Fixed hourly fee per firewall deployed. Hourly charges differ based on SKU types.
Data Processing fees are billed per deployment based on data processed by the Firewall.
Key Points:
Choose the right firewall SKU as per your feature needs.
Deploy Azure firewall in the Availability zone for increased uptime & higher SLA.
Firewall, Vnet & Public IP should be on the same resource group while deploying the Azure firewall.
Azure firewall will be deployed on AzureFirewallSubnet & the subnet size is /26.
Deploy Azure firewall with multiple public IP addresses to enable SNAT & DNAT. Azure supports 2496 SNAT ports per Public IP and you can associate max 250 public IP addresses.
Azure firewall can filter east-west and north-south traffic.
Azure Firewall does not support SNAT when a destination IP address is a Private range.
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