source
CIDR or source IP range or * to match any IP. Tags such as VirtualNetwork, AzureLoadBalancer and Internet can also be used. This is required if source_address_prefixes is not specified.
CIDR or source IP range or * to match any IP. Tags such as VirtualNetwork, AzureLoadBalancer and Internet can also be used. This is required if source_address_prefixes is not specified.