Lab $19$

DHCP $($Dynamic Host Configuration Protocol$)$

After you complete each step, put a $$ or $$x$$ in the completed box

In all the labs we have completed so far, we have manually $($statically$)$ assigned the configuration details to the host devices.

In this lab, we will automatically configure the host devices using two different options.

Option A: DHCP Allocation through a server

$1.$ Setup the following topology in packet tracer.

$2.$ We will now configure the DHCP service on the server.

Click on the server $($which I just renamed DHCP Server$),$ click on the Services tab, then select the DHCP and make sure it is $$Turned On$$

Enter $$Spooky$$ as the Pool Name.

In the start IP address boxes enter: $192\mathrm{.}168\mathrm{.}10\mathrm{.}2($this will be the starting address of the pool of IP addresses$)$ with SM: $255\mathrm{.}255\mathrm{.}255\mathrm{.}0$

Maximum number of users: $10$

You can configure a default gateway and DNS address if you wish but not required for this section of the lab.

Click $$Add$$ and the entry will appear in the window.

Click $$Save$$

Insert a screenshot of your configured DHCP service window.

$3.$ We will now configure the DHCH server to act as a host device.

On the DHCP server, click the Fast Ethernet option, The Fast Ethernet interface may be on a different tab. Make sure the IP address is on the same subnet as the pool of addresses you set above e$.$g$.192\mathrm{.}168\mathrm{.}10\mathrm{.}25/24$ would work ok$.$

$4.$ We allocate the PC IP Addresses via DHCP from the from the configured DHSP server.

Click Mulder and select the IP configuration option on the Desktop Tab

Static is ticked by default and the address settings should be blank

Click the $$DHCP$$ option and a request to the server will be made

The computer will be allocated IP configuration details from the server.

Insert a screenshot of your configured Mulder below

Note: Cisco Packet Tracer is very temperamental when it comes to assigning the default gateway via DHCP from the server. Most times it will not allocate the default gateway $($very annoying to be honest$).$

Due to this annoyance, Option B $($below$)$ is a more reliable option when carrying out DHCP in Packet Tracer.

Configure Sully in the same way and now Mulder and Scully can ping each other.

Insert a screenshot of your successful ping

Option B: DHCP Allocation through a router

$1.$ Setup the following topology in Packet Tracer

$2.$ We will now configure the $192\mathrm{.}168\mathrm{.}80\mathrm{.}0$ network first on router and configure the DHCP for that network first via the following commands. Before we start the commands, make sure to check what Fast Ethernet port is connected to the $192\mathrm{.}168\mathrm{.}80\mathrm{.}0$ network.

Note: DHCP is enabled by default on a router but to shut it down, you can use the command $$no service dhcp$,$ not all routers will allow you to shut it down.

Note: Disney is name of the pool of addresses, and we also excluded the first $5$ addresses from

the pool. These addresses will not be handed out as they will be used things like printers, servers

that have static IP addresses.

$3.$ We allocate the PC IP Addresses via DHCP configured on the router.

Click Mickey Mouse use the DHCP to automatically obtain its IP configurations

Insert a screenshot of your configured Mickey Mouse below

$4.$ You now need to configure the DHCP for the other network $(192\mathrm{.}168\mathrm{.}90\mathrm{.}0)$ and use DHCP to configure the host devices.

Follow the same steps that we did to configure the $192\mathrm{.}168\mathrm{.}80\mathrm{.}0$ network.

You can come up with your own Pool Name $$ feel free to be creative.

Insert a screenshot of your router commands below

$5.$ Now you have configured the DHCP on the router.

Configure both hosts on the network via DHCP$.$

Insert a screenshot of a successfully configured Snow White below.

$6.$ The entire network is now configured. All host devices should now be able to communicate.

Insert a screenshot of a successful ping between Donal Duck and Dwarf No $6$ below.