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!

Date post:	10-Jul-2015
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Configure DHCP Server and DHCP-Relay

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