Question

A company runs a fleet of 300 Azure VMs across a single subnet that make frequent outbound HTTPS calls to a third-party payment API. The VMs do not need to accept inbound connections from the internet. During peak traffic the application team reports intermittent connection failures and SNAT port exhaustion errors. You must design an outbound connectivity solution that scales reliably and minimizes SNAT exhaustion. What should you recommend?

Accepted Answer

Deploy a NAT gateway associated with the subnet and assign multiple public IP addresses to it

Answer

Assign a public IP address to each VM's network interface for direct outbound access

Answer

Configure outbound rules on a Standard public Load Balancer with a single frontend IP

Answer

Route all outbound traffic through an Azure Application Gateway with a public frontend