diff --git a/api-ref/source/v2/ports.inc b/api-ref/source/v2/ports.inc
index 7ea368e4c..260f22a83 100644
--- a/api-ref/source/v2/ports.inc
+++ b/api-ref/source/v2/ports.inc
@@ -18,6 +18,13 @@ that the port can use when sending packets if ``port_security_enabled`` is
 ``ip_address`` is required in each allowed address pair, the ``mac_address``
 is optional and will be taken from the port if not specified.
 
+.. warning::
+
+    If a security group with a ``remote_group_id`` rule is used by a port, adding
+    an address pair with IP address ``0.0.0.0/0`` (``ANY``) will bypass all rules
+    with source IP address restrictions for all ports which use the same security
+    group.
+
 Data plane status extension
 ===========================