diff --git a/ethernet_interface.cpp b/ethernet_interface.cpp
index 35e61a7..d887bf5 100644
--- a/ethernet_interface.cpp
+++ b/ethernet_interface.cpp
@@ -664,9 +664,10 @@
 {
     if (!mac_address::validate(value))
     {
-        log<level::DEBUG>("MACAddress is not valid.",
+        log<level::ERR>("MACAddress is not valid.",
                           entry("MAC=%s", value.c_str()));
-        return MacAddressIntf::mACAddress();
+        elog<InvalidArgument>(Argument::ARGUMENT_NAME("MACAddress"),
+                              Argument::ARGUMENT_VALUE(value.c_str()));
     }
 
     // check whether MAC is broadcast mac.
@@ -674,9 +675,10 @@
 
     if (!(intMac ^ mac_address::broadcastMac))
     {
-        log<level::DEBUG>("MACAddress is a broadcast mac.",
+        log<level::ERR>("MACAddress is a broadcast mac.",
                           entry("MAC=%s", value.c_str()));
-        return MacAddressIntf::mACAddress();
+        elog<InvalidArgument>(Argument::ARGUMENT_NAME("MACAddress"),
+                              Argument::ARGUMENT_VALUE(value.c_str()));
     }
 
     // Check if the MAC changed.
@@ -700,9 +702,10 @@
 
             if (intInventoryMac != intMac)
             {
-                log<level::DEBUG>("Given MAC address is neither a local Admin "
+                log<level::ERR>("Given MAC address is neither a local Admin "
                                   "type nor is same as in inventory");
-                return MacAddressIntf::mACAddress();
+                elog<InvalidArgument>(Argument::ARGUMENT_NAME("MACAddress"),
+                                      Argument::ARGUMENT_VALUE(value.c_str()));
             }
         }
         catch(InternalFailure& e)
diff --git a/ethernet_interface.hpp b/ethernet_interface.hpp
index 5109e42..caa042e 100644
--- a/ethernet_interface.hpp
+++ b/ethernet_interface.hpp
@@ -121,7 +121,7 @@
 
         /** @brief sets the MAC address.
          *  @param[in] value - MAC address which needs to be set on the system.
-         *  @returns macAddress of the interface.
+         *  @returns macAddress of the interface or throws an error.
          */
         std::string mACAddress(std::string value) override;