> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nebius.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Virtual Networks quotas and constraints

## Quotas

Virtual Networks has quotas on the number of networking resources.

For details on what quotas are and how to manage them, see [Quotas in Nebius AI Cloud](/overview/quotas).

| Quota name                                                       | Default value per [region](/overview/regions) |
| ---------------------------------------------------------------- | --------------------------------------------- |
| Total number of allocations                                      | 1000                                          |
| Total number of occupied public IPv4 addresses                   | 3                                             |
| Total number of networks                                         | 50                                            |
| Total number of pools                                            | 50                                            |
| Total number of routes                                           | 300                                           |
| Total number of route tables                                     | 30                                            |
| Total number of subnets                                          | 50                                            |
| Total number of [security groups](/vpc/security-groups/overview) | 200                                           |
| Total number of security rules                                   | 1000                                          |

## Constraints

Certain Virtual Networks resources have technical constraints that can't be changed directly.

| Constraint name                                                            | Value |
| -------------------------------------------------------------------------- | ----- |
| [Security groups](/vpc/security-groups/overview) associated with a network | 128   |
| Security groups assigned to a VM's network interface                       | 8     |
| Security rules in a security group                                         | 60    |
| CIDR blocks in a security rule                                             | 8     |
| Ports in a security rule                                                   | 8     |