2570 - Configuring DHCP Services in BloxOne DDI
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Scenario
The DHCP service needs to be enabled on two BloxOne Hosts before we begin to configure DHCP services. Then we need to plan Global Options and configure an initial DHCP Config Profile for the DHCP clients to use.
Estimated Completion Time
15 to 20 minutes
Prerequisites
Administrative access to the CSP
Lab 2801: Deploying BloxOne Hosts
Course References
2170 DHCP Services
Tasks
Enabling a DHCP service Instances for BloxOne Hosts 'oph1' and 'oph2'
Creating an Option Group for Techblue NYC Branch
Configuring the DHCP Config Profile for Techblue NYC Branch
Applying the DHCP Config Profile to a Service Instance
Task 1: Enabling DHCP service instances for BloxOne Host oph1 and oph2
A DHCP service instance needs to be created for two BloxOne Hosts, oph1.techblue.net and oph2.techblue.net. Name the services Techblue DHCP service 1 and Techblue DHCP service 2 per the table below:
Table 2570-1
Host IP Address | Host Name | Service Name |
|---|---|---|
10.100.0.110 | oph1.techblue.net | Techblue DHCP service 1 |
10.200.0.110 | oph2.techblue.net | Techblue DHCP service 2 |
Task 2: Creating an Option Group for Techblue NYC Branch
We'll need an IPv4 Option Group to offer specific options to any clients getting an IP address from the Techblue NYC Branch service instance. Create an IPv4 Option Group named Techblue NYC Branch using the specifications from the following table:
Table 2570-2
Type | Space | Name (code) | Value(s) |
|---|---|---|---|
Option | DHCPv4 | domain-name-servers (6) | 10.100.0.110,10.200.0.110 |
Option | DHCPv4 | domain-name (15) | techblue.net |
Option | DHCPv4 | ntp-servers (42) | 10.100.0.10 |
Option | DHCPv4 | routers (3) | 172.31.101.1 |
Task 3: Configuring the DHCP Config Profile for Techblue NYC Branch
We want to use our new Option Group with the Techblue NYC Branch DHCP clients, and we want to be able to designate specific settings for the Techblue NYC Branch DHCP service that may differ from the Global Configuration. We can do this with a DHCP Config Profile. Create a new DHCP Config Profile named Techblue NYC Branch with a short lease time of 4 minutes to account for some DHCP client testing. We also want to allow leases for unknown clients. For DHCP Options, we want to use the IPv4 DHCP Option Group we created called Techblue NYC Branch.
Task 4: Applying the DHCP Config Profile to a Service Instance
Our DHCP Config Profile has not been applied to any DHCP services yet. Apply the DHCP Config Profile to the Service Instances we started, Techblue DHCP service 1 (but not Techblue DHCP service 2 yet).
Solutions
Task 1 Solution: Enabling DHCP service instances for BloxOne Host oph1 and oph2
On the Jump-Desktop, open your CSP browser window and navigate to Manage → Infrastructure → Services
Click on Create Service and choose DHCP from the drop-down
Enter a Name: Techblue DHCP service 1
Click on Select Host and locate the BloxOne Host with the IP address 10.100.0.110 (this should be oph1.techblue.net)
Select the Host and click on the Select button on the right
Click Next and confirm this is the right IP Address of the Host
Click Finish and then Save & Close
Repeat all steps above, but use the name Techblue DHCP service 2 and locate the Host with the IP address 10.200.0.110 (oph2.techblue.net).
Refresh the page until you see each service indicates Online.
When starting, the Service Status will change from Stopped to Online. It may also indicate Error in this process. It may take 3 to 5 minutes for the service to show as Online. If the service remains stopped, attempt to restart it by selecting the checkbox for the service and choosing Restart from the Service Actions drop-down menu.
Task 2 Solution: Creating an Option Group for Techblue NYC Branch
In your CSP browser window navigate to Manage → IPAM/DHCP
Select the Option Groups tab
Click Create and choose the IPv4 Option Group selection
Give the Option Group a name: Techblue NYC Branch
Configure the Domain Name Servers DHCP option:
Under DHCP OPTION CODES, click Add
From the Type drop-down menu, select Option
From the Space drop-down menu, select dhcp4
From the Name drop-down menu, select domain-name-servers (6)
Specify the Value:
10.100.0.110, 10.200.0.110
Configure the Domain Name DHCP option:
Under DHCP OPTION CODES, click Add
From the Type drop-down menu, select Option
From the Space drop-down menu, select dhcp4
From the Name drop-down menu, select domain-name (15)
Specify the Value:
techblue.net
Configure NTP Servers DHCP option:
Under DHCP OPTION CODES, click Add
From the Type drop-down menu, select Option
From the Space drop-down menu, select dhcp4
From the Name drop-down menu, select ntp-servers (42)
Specify the Value:
10.100.0.10
Configure routers DHCP option:
Under DHCP OPTION CODES, click Add
From the Type drop-down menu, select Option
From the Space drop-down menu, select dhcp4
From the Name drop-down menu, select routers (3)
Specify the Value:
172.31.101.1
Click Save & Close
Task 3 Solution: Configuring the DHCP Config Profile for Techblue NYC Branch
In your CSP browser window, navigate to Manage → IPAM/DHCP. Select the DHCP Config Profiles tab
Click the Create DHCP Config Profile button
Give the DHCP Config Profile a name: Techblue NYC Branch
Under DHCP Configuration, expand the Leases section
For our lab environment, we want changes to show quickly, so configure the Lease Time as 4 minutes (you will need to click the Override toggle to override the default setting).
Enable/check Allow Leases for Unknown Clients (you will need to click the Override toggle to override the default setting)
Collapse the Leases section and expand the DHCP Options section
Under IPV4 DHCP Option Codes, click Add
From the Type drop-down menu, select Option Group
From the Name drop-down menu, select Techblue NYC Branch
Click Save & Close
Task 4 Solution: Applying the DHCP Config Profile to a Service Instance
Using the CSP browser window, navigate to Manage → IPAM/DHCP
Select the DHCP Config Profiles tab
Click the menu icon next to the TechBlue NYC Branch DHCP Config Profile, select Edit
Under SERVICE INSTANCES, click Add
Select the service instance Techblue DHCP service 1 from the list and click Select (Note: Do not add Techblue DHCP service 2 yet, we will add this later)
Click Save & Close