diff --git a/setup/flavors/compose/docker-compose.yml b/setup/flavors/compose/docker-compose.yml
index 67408bee..a1d985e4 100644
--- a/setup/flavors/compose/docker-compose.yml
+++ b/setup/flavors/compose/docker-compose.yml
@@ -3,7 +3,7 @@
 # Please read the documentation before attempting any change.
 # Generated for {{ flavor }} flavor
 
-version: '3.6'
+version: '2.2'
 
 services:
 
@@ -160,8 +160,14 @@ services:
 
 networks:
   default:
+    {% if ipv6_enabled %}
+    enable_ipv6: true
+    {% endif %}
     driver: bridge
     ipam:
       driver: default
       config:
         - subnet: {{ subnet }}
+        {% if ipv6_enabled %}
+        - subnet: {{ subnet6 }}
+        {% endif %}
diff --git a/setup/flavors/compose/mailu.env b/setup/flavors/compose/mailu.env
index 7d160011..341b7634 100644
--- a/setup/flavors/compose/mailu.env
+++ b/setup/flavors/compose/mailu.env
@@ -27,6 +27,9 @@ SECRET_KEY={{ secret(16) }}
 
 # Subnet of the docker network. This should not conflict with any networks to which your system is connected. (Internal and external!)
 SUBNET={{ subnet }}
+{% if ipv6_enabled %}
+SUBNET6={{ subnet6 }}
+{% endif %}
 
 # Main mail domain
 DOMAIN={{ domain }}
diff --git a/setup/server.py b/setup/server.py
index fea27ead..134989f4 100644
--- a/setup/server.py
+++ b/setup/server.py
@@ -9,6 +9,7 @@ import string
 import random
 import ipaddress
 import hashlib
+import time
 
 
 version = os.getenv("this_version")
@@ -33,6 +34,17 @@ def secret(length=16):
         for _ in range(length)
     )
 
+#Original copied from https://github.com/andrewlkho/ulagen
+def random_ipv6_subnet():
+    eui64 = uuid.getnode() >> 24 << 48 | 0xfffe000000 | uuid.getnode() & 0xffffff
+    eui64_canon = "-".join([format(eui64, "02X")[i:i+2] for i in range(0, 18, 2)])
+
+    h = hashlib.sha1()
+    h.update((eui64_canon + str(time.time() - time.mktime((1900, 1, 1, 0, 0, 0, 0, 1, -1)))).encode('utf-8'))
+    globalid = h.hexdigest()[0:10]
+
+    prefix = ":".join(("fd" + globalid[0:2], globalid[2:6], globalid[6:10]))
+    return prefix
 
 def build_app(path):
 
@@ -69,8 +81,9 @@ def build_app(path):
     @root_bp.route("/submit_flavor", methods=["POST"])
     def submit_flavor():
         data = flask.request.form.copy()
+        subnet6 = random_ipv6_subnet()
         steps = sorted(os.listdir(os.path.join(path, "templates", "steps", data["flavor"])))
-        return flask.render_template('wizard.html', flavor=data["flavor"], steps=steps)
+        return flask.render_template('wizard.html', flavor=data["flavor"], steps=steps, subnet6=subnet6)
 
     @prefix_bp.route("/submit", methods=["POST"])
     @root_bp.route("/submit", methods=["POST"])
diff --git a/setup/static/render.js b/setup/static/render.js
index 23afcbec..e501fffb 100644
--- a/setup/static/render.js
+++ b/setup/static/render.js
@@ -86,3 +86,16 @@ $(document).ready(function() {
 		}
 	});
 });
+
+$(document).ready(function() {
+	if ($('#enable_ipv6').prop('checked')) {
+		$("#ipv6").show();
+	}
+	$("#enable_ipv6").change(function() {
+		if ($(this).is(":checked")) {
+			$("#ipv6").show();
+		} else {
+			$("#ipv6").hide();
+		}
+	});
+});
diff --git a/setup/templates/steps/compose/03_expose.html b/setup/templates/steps/compose/03_expose.html
index 0c912778..5d7b29ad 100644
--- a/setup/templates/steps/compose/03_expose.html
+++ b/setup/templates/steps/compose/03_expose.html
@@ -17,13 +17,27 @@ avoid generic all-interfaces addresses like <code>0.0.0.0</code> or <code>::</co
 <!--   Validates IPv4 address -->
   <input class="form-control" type="text" name="bind4" value="127.0.0.1" 
   		pattern="^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$">
+  <label>Subnet of the docker network. This should not conflict with any networks to which your system is connected. (Internal and external!)</label>
+  <input class="form-control" type="text" name="subnet" required pattern="^([0-9]{1,3}\.){3}[0-9]{1,3}(\/([0-9]|[1-2][0-9]|3[0-2]))$"
+    value="192.168.203.0/24">
 </div>
 
-<div class="form-group">
+<div class="form-check form-check-inline">
+  <label class="form-check-label">
+    <input class="form-check-input" type="checkbox" name="ipv6_enabled" value="true" id="enable_ipv6">
+    Enable IPv6
+  </label>
+</div>
+
+<div class="form-group" id="ipv6" style="display: none">
+  <p><span class="label label-warning">Warning</span> You must use specific addresses, please
+	avoid generic all-interfaces addresses like <code>0.0.0.0</code> or <code>::</code>.</p>
   <label>IPv6 listen address</label>
 <!--   Validates IPv6 address -->
   <input class="form-control" type="text" name="bind6" value="::1"
   		pattern="^s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d)){3}))|:)))(%.+)?s*(\/([0-9]|[1-9][0-9]|1[0-1][0-9]|12[0-8]))?$">
+  <label>Subnet of the docker network. This should not conflict with any networks to which your system is connected. (Internal and external!)</label>
+  <input class="form-control" type="text" name="subnet6" required value="{{ subnet6 }}:beef::/64">
 </div>
 
 <div class="form-check form-check-inline">
@@ -33,12 +47,6 @@ avoid generic all-interfaces addresses like <code>0.0.0.0</code> or <code>::</co
   </label>
 </div>
 
-<div class="form-group">
-  <label>Subnet of the docker network. This should not conflict with any networks to which your system is connected. (Internal and external!)</label>
-  <input class="form-control" type="text" name="subnet" required pattern="^([0-9]{1,3}\.){3}[0-9]{1,3}(\/([0-9]|[1-2][0-9]|3[0-2]))$"
-    value="192.168.203.0/24">
-</div>
-
 <p>You server will be available under a main hostname but may expose multiple public
 hostnames. Every e-mail domain that points to this server must have one of the
 hostnames in its <code>MX</code> record. Hostnames must be coma-separated.</p>