Question

What is the maximum number of Network Security Groups rules that can be created in the NSG?

Answer 1

there is the top limit of 100 Nsg

Answer 2

The maximum of 400 NSG rules can be created in NSG.

Explanation:

• The NSG has a collection or list of ‘Access Control List’ (ACL) rules which is used for denying or allowing network traffic to VM instances in a Virtual based network.  

• These NSGs could be associated with individual VM instances or subnets within provided subnets. When these NSGs are associated with a subnet, the ‘ACL rules’ have to apply to all of the ‘VM instances’ in that subnet.  

• In addition to that network traffic, individual VM should be restricted by associating the NSG directly.