diff --git a/data/etc/apache2/sites-available/plinth-ssl.conf b/data/etc/apache2/sites-available/plinth-ssl.conf
index c96107003..ef91569d6 100644
--- a/data/etc/apache2/sites-available/plinth-ssl.conf
+++ b/data/etc/apache2/sites-available/plinth-ssl.conf
@@ -33,9 +33,14 @@
 
         Order Deny,Allow
         Deny from All
-        Allow from 10.0.0.0/8
-        Allow from 172.16.0.0/12
-        Allow from 192.168.0.0/16
+        Allow from 127.0.0.0/8     # IPv4 local addresses
+        Allow from 169.254.0.0/16  # IPv4 link local addresses
+        Allow from 10.0.0.0/8      # IPv4 class A private addresses
+        Allow from 172.16.0.0/12   # IPv4 class B private addresses
+        Allow from 192.168.0.0/16  # IPv4 class C private addresses
+        Allow from ::1             # IPv6 local address
+        Allow from fe80::/10       # IPv6 link local addresses
+        Allow from fc00::/7        # IPv6 private addresses
     </Location>
     ProxyPass    /plinth/static !