

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-Name Server
-DNS Server and WIN Server
-Right click on scope options and then click on configure options
-Configure Router or Gateway

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-Configure DNS Server and Name Server

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- Server Options
-Right click on Server option and then click on the configure options
configure some server option there are:
-Router/Gateway
-Name Server
-DNS Server and WIN Server

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-

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IP ADDRESS RESERVATION -DHCP reservations provide a mechanism by which IP addresses may be permanently assigned to a specific client based on the MAC address of that client - Right click on Reservations and choose New Reservation...
-Type the reservation name: ex: Lenovo Manager

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-Input the specific IP address that want client use : 192.168.1.9
-Input the MAC address of PC manager: ex: 00-0C-29-D1-62-23

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DENY CLIENT BY FILTER MAC ADDRESS
Filter for mac address

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-Let’s client test by release

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CREATE NEW SCOPE FOR LAN-CLIENT
 Right click on IPv4 and then click on new scope

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SHOW DHCP AUDIT LOG FILE
 Go to view the DHCP log file by using type eventvwr in RUN and Enter

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SUSE LINUX
 DHCP Relay-Agent: The DHCP Relay-Agent (dhcprelay) allows for the relay of DHCP and BOOTP reques from a subnet with no DHCP Server on it to one or more DHCP servers on other subnets. ADDING MORE NICS AND ASSIGN IP ADDRESS
 Added a NICs(Network Interface Card and assign IP address for DHCP relay):

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 Assigned IP address by using command yast lan
- A network VMnet 3 for DHCP LAN Client
- A network VMnet 4 for DHCP LAN Server

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-Restart Network
=> Restart service by using rcnetwork restart

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INSTALL DHCP RELAY SERVICE
a. install DHCP server packet by using zipper install –y dhcrelay
 Restart DHCP Relay

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CONFIGURE DHCP RELAY SERVICE
-Go to configure DHCP Relay-Agent file by vim /ect/sysconfig/dhcrelay
LET CLIENT REQUEST IP ADDRESS

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MAKE SURE BETWEEN LAN CLIENT AND WINDOWS SERVER CAN:
- Nslookup

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- Ping
 I would like to ping from client to server
 Below is the IP client
 Below is the IP server
 So I would like to ping from server to client
The End!

Configure DHCP Server and DHCP-Relay

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