Veeam Support Knowledge Base
Error: "Virtual lab supports maximum of 9 networks."

Error: "Virtual lab supports maximum of 9 networks."

KB ID:	4353
Product:	Veeam Backup & Replication \| 5.0 \| 6.1 \| 6.5 \| 7.0 \| 8.0 \| 9.0 \| 9.5 \| 10 \| 11 \| 12 \| 12.1 \| 12.2
Published:	2022-09-27
Last Modified:	2023-09-06

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Challenge

When configuring a SureBackup Virtual Lab for a VMware vSphere environment, attempting to add more than 9 Isolated Networks or configure more than 9 Isolated vNIC adapters will cause the following error to be shown:

Virtual lab supports maximum of 9 networks.

Cause

The Virtual Lab Appliance is a Virtual Machine, and Virtual Machines can only have a maximum of 10 Virtual NICs.

One of the ten possible Virtual NICs is assigned to the production network to allow the Virtual Lab Appliance to communicate with the Veeam Backup & Replication server, leaving nine vNICs available for assignment to the isolated environment.

Solution

You can assign only up to 9 isolated networks per virtual lab. If the environment necessitates creating a Virtual Lab with more than 9 Isolated Networks, instead create multiple Virtual Labs and appropriately assign SureBackup jobs to those Virtual Labs.

More Information

Prior to Veeam Backup & Replication 12, the error message shown was:

Virtual lab supports maximum of 9 networks by default.
If you need to add more networks, please contact support.

Contrary to the pop-up error message wording, there is no way to bypass this limit.

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