diff --git a/example/main.tf b/example/main.tf
index 2d6c014..d185416 100644
--- a/example/main.tf
+++ b/example/main.tf
@@ -1,9 +1,12 @@
 module "project" {
   source = "../project"
 
-  name = "project-1"
+  name            = "project-123"
+  labels = {
+    "example" = "test"
+  }
   organization_id = var.organization_id
-  owner_email = "maximilian.schlenz@stackit.cloud"
+  owner_email     = "maximilian.schlenz@stackit.cloud"
 }
 
 module "security_groups" {
@@ -13,10 +16,47 @@ module "security_groups" {
 
   project_id  = module.project.project_id
   name        = each.value.name
-  description = each.value.description
+  description = each.value.description != null ? each.value.description : ""
   rules       = each.value.rules
 }
 
+locals {
+  security_group_ids_by_name = {
+    for key, m in module.security_groups :
+    m.name => m.security_group_id
+  }
+}
+
+module "net" {
+  depends_on = [module.security_groups]
+  source     = "../network"
+
+  for_each = var.networks
+
+  project_id = module.project.project_id
+  name       = each.value.name
+
+  # IPv4 and IPv6 settings
+  ipv4_gateway       = each.value.ipv4_gateway
+  ipv4_nameservers   = each.value.ipv4_nameservers
+  ipv4_prefix        = each.value.ipv4_prefix
+  ipv4_prefix_length = each.value.ipv4_prefix_length
+
+  ipv6_gateway       = each.value.ipv6_gateway
+  ipv6_nameservers   = each.value.ipv6_nameservers
+  ipv6_prefix        = each.value.ipv6_prefix
+  ipv6_prefix_length = each.value.ipv6_prefix_length
+
+  no_ipv4_gateway = each.value.no_ipv4_gateway
+  no_ipv6_gateway = each.value.no_ipv6_gateway
+  routed          = each.value.routed
+  labels          = each.value.labels
+
+  # NIC options
+  nics = each.value.nics
+  security_group_ids_by_name = local.security_group_ids_by_name
+}
+
 # module "postgres" {
 #   source = "../postgres"
 
@@ -34,29 +74,6 @@ module "security_groups" {
 #   databases       = each.value.databases
 # }
 
-module "net" {
-  depends_on = [module.security_groups]
-  source     = "../network"
-
-  for_each = var.networks
-
-  project_id = module.project.project_id
-  name       = each.value.name
-
-  ipv4_nameservers = each.value.ipv4_nameservers
-  labels           = each.value.labels
-
-  nic_ipv4              = each.value.nic_ipv4
-  nic_name              = each.value.nic_name
-  nic_allowed_addresses = each.value.nic_allowed_addresses
-  nic_labels            = each.value.nic_labels
-  nic_security          = each.value.nic_security
-
-  nic_security_group_ids = [
-    module.security_groups["ssh_ingress_group"].security_group_id,
-  ]
-}
-
 # module "ske" {
 #   source = "../ske"
 
diff --git a/example/providers.tf b/example/providers.tf
index 04db4e1..21bfe9e 100644
--- a/example/providers.tf
+++ b/example/providers.tf
@@ -3,7 +3,7 @@ terraform {
   required_providers {
     stackit = {
       source  = "stackitcloud/stackit"
-      version = "0.56.0"
+      version = "0.54.0"
     }
   }
 }
diff --git a/example/terraform.tfvars b/example/terraform.tfvars
index ef8304b..d8c6bc8 100644
--- a/example/terraform.tfvars
+++ b/example/terraform.tfvars
@@ -1,7 +1,7 @@
 region                   = "eu01"
 service_account_token    = ""
 project_id               = ""
-organization_id         = "03a34540-3c1a-4794-b2c6-7111ecf824ef"
+organization_id          = "03a34540-3c1a-4794-b2c6-7111ecf824ef"
 service_account_key_path = "/Users/schlenz/sa-key-dd5fa2c9-1651-4da7-8404-9ac4fe9bc3d5.json"
 
 security_groups = {
@@ -91,21 +91,51 @@ security_groups = {
 # }
 
 networks = {
-  # web = {
-  #   name             = "web-net"
-  #   ipv4_nameservers = ["1.1.1.1", "8.8.8.8"]
-  #   labels = {
-  #     env = "prod"
-  #   }
-  # }
+  wan_network = {
+    name               = "wan_network"
+    ipv4_nameservers   = ["1.1.1.1", "8.8.8.8"]
+    ipv4_prefix_length = 24
+    ipv4_prefix        = "10.219.0.0/24"
+    routed             = true
+  }
+  lan_network1 = {
+    name               = "lan_network1"
+    ipv4_prefix_length = 24
+    ipv4_prefix        = "10.220.1.0/24"
+    routed             = true
+    nics = {
+      p2_lan1 = {
+        nic_name     = "P2LAN1"
+        nic_ipv4     = "10.220.1.32"
+        nic_security = true
+        nic_security_group_names = ["ssh-ingress-group"]
+      }
+    }
+  }
+  lan_network2 = {
+    name               = "lan_network2"
+    ipv4_prefix_length = 24
+    ipv4_prefix        = "10.221.0.0/24"
+    routed             = true
+  }
+  lan_network3 = {
+    name               = "lan_network3"
+    ipv4_nameservers   = ["1.1.1.1", "8.8.8.8"]
+    ipv4_prefix_length = 24
+    ipv4_prefix        = "10.223.3.0/24"
+    routed             = true
+  }
+  wan = {
+    name               = "MGMT"
+    ipv4_nameservers   = ["1.1.1.1", "8.8.8.8"]
+    ipv4_prefix_length = 24
+    nic_ipv4           = "10.224.0.254"
+  }
 
   db = {
     name         = "db-net"
     nic_ipv4     = "10.0.0.126"
     nic_security = true
-    security_groups = {
-
-    }
   }
 }
 
diff --git a/example/variables.tf b/example/variables.tf
index be98dee..496493e 100644
--- a/example/variables.tf
+++ b/example/variables.tf
@@ -77,23 +77,45 @@ variable "security_groups" {
 #   }))
 # }
 
+# Network definition map
 variable "networks" {
   type = map(object({
     name = string
 
-    ipv4_nameservers = optional(list(string))
-    labels           = optional(map(string))
+    # IPv4 settings
+    ipv4_gateway       = optional(string)
+    ipv4_nameservers   = optional(list(string))
+    ipv4_prefix        = optional(string)
+    ipv4_prefix_length = optional(number)
 
-    nic_ipv4 = optional(string)
-    nic_name = optional(string)
+    # IPv6 settings
+    ipv6_gateway       = optional(string)
+    ipv6_nameservers   = optional(list(string))
+    ipv6_prefix        = optional(string)
+    ipv6_prefix_length = optional(number)
 
-    nic_allowed_addresses  = optional(list(string))
-    nic_labels             = optional(map(string))
-    nic_security           = optional(bool)
-    nic_security_group_ids = optional(list(string))
+    # Flags & labels
+    labels          = optional(map(string))
+    no_ipv4_gateway = optional(bool)
+    no_ipv6_gateway = optional(bool)
+    routed          = optional(bool)
+
+    # NIC‑specific options
+    nics = optional(map(object({
+      nic_ipv4                 = optional(string)
+      nic_name                 = string
+      nic_allowed_addresses    = optional(list(string))
+      nic_labels               = optional(map(string))
+      nic_security             = optional(bool)
+      nic_security_group_ids   = optional(list(string))
+      nic_security_group_names = optional(list(string))
+    })))
   }))
+
+  default = {}
 }
 
+
 # variable "ske_clusters" {
 #   type = map(object({
 #     name                   = string
diff --git a/network/main.tf b/network/main.tf
index b010a34..0f7b638 100644
--- a/network/main.tf
+++ b/network/main.tf
@@ -1,31 +1,41 @@
 resource "stackit_network" "this" {
-  project_id = var.project_id
-  name       = var.name
+  project_id         = var.project_id
+  name               = var.name
+  labels             = var.labels
 
-  ipv4_gateway       = var.routed == false ? var.ipv4_gateway : null
+  # IPv4 settings
+  ipv4_gateway       = var.ipv4_gateway
   ipv4_nameservers   = var.ipv4_nameservers
   ipv4_prefix        = var.ipv4_prefix
   ipv4_prefix_length = var.ipv4_prefix_length
-  ipv6_gateway       = var.routed == false ? var.ipv6_gateway : null
+
+  # IPv6 settings
+  ipv6_gateway       = var.ipv6_gateway
   ipv6_nameservers   = var.ipv6_nameservers
   ipv6_prefix        = var.ipv6_prefix
   ipv6_prefix_length = var.ipv6_prefix_length
-  labels             = var.labels
-  no_ipv4_gateway    = var.no_ipv4_gateway
-  no_ipv6_gateway    = var.no_ipv6_gateway
-  routed             = var.routed
+
+  no_ipv4_gateway  = var.no_ipv4_gateway
+  no_ipv6_gateway  = var.no_ipv6_gateway
+  routed           = var.routed
 }
 
-resource "stackit_network_interface" "static" {
-  count = var.nic_ipv4 == null ? 0 : 1
+resource "stackit_network_interface" "nics" {
+  for_each = var.nics != null ? var.nics : {}
 
-  network_id = stackit_network.this.network_id
   project_id = var.project_id
-
-  ipv4               = var.nic_ipv4
-  labels             = var.nic_labels
-  name               = var.nic_name != null ? var.nic_name : "${var.name}-nic"
-  security           = var.nic_security
-  security_group_ids = var.nic_security ? var.nic_security_group_ids : null
-  allowed_addresses  = var.nic_security ? var.nic_allowed_addresses : null
+  network_id = stackit_network.this.network_id
+  
+  name               = each.value.nic_name
+  ipv4               = each.value.nic_ipv4
+  allowed_addresses  = each.value.nic_allowed_addresses
+  labels             = each.value.nic_labels
+  security           = each.value.nic_security
+  security_group_ids = (
+    each.value.nic_security_group_ids != null ? each.value.nic_security_group_ids :
+    each.value.nic_security_group_names != null ? 
+    [for name in each.value.nic_security_group_names : var.security_group_ids_by_name[name]] 
+    : []
+  )
 }
+
diff --git a/network/output.tf b/network/output.tf
new file mode 100644
index 0000000..fc6e82d
--- /dev/null
+++ b/network/output.tf
@@ -0,0 +1,9 @@
+output "network_id" {
+  description = "Network ID"
+  value       = stackit_network.this.network_id
+}
+
+output "network_name" {
+  description = "Network name"
+  value       = stackit_network.this.name
+}
diff --git a/network/providers.tf b/network/providers.tf
index 8962cf6..532c77d 100644
--- a/network/providers.tf
+++ b/network/providers.tf
@@ -1,10 +1,9 @@
-
 terraform {
   required_version = ">= 1.9.0"
   required_providers {
     stackit = {
       source  = "stackitcloud/stackit"
-      version = "0.56.0"
+      version = "0.54.0"
     }
   }
 }
diff --git a/network/variables.tf b/network/variables.tf
index dd0dad5..68eb3a6 100644
--- a/network/variables.tf
+++ b/network/variables.tf
@@ -63,7 +63,7 @@ variable "no_ipv6_gateway" {
 
 variable "routed" {
   type    = bool
-  default = true
+  # default = true
 }
 
 variable "nic_allowed_addresses" {
@@ -97,7 +97,20 @@ variable "nic_security_group_ids" {
   default = []
 }
 
-variable "nic_security_group_names" {
-  type    = list(string)
-  default = []
-}
\ No newline at end of file
+variable "nics" {
+  type = map(object({
+    nic_ipv4                 = optional(string)
+    nic_name                 = optional(string)
+    nic_allowed_addresses    = optional(list(string))
+    nic_labels               = optional(map(string))
+    nic_security             = optional(bool)
+    nic_security_group_ids   = optional(list(string))
+    nic_security_group_names = optional(list(string))
+  }))
+  default = {}
+}
+
+variable "security_group_ids_by_name" {
+  description = "Map of security-group names -> IDs"
+  type        = map(string)
+}
diff --git a/project/output.tf b/project/output.tf
index 67fb6c5..09573a9 100644
--- a/project/output.tf
+++ b/project/output.tf
@@ -1,4 +1,4 @@
 output "project_id" {
-  value       = stackit_resourcemanager_project.this.id
+  value       = stackit_resourcemanager_project.this.project_id
   description = "ID of the project" 
 }
\ No newline at end of file
diff --git a/project/providers.tf b/project/providers.tf
index 6e038c3..532c77d 100644
--- a/project/providers.tf
+++ b/project/providers.tf
@@ -3,7 +3,7 @@ terraform {
   required_providers {
     stackit = {
       source  = "stackitcloud/stackit"
-      version = "0.56.0"
+      version = "0.54.0"
     }
   }
 }
diff --git a/security-group/output.tf b/security-group/output.tf
index b172314..d28e44e 100644
--- a/security-group/output.tf
+++ b/security-group/output.tf
@@ -1,8 +1,9 @@
 output "security_group_id" {
-  value       = stackit_security_group.this.security_group_id
   description = "ID of the security group"
+  value       = stackit_security_group.this.security_group_id
 }
 
-output "rule_ids" {
-  value = stackit_security_group_rule.rule[*].id
+output "name" {
+  description = "Name of the security group"
+  value       = stackit_security_group.this.name
 }
diff --git a/security-group/providers.tf b/security-group/providers.tf
index 6e038c3..532c77d 100644
--- a/security-group/providers.tf
+++ b/security-group/providers.tf
@@ -3,7 +3,7 @@ terraform {
   required_providers {
     stackit = {
       source  = "stackitcloud/stackit"
-      version = "0.56.0"
+      version = "0.54.0"
     }
   }
 }
diff --git a/security-group/variables.tf b/security-group/variables.tf
index 4367b87..053a240 100644
--- a/security-group/variables.tf
+++ b/security-group/variables.tf
@@ -1,45 +1,107 @@
 variable "project_id" {
+  description = "STACKIT project ID in which to create resources."
   type        = string
-  description = "The ID of the project where the security group will be created."
 }
 
 variable "name" {
+  description = "Name of the network."
   type        = string
-  description = "Name of the security group."
 }
 
 variable "description" {
   type        = string
   default     = ""
-  description = "Description of the security group. If not provided, it defaults to an empty string."
+}
+
+variable "ipv4_gateway" {
+  description = "IPv4 gateway for the network. If null, the first IP in the CIDR is used."
+  type        = string
+  nullable    = true
+  default     = null
+}
+
+variable "ipv4_nameservers" {
+  description = "List of IPv4 nameservers."
+  type        = list(string)
+  nullable    = true
+  default     = null
+}
+
+variable "ipv4_prefix" {
+  description = "IPv4 prefix (CIDR) for the network."
+  type        = string
+  nullable    = true
+  default     = null
+}
+
+variable "ipv4_prefix_length" {
+  description = "IPv4 prefix length for the network."
+  type        = number
+  nullable    = true
+  default     = null
+}
+
+variable "ipv6_gateway" {
+  description = "IPv6 gateway for the network. If null, the first IP in the CIDR is used."
+  type        = string
+  nullable    = true
+  default     = null
+}
+
+variable "ipv6_nameservers" {
+  description = "List of IPv6 nameservers."
+  type        = list(string)
+  nullable    = true
+  default     = null
+}
+
+variable "ipv6_prefix" {
+  description = "IPv6 prefix (CIDR) for the network."
+  type        = string
+  nullable    = true
+  default     = null
+}
+
+variable "ipv6_prefix_length" {
+  description = "IPv6 prefix length for the network."
+  type        = number
+  nullable    = true
+  default     = null
+}
+
+variable "labels" {
+  description = "Key/value labels to attach to the network."
+  type        = map(string)
+  nullable    = true
+  default     = null
+}
+
+variable "no_ipv4_gateway" {
+  description = "If true, suppress creation of an IPv4 gateway."
+  type        = bool
+  default     = false
+}
+
+variable "no_ipv6_gateway" {
+  description = "If true, suppress creation of an IPv6 gateway."
+  type        = bool
+  default     = false
+}
+
+variable "routed" {
+  description = "If true, the network is routed."
+  type        = bool
+  default     = false
+}
+
+variable "routing_table_id" {
+  description = "Routing table ID to associate with this network (experimental)."
+  type        = string
+  nullable    = true
+  default     = null
 }
 
 variable "rules" {
-  description = "List of rules to attach to this security-group"
-  type = list(object({
-    direction   = string
-    description = optional(string)
-    ether_type  = optional(string)
-    icmp_parameters = optional(object({
-      type = optional(number)
-      code = optional(number)
-    }))
-    ip_range = optional(string)
-    port_range = optional(object({
-      min = number
-      max = number
-    }))
-    protocol = optional(object({
-      name = optional(string)
-    }))
-    remote_security_group_id = optional(string)
-  }))
-  default = []
-  validation {
-    condition = alltrue([
-      for rule in var.rules : contains(["ingress", "egress"], rule.direction)
-      # ... need more validations 
-    ])
-    error_message = "Direction must be either \"ingress\" or \"egress\"."
-  }
+  description = "List of routing rules to apply to this network (experimental)."
+  type        = any
 }