Lab 05‐1 - LPouliot/Junior-Spring-NET-330-01-Network-Design GitHub Wiki
Lab 5-1: Small Enterprise-Class Lab
Pre-Lab:
Open Packet Tracer and go to - Options - Preferences - Miscellaneous
Set Auto File Backup Interval to 1 minute
Save your workspace as NET-330-Lab-5-1-name
- You need to save the file before auto backup starts working
Design
Plan IP Address/Subnet scheme:
Use 10.22.0.0
Create a table for the IP subnets that includes
- Network Address, Subnet Mask, VLAN ID, Host Ranges, Default Gateway (Router) and DHCP pool ranges
You need to include the following subnets:
- Default Subnet (VLAN 1) used for networking services such as DHCP and DNS (150 IP's)
- "Clinic" VLAN used for Dr.'s and Nurses (300 IP's)
- "Visitor" VLAN used by patients and guests (300 IP's)
- "Office" VLAN used for administrative staff (300 IP's)
- "Counseling" VLAN used by mental health practice (150 IPs)
Troubleshooting
/23 networks are picky!
- They do not like odd numbers in their IP addresses
- EX:
BAD - 10.22.3.0
GOOD - 10.22.2.0
Full Subnet Table
| VLAN Number | VLAN Name | Hosts Needed | Network Address | Netmask | Router Addresses | Host Ranges | CIDR |
|---|---|---|---|---|---|---|---|
| 100 | Clinic | 300 | 10.22.0.0 | 255.255.254.0 | 10.22.0.1 | 10.22.1.2-254 | /23 |
| 200 | Visitor | 300 | 10.22.2.0 | 255.255.254.0 | 10.22.2.1 | 10.24.1.2-254 | /23 |
| 300 | Office | 300 | 10.22.4.0 | 255.255.254.0 | 10.22.4.1 | 10.26.1.2-254 | /23 |
| 400 | Counseling | 150 | 10.22.6.0 | 255.255.255.0 | 10.22.6.1 | 10.28.1.2-255 | /24 |
| 1 | Deafult 1 | 150 | 10.22.7.0 | 255.255.255.0 | 10.22.7.1 | 10.22.0.2-255 | /24 |
Design the network in Packet Tracer
Create Border/Distribution, Core, and Edge boundaries
NOTE: we will be using 1 Distribution area in this lab for simplicity - and the single Distribution Switch/Router is also the Border Router
Edge: North Wing switch, South Wing switch, and Counseling Center switch (South Wing):
- use 2960's
Core: North-Core, South-Core, and Data-Center-Core switches
- use 2960's
- Add 2 servers to the core - one will be for DNS and one for DHCP
Border/Distribution: Hospital Router
- Use 3560 Multilayer Switch
Screenshot of Packet Tracer Workspace
Build:
1. Configure Hospital Router
Enable Routing
(config)#ip routing
Add VLANs to Router
Needed VLANS
- (VLAN interfaces act as the default gateway for the Distribution Area VLANs)
| VLAN Number | VLAN Name | Netmask | Router Addresses |
|---|---|---|---|
| 100 | Clinic | 255.255.254.0 | 10.22.0.1 |
| 200 | Visitor | 255.255.254.0 | 10.22.2.1 |
| 300 | Office | 255.255.254.0 | 10.22.4.1 |
| 400 | Counseling | 255.255.255.0 | 10.22.6.1 |
| 1 | Deafult 1 | 255.255.255.0 | 10.22.7.1 |
#config terminal
(config)#vlan ##
(config-vlan)#name (name)
(config)#interface vlan ##
(config-if)# no shutdown
(config-if)#ip address (Address) (MAC/Mask)
Add IP addresses to VLAN interfaces
Remember VLAN 1 will be "down" by default on the Router - so need to use the "no shutdown" command
To save the current configuration:
Switch# copy running-configuration startup-configuration or
Switch# copy run start
Switch# show run
Configure trunk ports to connect to core switches
- First Three Interfaces
Router>enable
#config terminal
(config-if)#int fa0/(num)
(config-subif)#switchport trunk encapsulation dot1q
switchport mode trunk
2. Configure North-Core and South-Core Switch
Add VLANS
Configure trunk ports to connect router and edge switch
- All fa/01 connections to the router are trunked
- All fa/02 connections with the Edge Switches are trunked
Configure North Wing and South Wing Edge Switch
North Wing:
- 1
- 100
- 200
- 300
(config)#interface vlan ##
(config-if)# no shutdown
South Wing:
- 1
- 100
- 200
- 300
(config)#interface vlan ##
(config-if)# no shutdown
Configure trunk port to connect core switch
- All fa/01 connections to the Core switches are trunked
Assigning more than one port at once:
Switch(config)# interface range FastEthernet 0/#-#
Switch(config)# switchport access vlan ###
Assign 6 ports to Clinic (100)
- 3 - 8
Assign 4 ports to Visitor (200)
- 9 - 12
Assign 6 ports to Office (300)
- 13 - 18
To save the current configuration:
Switch# copy running-configuration startup-configuration or
Switch# copy run start
4. Configure Data-Center-Core switch
Only uses VLAN 1 (so minimal config required)
(config)#interface vlan 1
(config-if)# no shutdown
Connect Data-Center-Core to Router (Trunk not required on either side)
- Connected from fa/01 to fa/02
5. Configure DHCP Server
Assign DHCP server proper address
On: VLAN 1
IP: 10.22.7.2
Mask: 255.255.255.0
Default Gateway: 10.22.7.1
Create DHCP pools for the client VLANs
- serverPool is the Default Pool and cannot be removed.
- You will use this pool for VLAN 1 Management
Default:
Default G: 10.22.7.1
DNS: 0.0.0.0
Start IP: 10.22.7.20
Sub Mask: 255.255.255.0
Clinic:
Default G: 10.22.0.1
DNS: 0.0.0.0
Start IP: 10.22.0.20
Sub Mask: 255.255.254.0
Visitor:
Default G: 10.22.2.1
DNS: 0.0.0.0
Start IP: 10.22.2.20
Sub Mask: 255.255.254.0
Office:
Default G: 10.22.4.1
DNS: 0.0.0.0
Start IP: 10.22.4.20
Sub Mask: 255.255.254.0
Remember to turn DHCP Service "On" in the PT services window
Go to the Services tab and enable DHCP
Connect server to Data Center Core switch
To get DHCP working - don't forget "Helper"
-
To get DHCP broadcasts from your user VLANs, you need to tell the router to forward them to your DHCP server.
-
This is done with the "ip helper-address" vlan interface configuration
-
Use "ip helper-address" to provide the IP address of the DHCP server
DHCP IP - 10.22.7.2
Go into the configuration on your Laptops and change the Gateway from static to DHCP
SUBMISSION: Screenshot of a PC with proper DHCP address (config page in PT)
SUBMISSION Screenshot of PC's on different subnets pinging one another
6. Configure clients in North Wing Edge
You should now have DHCP working so it should be easy
Make sure connecting to the correct ports for the VLAN
Switch(config)# interface range FastEthernet 0/#-#
Switch(config)# switchport access vlan ###
Assign 6 ports to Clinic (100)
- 3 - 8
Assign 4 ports to Visitor (200)
- 9 - 12
Assign 6 ports to Office (300)
- 13 - 18
SCREENSHOT: North PC pinging South PC
7. Configure DNS Resource to help
Assign appropriate IP address to the DNS server
On: VLAN 1
IP: 10.22.7.3
Mask: 255.255.255.0
Default Gateway: 10.22.7.1
Connect to Data-Center-Core
Enable DNS services
Go to the Services tab and enable DNS
Create A Records for your two servers:
- ns.station-number-word.com (e.g. ns.twelve.com)
Uses the DNS IP address
- dhcp.station-number-word.com (e.g. dhcp.twelve.com)
Uses the DHCP IP address
Update DHCP server to assign DNS server to clients
- Enter DHCP and include 10.22.7.3 in the DNS Server section
Verify that clients can resolve server IP's
- Click DHCP on and off