diff --git a/ifupdown2/addons/bridge.py b/ifupdown2/addons/bridge.py
index 00b1eaa..bcedb11 100644
--- a/ifupdown2/addons/bridge.py
+++ b/ifupdown2/addons/bridge.py
@@ -1125,7 +1125,7 @@ class bridge(Addon, moduleBase):
                     err += 1
                     continue
                 hwaddress = self.cache.get_link_address(bridgeport)
-                if not self._valid_ethaddr(hwaddress):
+                if not ifupdownflags.flags.DRYRUN and not self._valid_ethaddr(hwaddress):
                     self.log_warn('%s: skipping port %s, ' %(ifaceobj.name,
                                   bridgeport) + 'invalid ether addr %s'
                                   %hwaddress)
diff --git a/ifupdown2/ifupdown/ifupdownmain.py b/ifupdown2/ifupdown/ifupdownmain.py
index 01163e2..59435c8 100644
--- a/ifupdown2/ifupdown/ifupdownmain.py
+++ b/ifupdown2/ifupdown/ifupdownmain.py
@@ -1804,7 +1804,7 @@ class ifupdownMain:
                     auto = False
                     break
 
-            if auto and not os.path.exists("/sys/class/net/%s" % ifname):
+            if not ifupdownflags.flags.DRYRUN and auto and not os.path.exists("/sys/class/net/%s" % ifname):
                 self.logger.warning("%s: interface not recognized - please check interface configuration" % ifname)
 
     def _get_filtered_ifacenames_with_classes(self, auto, allow_classes, excludepats, ifacenames):
diff --git a/ifupdown2/ifupdown/utils.py b/ifupdown2/ifupdown/utils.py
index 08091e5..77aaed9 100644
--- a/ifupdown2/ifupdown/utils.py
+++ b/ifupdown2/ifupdown/utils.py
@@ -289,10 +289,11 @@ class utils():
 
     @classmethod
     def _log_command_exec(cls, cmd, stdin):
+        dry_run = "DRY-RUN: " if ifupdownflags.flags.DRYRUN else ""
         if stdin:
-            cls.logger.info('executing %s [%s]' % (cmd, stdin))
+            cls.logger.info('%sexecuting %s [%s]' % (dry_run, cmd, stdin))
         else:
-            cls.logger.info('executing %s' % cmd)
+            cls.logger.info('%sexecuting %s' % (dry_run, cmd))
 
     @classmethod
     def _format_error(cls, cmd, cmd_returncode, cmd_output, stdin):
diff --git a/ifupdown2/lib/nlcache.py b/ifupdown2/lib/nlcache.py
index 6b188bd..a7869e4 100644
--- a/ifupdown2/lib/nlcache.py
+++ b/ifupdown2/lib/nlcache.py
@@ -2801,7 +2801,7 @@ class NetlinkListenerWithCache(nllistener.NetlinkManagerWithListener, BaseObject
         except Exception as e:
             raise Exception("%s: netlink: cannot create bridge or set attributes: %s" % (ifname, str(e)))
 
-    def link_set_bridge_info_data_dry_run(self, ifname, ifla_info_data):
+    def link_set_bridge_info_data_dry_run(self, ifname, ifla_info_data, link_just_created):
         self.log_info_ifname_dry_run(ifname, "netlink: ip link add dev %s type bridge (with attributes)" % ifname)
         self.logger.debug("attributes: %s" % ifla_info_data)
 
@@ -3054,7 +3054,7 @@ class NetlinkListenerWithCache(nllistener.NetlinkManagerWithListener, BaseObject
         except Exception as e:
             raise Exception("netlink: %s: cannot set %s (bridge slave) with options: %s" % (kind, ifname, str(e)))
 
-    def link_set_brport_with_info_slave_data_dry_run(self, ifname, _, __, ifla_info_slave_data):
+    def link_set_brport_with_info_slave_data_dry_run(self, ifname, kind, ifla_info_data, ifla_info_slave_data):
         self.log_info_ifname_dry_run(ifname, "netlink: ip link set dev %s: bridge port attributes" % ifname)
         self.logger.debug("attributes: %s" % ifla_info_slave_data)