diff --git a/src/etc/inc/interfaces.inc b/src/etc/inc/interfaces.inc
index bf83858087..28e15b58db 100644
--- a/src/etc/inc/interfaces.inc
+++ b/src/etc/inc/interfaces.inc
@@ -5863,16 +5863,8 @@ function get_interface_mac($interface) {
 }
 
 function get_interface_vendor_mac($interface) {
-	global $g;
-
-	$mac = "";
-	$mac_file = "{$g['vardb_path']}/vendor_mac";
-	if (file_exists($mac_file)) {
-		$vendor_mac_arr = json_decode(file_get_contents($mac_file), true);
-		$mac = (is_macaddr($vendor_mac_arr[$interface])) ? $vendor_mac_arr[$interface] : '';
-	}
-
-	return $mac;
+	$macinfo = pfSense_get_interface_addresses($interface);
+	return $macinfo["hwaddr"] ?: '';
 }
 
 /****f* pfsense-utils/generate_random_mac_address
diff --git a/src/etc/rc.bootup b/src/etc/rc.bootup
index c23299e63f..0770a298e3 100755
--- a/src/etc/rc.bootup
+++ b/src/etc/rc.bootup
@@ -186,32 +186,7 @@ echo "Loading configuration...";
 parse_config_bootup();
 echo "done.\n";
 
-/* If pfSense.boot kenv is set, it's a reroot */
-if (mwexec("/bin/kenv -q pfSense.boot 2>/dev/null") != 0) {
-	/* Collect vendor MAC address for all interfaces */
-	$ifs = pfSense_interface_listget();
-	foreach ($ifs as $if) {
-		$if_details = pfSense_get_interface_addresses($if);
-		if (isset($if_details['iftype']) &&
-		    $if_details['iftype'] == 'virtual') {
-			continue;
-		}
-
-		if (empty($if_details['macaddr']) ||
-		    $if_details['macaddr'] == "00:00:00:00:00:00") {
-			continue;
-		}
-
-		$vendor_mac_arr[$if] = $if_details['macaddr'];
-	}
-	$vendor_mac_arr_json = json_encode($vendor_mac_arr);
-	if (@file_get_contents("{$g['vardb_path']}/vendor_mac") !== $vendor_mac_arr_json) {
-		@file_put_contents("{$g['vardb_path']}/vendor_mac", $vendor_mac_arr_json);
-	}
-	unset($ifs, $if, $vendor_mac_arr, $vendor_mac_arr_json);
-	mwexec("/usr/sbin/gnid > {$g['vardb_path']}/uniqueid 2>/dev/null");
-	mwexec("/bin/kenv pfSense.boot=1");
-}
+mwexec("/usr/sbin/gnid > {$g['vardb_path']}/uniqueid 2>/dev/null");
 
 /* run any early shell commands specified in config.xml */
 system_do_shell_commands(1);