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Disable SNAT regardless of the destination IP address (Firewall) since forced tunneling is turned on #194

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merged 5 commits into from
May 7, 2021
Merged

Disable SNAT regardless of the destination IP address (Firewall) since forced tunneling is turned on #194

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4d0551d
testing snat
May 4, 2021
c030b6f
corrected string type
May 4, 2021
fefa207
corrected list type
May 4, 2021
2d1a30b
changed variable for private_ip_ranges to be more readbale to user
May 6, 2021
b9fc2e9
Merge branch 'main' into disablesnat
jjansen23 May 7, 2021
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1 change: 1 addition & 0 deletions src/modules/firewall/main.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@ resource "azurerm_firewall" "firewall" {
location = data.azurerm_resource_group.hub.location
resource_group_name = data.azurerm_resource_group.hub.name
sku_tier = var.firewall_sku
private_ip_ranges = var.disable_snat_ip_range
tags = var.tags

ip_configuration {
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10 changes: 10 additions & 0 deletions src/modules/firewall/variables.tf
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Expand Up @@ -49,3 +49,13 @@ variable "tags" {
type = map(string)
default = {}
}

# With forced tunneling on, Configure Azure Firewall to never SNAT regardless of the destination IP address,
# use 0.0.0.0/0 as your private IP address range.
# With this configuration, Azure Firewall can never route traffic directly to the Internet.
# see: https://docs.microsoft.com/en-us/azure/firewall/snat-private-range
variable "disable_snat_ip_range" {
description = "The address space to be used to ensure that SNAT is disabled."
default = ["0.0.0.0/0"]
type = list
}