diff --git a/main.tf b/main.tf
index fe41fe1..87a2673 100644
--- a/main.tf
+++ b/main.tf
@@ -1,26 +1,15 @@
 locals {
-  gcp_compute_router_name     = coalesce(var.gcp_compute_router_name, lower(format("router-%s", random_string.this.result)))
-  gcp_compute_router_id       = var.gcp_compute_create_router ? google_compute_router.this[0].id : data.google_compute_router.this[0].id
+  gcp_compute_router_name     = lower(format("router-%s", random_string.this.result))
+  gcp_compute_router_id       = var.gcp_compute_create_router ? google_compute_router.this[0].id : var.gcp_compute_router_id
   gcp_region                  = coalesce(var.gcp_region, data.google_client_config.this.region)
   gcp_project                 = coalesce(var.gcp_project, data.google_client_config.this.project)
-  gcp_network                 = data.google_compute_network.this.id
+  gcp_network                 = var.gcp_compute_network_id
   gcp_bgp_addresses           = try(jsondecode(data.local_file.this[0].content), null)
   gcp_bgp_addresses_file_path = "${path.module}/gcp_peering_addresses.json"
 }
 
 data "google_client_config" "this" {}
 
-data "google_compute_network" "this" {
-  name = var.gcp_compute_network_name
-}
-
-data "google_compute_router" "this" {
-  count = var.gcp_compute_create_router ? 0 : 1
-
-  name    = local.gcp_compute_router_name
-  network = local.gcp_network
-}
-
 resource "google_compute_router" "this" {
   count = var.gcp_compute_create_router ? 1 : 0
 
diff --git a/outputs.tf b/outputs.tf
index 0ae1570..cc1a081 100644
--- a/outputs.tf
+++ b/outputs.tf
@@ -59,7 +59,7 @@ output "gcp_cloud_router_id" {
 
 output "gcp_cloud_router_name" {
   description = "Google Cloud Router Name."
-  value       = var.gcp_compute_create_router ? google_compute_router.this[0].name : data.google_compute_router.this[0].name
+  value       = var.gcp_compute_create_router ? google_compute_router.this[0].name : ""
 }
 
 output "gcp_cloud_router_ip_address" {
diff --git a/variables.tf b/variables.tf
index 68a73c1..39b1d4a 100644
--- a/variables.tf
+++ b/variables.tf
@@ -140,10 +140,10 @@ variable "gcp_project" {
   default     = ""
 }
 
-variable "gcp_compute_network_name" {
+variable "gcp_compute_network_id" {
   type        = string
-  description = "The name of an existing Google Cloud VPC network. If unspecified, default regional network will be used."
-  default     = "default"
+  description = "The ID of an existing Google Cloud VPC network. If unspecified, default regional network will be used."
+  default     = ""
 }
 
 variable "gcp_compute_create_router" {
@@ -152,9 +152,9 @@ variable "gcp_compute_create_router" {
   default     = true
 }
 
-variable "gcp_compute_router_name" {
+variable "gcp_compute_router_id" {
   type        = string
-  description = "The name for Google Cloud router. If unspecified, it will be auto-generated. Required if 'gcp_compute_create_router' is false."
+  description = "The ID for Google Cloud router. If unspecified, it will be auto-generated. Required if 'gcp_compute_create_router' is false."
   default     = ""
 }