The following limits apply only for networking resources managed through the classic deployment model per subscription.
| Resource | Default limit | Maximum limit |
|---|---|---|
| Virtual networks | 50 | 100 |
| Local network sites | 20 | contact support |
| DNS Servers per virtual network | 20 | 100 |
| Private IP Addresses per virtual network | 4096 | 4096 |
| Concurrent TCP or UDP flows per NIC of a virtual machine or role instance | 500K | 500K |
| Network Security Groups (NSG) | 100 | 200 |
| NSG rules per NSG | 200 | 400 |
| User defined route tables | 100 | 200 |
| User defined routes per route table | 100 | 400 |
| Public IP addresses (dynamic) | 5 | contact support |
| Reserved public IP addresses | 20 | contact support |
| Public VIP per deployment | 5 | contact support |
| Private VIP (ILB) per deployment | 1 | 1 |
| Endpoint Access Control Lists (ACLs) | 50 | 50 |
The following limits apply only for networking resources managed through Azure Resource Manager per region per subscription.
| Resource | Default limit | Maximum Limit |
|---|---|---|
| Virtual networks | 50 | 1000 |
| Subnets per virtual network | 1000 | 10000 |
| Virtual network peerings per Virtual Network | 10 | 50 |
| DNS Servers per virtual network | 9 | 25 |
| Private IP Addresses per virtual network | 4096 | 8192 |
| Private IP Addresses per network interface | 256 | 1024 |
| Concurrent TCP or UDP flows per NIC of a virtual machine or role instance | 500K | 500K |
| Network Interfaces (NIC) | 350 | 20000 |
| Network Security Groups (NSG) | 100 | 5000 |
| NSG rules per NSG | 200 | 500 |
| IP addresses and ranges specified for source or destination in a security group | 2000 | 4000 |
| Application security groups | 200 | 500 |
| Application security groups per IP configuration, per NIC | 10 | 20 |
| IP configurations per application security group | 1000 | 4000 |
| Application security groups that can be specified within all security rules of a network security group | 50 | 100 |
| User defined route tables | 100 | 200 |
| User defined routes per route table | 100 | 400 |
| Public IP addresses - dynamic | (Basic) 60 | contact support |
| Public IP addresses - static | (Basic) 20 | contact support |
| Public IP addresses - static | (Standard) 20 | contact support |
| Point-to-Site Root Certificates per VPN Gateway | 20 | 20 |
| Resource | Default limit | Maximum Limit |
|---|---|---|
| Load Balancers | 100 | 1000 |
| Rules per resource, Basic | 150 | 250 |
| Rules per resource, Standard | 1250 | 1500 |
| Rules per IP configuration | 299 | 299 |
| Frontend IP configurations, Basic | 10 | contact support |
| Frontend IP configurations, Standard | 10 | 600 |
| Backend pool, Basic | 100, single Availability Set | - |
| Backend pool, Standard | 1000, single VNet | contact support |
| HA Ports, Standard | 1 per internal frontend | - |
Contact support in case you need to increase limits from default.