diff --git a/wwwroot/inc/functions.php b/wwwroot/inc/functions.php
index 26691b8a0..f922c1a50 100644
--- a/wwwroot/inc/functions.php
+++ b/wwwroot/inc/functions.php
@@ -5117,6 +5117,38 @@ function showNotice  ($message, $option = '')
 	setMessage ('neutral', $message, $option == 'inline');
 }
 
+// asks ok/cancel question
+// return  TRUE/FALSE/NULL
+// NULL = waiting for choice
+// adds 'answer' to request post data and repeats request
+function showChoice ($question)
+{
+	if (isset ($_POST['answer']))
+		return ($_POST['answer'] === 'true' ? TRUE : FALSE);
+
+	$form = "<form id=choice method=post action='?{$_SERVER['QUERY_STRING']}'>";
+	foreach ($_POST as $name => $value)
+		$form .= "<input type=hidden name='$name' value='$value'>";
+	$form .= "<input type=hidden id=answer name=answer value='false'>";
+	$form .= '</form>';
+
+	$msg = $question;
+	$question = str_replace ('<br>', '\n', $question);
+	$question = str_replace ("'", "\'", $question);
+	$msg .= <<<ENDMSG
+		$form
+		<script type="text/javascript">
+		answer = confirm('$question');
+		$('input#answer').val(answer);
+		$('form#choice').submit();
+		</script>
+ENDMSG;
+
+	setMessage ('warning', $msg, FALSE);
+
+	return NULL;
+}
+
 // do not call this directly, use showError and its siblings instead
 // $type could be 'error', 'warning', 'success' or 'neutral'
 function setMessage ($type, $message, $direct_rendering)
diff --git a/wwwroot/inc/ophandlers.php b/wwwroot/inc/ophandlers.php
index 2e43b7a32..736eeae61 100644
--- a/wwwroot/inc/ophandlers.php
+++ b/wwwroot/inc/ophandlers.php
@@ -1010,11 +1010,42 @@ function addIPAllocation ()
 		return;
 	}
 
-	if($address['reserved'] && $address['name'] != '')
+	$autorelease = getConfigVar ('IPV4_AUTO_RELEASE');
+	if ($autorelease > 0)
 	{
-		showWarning("IP ".ip_format($ip_bin)." reservation \"".$address['name']."\" is removed");
-		//TODO ask to take reserved IP or not !
+		$reserved = $ipname = FALSE;
+		if ($autorelease >= 1 && $address['reserved'] == 'yes')
+			$reserved = TRUE;
+		if ($autorelease >= 2 && $address['name'] != '')
+			$ipname = TRUE;
+
+		if ($reserved || $ipname)
+		{
+			$choice = showChoice ('Assign IP '.ip_format ($ip_bin).' Name: "'.$address['name'].'"?<br>'.
+                                ($reserved ? 'IP reservation will be removed!<br>' : '').
+                                ($ipname ? 'IP name "'.$address['name'].'" and comment will be removed!' : '')
+                                );
+
+			if ($choice === NULL) // waiting for choice
+				return;
+
+			if($choice !== TRUE)
+			{
+				showWarning ('IP '.ip_format ($ip_bin).' Name: "'.$address['name'].'" NOT assigned<br>'.
+					($reserved ? 'IP is still reserved!<br>' : '').
+					($ipname ? 'IP name "'.$address['name'].'" and comment unchanged' : ''));
+
+				return buildRedirectURL (NULL, NULL, array ('hl_ip' => ip_format ($ip_bin)));
+			}
+
+			showWarning ('IP '.ip_format ($ip_bin).' Name: "'.$address['name'].'" assigned<br>'.
+				($reserved ? 'IP is NO longer reserved!<br>' : '').
+				($ipname ? 'IP name "'.$address['name'].'" and comment removed!' : ''));
+		}
 	}
+	else
+		if ($address['reserved'] == 'yes' && $address['name'] != '')
+			showWarning ('IP '.ip_format ($ip_bin).' Name: "'.$address['name'].'" is already reserved!');
 
 	bindIPToObject
 	(