An address taken from a subnet of a virtual network and used to talk within that network, to linked networks and to on-premises sites. The internet can't reach it.
Read more: Microsoft Learn
In the Ultra Transcenders books
Each book explains Private IP address in context, with comparison tables and the common traps.
Terms in this definition
- Subnet
A segment of a VNet's address space from which resources receive private IPs. Azure holds back five addresses per subnet (the first four and the last), leaving 251 usable in a /24 and three in a /29, the smallest IPv4 subnet.
- VNet
A private network belonging to a single subscription and region and covering all of that region's availability zones. A VM can only use a VNet located in the same region.
Related terms
- Frontend IP configuration
The public or private IP address on a load balancer that clients connect to. Inbound NAT rules and load-balancing rules point at it.
- Internal
The API Management VNet mode where the gateway can be reached solely through a private IP address.
- IP
The Internet Protocol handles addressing on networks; a private endpoint gives a service its own private IP address.
- IP-based connection
A feature of Bastion at Standard tier and above that lets you connect to a target using its private IP address rather than picking the VM resource.