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An administrator has recently deployed an NC2 on azure cluster, but does not have connectivity back to the on-premises environment. The administrator would like to start working on configuring the new cluster.
What is the best way to get access to Prism Central?
Jump Host Deployment: A Jump Host provides a secure method to access the NC2 environment when direct connectivity is unavailable. Deploying it in an external VNet allows flexibility in managing network access and security.
VNet Peering: By peering the external VNet (where the Jump Host is deployed) with the VNet containing Prism Central, the administrator can establish a communication pathway. This setup enables secure and controlled access to Prism Central from the Jump Host.
Azure VNet Peering Documentation
Nutanix NC2 Configuration and Access Guide
The cluster has the following configuration:
A Transit VPC exists as Default, but is additionally configured with a overlay-external-subnet-nonat overlay subnet
The ERP for the Transit VPC is 10.1.1.0/25
A User VPC exists named User_VPC_Prod
The ERP for the User VPC is 10.1.1.0/24
Outbound and inbound routes have been configured
A User VM NO-NAT subnet has been configured in the User VPC
The administrator has successfully created a VM and added the NIC associated with the NO-NAT subnet, but is not able to communication with other resources.
Which option will resolve this issue?
In this scenario, the issue arises from overlapping IP address ranges between the Transit VPC and the User VPC. Here's a detailed breakdown:
Understanding ERPs (Elastic Routing Prefixes):
The ERP for the Transit VPC is 10.1.1.0/25, which covers IP addresses from 10.1.1.0 to 10.1.1.127.
The ERP for the User VPC is 10.1.1.0/24, which covers IP addresses from 10.1.1.0 to 10.1.1.255.
IP Address Overlap:
Since 10.1.1.0/25 is a subset of 10.1.1.0/24, there is a significant overlap in the IP address ranges of these two ERPs.
This overlap can cause routing issues because the same IP address range is being used in both VPCs, leading to ambiguity in routing and communication.
Communication Issue:
When a VM in the User VPC tries to communicate with other resources, the network cannot accurately determine the correct route due to the overlapping IP address ranges.
This overlap prevents proper routing and results in the VM being unable to communicate with other resources as intended.
Resolution:
To resolve this issue, the ERPs must be in different CIDR ranges. This means the IP address ranges for the Transit VPC and the User VPC should not overlap.
For example, if the Transit VPC uses 10.1.1.0/25, the User VPC could use a different range such as 10.1.2.0/24 or any other range that does not overlap with 10.1.1.0/25.
By ensuring that the ERPs are in different CIDR ranges, the network can properly route traffic between the VPCs without any conflicts or ambiguities, thereby enabling the VM in the User VPC to communicate with other resources effectively.
An administrator is seeking help with an ongoing NC2 issue. After reaching out to Nutanix support, the administrator is introduce to the NC2 specialist who can help troubleshoot the problem.
How can the administrator verify that the NC2 specialist has access to the necessary organizations?
To verify that the NC2 specialist has access to the necessary organizations for troubleshooting the issue, the administrator should:
Confirm that the Support Authorization on the organization is set to Full Access. This ensures that the NC2 specialist has the required permissions to access the necessary resources and perform the necessary actions to resolve the issue.
Providing login credentials or adding the specialist as an admin user is not recommended due to security and privacy concerns. Ensuring the specialist is assigned the correct RBAC role is another valid approach but confirming the support authorization directly ensures they have the needed access.
Reference
Nutanix Support and Services
A nutanix User VPC named Servers has a subnet named Tier1:
Servers: 10.0.0.0/20
Tier1: 10.0.0.0/25
Tier is using floating IPS to allow inbound traffic to the web servers that are hosted for a payroll system.
The company requires that the Network Security Group allow other Native Azure instances running in subnet AD (10.20.0.0/24) in the Prism Central VNet to be able to contact the web servers.
Which statement is true regarding this company requirement?
Flow Gateway Network Security Group (NSG): NSGs control the traffic flow to and from network interfaces associated with VMs and other resources. Configuring the NSG correctly is crucial for ensuring that required traffic is allowed.
Internal NIC Configuration: To allow Native Azure instances in the Prism Central VNet (10.20.0.0/24) to access the web servers in the Tier1 subnet, the internal NIC of the Flow Gateway must be configured to allow traffic from 10.20.0.0/24. This ensures that inbound traffic from these instances is permitted and properly routed to the web servers.
Azure Network Security Group Documentation
Nutanix Flow Gateway Configuration Guide
An administrator is tasked with allowing inbound connectivity for a user VM that resides on a NAT network. The ...... communicating successfully with other VMs in the NAT network.
The cluster has the following characteristics
A Transit VPC exists
* A User VPC exists
* A NAT subnet has been created
* 25 floating IP addresses are in use by other VMs
* Routes have been configured
When the administrator attempts to assign a floating IP address to the VM, none are available.
What is the reason for this?
Floating IP Address Limitation: The cluster already has 25 floating IP addresses in use by other VMs. If the administrator cannot assign a floating IP address to the new VM, it is because the pool of available floating IPs is exhausted.
Requesting Additional Floating IPs: To resolve this issue, the administrator needs to request additional floating IP addresses to be allocated to the NAT subnet. This will ensure that there are enough IP addresses available for all VMs requiring inbound connectivity.
Nutanix Networking Configuration Guide
Azure IP Address Management Documentation
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