diff --git a/lib/vagrant-subutai/packer/subutai_config.rb b/lib/vagrant-subutai/packer/subutai_config.rb
index 1f62989..1ddb0b2 100644
--- a/lib/vagrant-subutai/packer/subutai_config.rb
+++ b/lib/vagrant-subutai/packer/subutai_config.rb
@@ -62,6 +62,7 @@ module SubutaiConfig
     BRIDGE_VMWARE
     BRIDGE_KVM
     BRIDGE_HYPERV
+    CHECK_MAC
   ].freeze
   
   GENERATED_PARAMETERS = %i[
@@ -112,10 +113,10 @@ module SubutaiConfig
     LIBVIRT_POOL: 'default',         # Libvirt pool name
     BLUEPRINT_NO_AUTO: false,        # Auto provision blueprints if present
 
-    # Configuration parameters below have not been implemented
     SUBUTAI_DESKTOP: false,          # install desktop with tray and p2p client
     SUBUTAI_MAN_TMPL: nil,           # provision alternative management template
-    APT_PROXY_URL: nil,               # configure apt proxy URL
+    APT_PROXY_URL: nil,              # configure apt proxy URL
+    CHECK_MAC: false,                # mac addr checks
 
     # provider with value
     hyper_v: 'hyperv',
@@ -354,7 +355,7 @@ def self.do_network(provider)
       if @bridged && get(:_SSH_PORT).nil? && write?
 
     put(:_BASE_MAC, find_mac(provider), true) \
-      if @bridged && get(:_BASE_MAC).nil? && write?
+      if @bridged && get(:_BASE_MAC).nil? && write? && get(:CHECK_MAC)
 
     put(:_BRIDGED, @bridged, true) if write?
 
diff --git a/lib/vagrant-subutai/packer/subutai_validation.rb b/lib/vagrant-subutai/packer/subutai_validation.rb
index ad9fc3b..aaf839b 100644
--- a/lib/vagrant-subutai/packer/subutai_validation.rb
+++ b/lib/vagrant-subutai/packer/subutai_validation.rb
@@ -42,7 +42,8 @@ module SubutaiValidation
     "BRIDGE_PARALLELS":     :string,
     "BRIDGE_VMWARE":        :string,
     "BRIDGE_KVM":           :string,
-    "BRIDGE_HYPERV":        :string
+    "BRIDGE_HYPERV":        :string,
+    "CHECK_MAC":            :bool
   }.freeze
 
   def self.validate(key, value)