diff --git a/xt/21-check_acl_no_ipaddr_only.t b/xt/21-check_acl_no_ipaddr_only.t
new file mode 100644
index 00000000..e0c95532
--- /dev/null
+++ b/xt/21-check_acl_no_ipaddr_only.t
@@ -0,0 +1,22 @@
+#!/usr/bin/env perl
+
+use strict; use warnings;
+
+BEGIN { $ENV{DANCER_ENVDIR} = '/dev/null'; }
+
+use Test::More 1.302083;
+use Test::File::ShareDir::Dist { 'App-Netdisco' => 'share/' };
+
+BEGIN {
+  use_ok( 'App::Netdisco::Util::DNS', 'hostname_from_ip' );
+}
+
+use Dancer qw/:script !pass/;
+
+config->{'dns'} = {no => ['::1','fe80::/10','127.0.0.0/8','169.254.0.0/16']};
+is(hostname_from_ip('127.0.0.1'), undef, '127.0.0.1 blocked');
+
+config->{'dns'} = {no => ['::1','fe80::/10','169.254.0.0/16']};
+is(hostname_from_ip('127.0.0.1'), 'localhost', '127.0.0.1 allowed');
+
+done_testing;