2527 - Creating IPv4 authoritative reverse-mapping zones in NIOS

Scenario

Your team has recently been given the responsibility to manage the name entries in the network 172.16.0.0/16. Please make the appropriate configurations in the Grid.

Estimate Completion Time

• 15 to 20 minutes

Credentials

Requirements

• Administrative DNS access to the Grid

• (Optional) Administrative IPAM access to the Grid

Course References

• 2010: Configuring NIOS IPAM and Discovery

• 2023: Configuring NIOS DNS Zones

Lab Initiation

Access jump-desktop

Once the lab is deployed, you can access the virtual machines required to complete this lab activity. To initiate the lab, click on the jump-desktop tile and login to the Linux UI:

Username: training

Password: infoblox

Initiate lab

To initiate the lab, double-click the Launch Lab icon on the Desktop.

Choose the lab number from the list and click OK.

After clicking OK, you will see a pop-up message with a brief description of the lab task. If the description looks correct, click Yes to continue lab initiation.

Lab initiation will take a couple of minutes to finish.

Once complete, you will see another pop-up message with the login credentials and the URL for the Grid Manager’s User Interface. Note that the credentials may differ from those from prior labs.

Tasks

1. Creating an IPv4 authoritative reverse-mapping zone.

2. (Bonus) Creating a corresponding IPv4 network in IPAM.

Task 1: Creating an IPv4 authoritative reverse-mapping zone

Create 172.16.0.0/16 as an authoritative reverse-mapping zone, served by the name server group Internal NSG.

Bonus Task: Creating both reverse-mapping zone and network

If you are using the Grid for both DNS and IPAM, you should create a corresponding network in IPAM that matches the reverse-mapping zone in DNS. There is a way to create both the authoritative IPv4 reverse-mapping zone and the IPv4 network if they happen to be a certain size (such as /16 or /24). Create an IPAM network object for 192.168.0.0/16 and check the option during creation to automatically create the IPv4 reverse-mapping zone.

Solutions

Task 1 Solution: Creating an IPv4 authoritative reverse-mapping zone

1. Navigate to Data Management → DNS → Zones

2. Click the Add dropdown menu and select Authoritative Zone

3. At Step 1 of 6, select the radio button for Add an authoritative IPv4 reverse-mapping zone

4. Click Next

5. At Step 2 of 6, select the radio button for IPv4 Network

6. For the network, enter 172.16.0.0

7. Change the Netmask to 16

8. For Comment, enter TechBlue Branch Networks

9. Click Next

10. At Step 3 of 6, select the radio button for Use this name server group

11. Select Name Server Group Internal NSG

12. Click Save & Close

13. The Zones table now displays the new 16.172.in-addr.arpa authoritative zone