diff --git a/src/etc/inc/interfaces.inc b/src/etc/inc/interfaces.inc
index e6f953f81..1227a09c8 100644
--- a/src/etc/inc/interfaces.inc
+++ b/src/etc/inc/interfaces.inc
@@ -2578,7 +2578,16 @@ function interface_track6_configure($interface = 'lan', $lancfg, $linkupevent =
 
     $realif = get_real_interface($interface, 'inet6');
 
-    /* always configure a fixed link-local on the track6 interfaces */
+    /*
+     * Always configure a fixed link-local on the track6 interfaces.
+     *
+     * The history of this change is under dispute.  It was originally
+     * added to be able to access the web GUI under easily remembered
+     * IPv6 address, but it has issues with CARP and other "two boxes
+     * in one network".  Now we added the override for fe80::1:1, and
+     * in the end it should work either way and all of this could be
+     * removed.  Still considering complete removal for 19.1.
+     */
     $linklocal = find_interface_ipv6_ll($realif);
     if (!empty($linklocal)) {
         mwexecf('/sbin/ifconfig %s inet6 %s delete', array($realif, $linklocal));