diff --git a/networks/templates/modify_fixed_address.html b/networks/templates/modify_ipv4_fixed_address.html
similarity index 85%
rename from networks/templates/modify_fixed_address.html
rename to networks/templates/modify_ipv4_fixed_address.html
index fd1c938..7c1addb 100644
--- a/networks/templates/modify_fixed_address.html
+++ b/networks/templates/modify_ipv4_fixed_address.html
@@ -1,16 +1,16 @@
 {% load i18n %}
 {% if request.user.is_superuser %}
-    <a href="#AddFixedNet" type="button" class="btn btn-success pull-right" data-toggle="modal">
+    <a href="#AddFixedNet4" type="button" class="btn btn-success pull-right" data-toggle="modal">
         <span class="glyphicon glyphicon-plus" aria-hidden="true"></span>
     </a>
 
     <!-- Modal pool -->
-    <div class="modal fade" id="AddFixedNet" tabindex="-1" role="dialog" aria-labelledby="AddFixedNetLabel" aria-hidden="true">
+    <div class="modal fade" id="AddFixedNet4" tabindex="-1" role="dialog" aria-labelledby="AddFixedNet4Label" aria-hidden="true">
         <div class="modal-dialog">
             <div class="modal-content">
                 <div class="modal-header">
                     <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
-                    <h4 class="modal-title">{% trans "Add Fixed Address" %}</h4>
+                    <h4 class="modal-title">{% trans "Add IPv4 Fixed Address" %}</h4>
                 </div>
                 <form  method="post" action="" role="form">{% csrf_token %}
                 <div class="modal-body">
@@ -21,10 +21,16 @@
                                 <input type="text" readonly class="form-control" name="subnet" value="{{ ipv4_network }}" required pattern="[0-9\/\.]+">
                             </div>
                         </div>
+                        <div class="form-group">
+                            <label class="col-sm-4 control-label">{% trans "MAC" %}</label>
+                            <div class="col-sm-6">
+                                <input type="text" class="form-control" name="mac" required pattern="[0-9\/\:]+">
+                            </div>
+                        </div>
                         <div class="form-group">
                             <label class="col-sm-4 control-label">{% trans "Name" %}</label>
                             <div class="col-sm-6">
-                                <input type="text" class="form-control" name="name" required pattern="[a-zA-Z0-9_]+">
+                                <input type="text" class="form-control" name="name" pattern="[a-zA-Z0-9_]+">
                             </div>
                         </div>
                         <div class="form-group">
@@ -33,15 +39,10 @@
                                 <input type="text" class="form-control" name="address" required pattern="[0-9\/\.]+">
                             </div>
                         </div>
-                        <div class="form-group">
-                            <label class="col-sm-4 control-label">{% trans "MAC" %}</label>
-                            <div class="col-sm-6">
-                                <input type="text" class="form-control" name="mac" required pattern="[0-9\/\:]+">
-                            </div>
-                        </div>
                     </div>
                 </div>
                  <div class="modal-footer">
+                     <input name="family" value="ipv4" hidden/>
                     <button type="button" class="btn btn-default" data-dismiss="modal">{% trans "Close" %}</button>
                     <button type="submit" class="btn btn-primary" name="modify_fixed_address">{% trans "Create" %}</button>
                 </div>
diff --git a/networks/templates/modify_ipv6_fixed_address.html b/networks/templates/modify_ipv6_fixed_address.html
new file mode 100644
index 0000000..fcc7eff
--- /dev/null
+++ b/networks/templates/modify_ipv6_fixed_address.html
@@ -0,0 +1,53 @@
+{% load i18n %}
+{% if request.user.is_superuser %}
+    <a href="#AddFixedNet6" type="button" class="btn btn-success pull-right" data-toggle="modal">
+        <span class="glyphicon glyphicon-plus" aria-hidden="true"></span>
+    </a>
+
+    <!-- Modal pool -->
+    <div class="modal fade" id="AddFixedNet6" tabindex="-1" role="dialog" aria-labelledby="AddFixedNet6Label" aria-hidden="true">
+        <div class="modal-dialog">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
+                    <h4 class="modal-title">{% trans "Add IPV6 Fixed Address" %}</h4>
+                </div>
+                <form  method="post" action="" role="form">{% csrf_token %}
+                <div class="modal-body">
+                    <div class="row">
+                        <div class="form-group">
+                            <label class="col-sm-4 control-label">{% trans "Subnet Pool" %}</label>
+                            <div class="col-sm-6">
+                                <input type="text" readonly class="form-control" name="subnet" value="{{ ipv6_network }}" required pattern="[0-9\/\.]+">
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label class="col-sm-4 control-label">{% trans "ID" %}</label>
+                            <div class="col-sm-6">
+                                <input type="text" class="form-control" name="id" required pattern="[0-9a-dA-D\/\:]+">
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label class="col-sm-4 control-label">{% trans "Name" %}</label>
+                            <div class="col-sm-6">
+                                <input type="text" class="form-control" name="name" pattern="[a-zA-Z0-9_]+">
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label class="col-sm-4 control-label">{% trans "Address" %}</label>
+                            <div class="col-sm-6">
+                                <input type="text" class="form-control" name="address" required pattern="[a-dA-D0-9\/\:]+">
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                 <div class="modal-footer">
+                     <input name="family" value="ipv6" hidden/>
+                    <button type="button" class="btn btn-default" data-dismiss="modal">{% trans "Close" %}</button>
+                    <button type="submit" class="btn btn-primary" name="modify_fixed_address">{% trans "Create" %}</button>
+                </div>
+                </form>
+            </div> <!-- /.modal-content -->
+        </div> <!-- /.modal-dialog -->
+    </div> <!-- /.modal -->
+{% endif %}
\ No newline at end of file
diff --git a/networks/templates/network.html b/networks/templates/network.html
index 46c79ab..c5d8cd5 100644
--- a/networks/templates/network.html
+++ b/networks/templates/network.html
@@ -68,6 +68,7 @@
             </p>
         </div>
     </div>
+
     <div class="row">
         <h3 class="page-header"></h3>
     </div>
@@ -93,31 +94,32 @@
             </div>
         </div>
     </div>
-    <div class="row">
+
+     <div class="row">
         <h3 class="page-header">{% trans "IPv4 Configuration" %}</h3>
     </div>
     <div class="row">
             <div class="col-xs-6 col-sm-4">
-                <p>{% trans "IPv4 Forwarding:" %}</p>
-                <p>{% trans "Network:" %}</p>
-                <p>{% trans "DHCP:" %}</p>
+                <p>{% trans "IPv4 Forwarding" %}:</p>
+                <p>{% trans "Network" %}:</p>
                 {% if ipv4_dhcp_range_start and ipv4_dhcp_range_end %}
-                    <p>{% trans "Start:" %}</p>
-                    <p>{% trans "End:" %}</p>
+                    <p>{% trans "DHCP" %}:</p>
+                    <p>{% trans "Start" %}:</p>
+                    <p>{% trans "End" %}:</p>
                 {% endif %}
             </div>
              <div class="col-xs-6 col-sm-4">
                 <p>
-                    {% ifequal ipv4_forward.0 'nat' %}
+                    {% ifequal net_forward.0 'nat' %}
                         {% trans "NAT" %}
                     {% endifequal %}
-                    {% ifequal ipv4_forward.0 'route' %}
+                    {% ifequal net_forward.0 'route' %}
                         {% trans "ROUTE" %}
                     {% endifequal %}
-                    {% ifequal ipv4_forward.0 'bridge' %}
+                    {% ifequal net_forward.0 'bridge' %}
                         {% trans "BRIDGE" %}
                     {% endifequal %}
-                    {% if not ipv4_forward.0 %}
+                    {% if not net_forward.0 %}
                         {% trans "ISOLATE" %}
                     {% endif %}
                 </p>
@@ -137,6 +139,7 @@
                         {%  else %}
                             <p><input name="range_start" value="{{ ipv4_dhcp_range_start }}"/></p>
                             <p><input name="range_end" value="{{ ipv4_dhcp_range_end }}"/></p>
+                            <input hidden name="family" value="ipv4"/>
                             <div class="col-xs-10 col-sm-8">
                                 <input type="submit" class="btn btn-primary btn-block" value="Apply"
                                        name="modify_dhcp_range"
@@ -147,15 +150,15 @@
                 {% endif %}
             </div>
         </div>
-    {% ifequal ipv4_forward.0 'nat' %}
+    {% if ipv4_dhcp_range_start and ipv4_dhcp_range_end %}
         {% if state %}
-            {% include 'modify_fixed_address.html' %}
+            {% include 'modify_ipv4_fixed_address.html' %}
         {% endif %}
         <div class="row">
-            <h3 class="page-header">{% trans "Fixed Address" %}</h3>
+            <h3 class="page-header">{% trans "IPv4 Fixed Address" %}</h3>
         </div>
-    {% endifequal %}
-    {% if fixed_address %}
+    {% endif %}
+    {% if ipv4_fixed_address %}
         <div class="row">
             <div class="col-xs-12">
                 <div class="panel-group" id="accordion">
@@ -175,7 +178,7 @@
                                     <input type="button" class="btn btn-default" id="filter_button" value="Filter">
                                     <button type="button" class="btn btn-default" id="filter_clear">{% trans 'Clear' %}</button>
                                 </div>
-                                <table class="table table-hover">
+                                <table id="ipv4_table" class="table table-hover">
                                     <thead>
                                     <tr>
                                         <th style="text-align: center">{% trans "MAC" %}</th>
@@ -185,14 +188,132 @@
                                     </tr>
                                     </thead>
                                     <tbody style="text-align: center">
-                                    {% for fix in fixed_address %}
+                                    {% for fix4 in ipv4_fixed_address %}
                                         <tr>
                                             <form method="post" role="form">{% csrf_token %}
-                                                <td><label class="form-control" disabled="true">{{ fix.mac }}</label></td>
-                                                <td><input class="form-control" value="{{ fix.ip }}" name="address" /></td>
-                                                <td><input class="form-control" value="{{ fix.name }}" name="name" /></td>
+                                                <td><input class="form-control" value="{{ fix4.mac }}" name="mac" readonly/></td>
+                                                <td><input class="form-control" value="{{ fix4.ip }}" name="address" /></td>
+                                                <td><input class="form-control" value="{{ fix4.name }}" name="name" /></td>
                                                 <td>
-                                                    <input hidden name="mac" value="{{ fix.mac }}"/>
+                                                    <input hidden name="family" value="ipv4"/>
+                                                    <button type="submit" class="btn btn-sm btn-primary"
+                                                            name="modify_fixed_address"
+                                                            title="Edit entry" onclick="return confirm('{% trans "Are you sure?" %}')">
+                                                        <i class="glyphicon glyphicon-save"></i>
+                                                    </button>
+                                                    <button type="submit" class="btn btn-sm btn-danger"
+                                                            name="delete_fixed_address"
+                                                            title="Delete entry" onclick="return confirm('{% trans "Are you sure?" %}')">
+                                                        <i class="glyphicon glyphicon-trash"></i>
+                                                    </button>
+                                                </td>
+                                            </form>
+                                        </tr>
+                                    {% endfor %}
+                                    </tbody>
+                                </table>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    {% endif %}
+
+    <div class="row">
+        <h3 class="page-header">{% trans "IPv6 Configuration" %}</h3>
+    </div>
+    <div class="row">
+            <div class="col-xs-6 col-sm-4">
+                <p>{% trans "IPv6 Forwarding" %}:</p>
+                <p>{% trans "Network" %}:</p>
+                {% if ipv6_dhcp_range_start and ipv6_dhcp_range_end %}
+                    <p>{% trans "DHCP" %}:</p>
+                    <p>{% trans "Start" %}:</p>
+                    <p>{% trans "End" %}:</p>
+                {% endif %}
+            </div>
+             <div class="col-xs-6 col-sm-4">
+                <p>
+                    {% if not net_forward.0 %}
+                        {% trans "ISOLATE" %}
+                    {% else %}
+                        {% trans "ROUTE" %}
+                    {% endif %}
+                </p>
+                <p>{{ ipv6_network }}</p>
+                <p>
+                    {% if ipv6_dhcp_range_start and ipv6_dhcp_range_end %}
+                        <span class="text-success">{% trans "ON" %}</span>
+                    {% else %}
+                        <span class="text-danger">{% trans "OFF" %}</span>
+                    {% endif %}
+                </p>
+                {% if ipv6_dhcp_range_start and ipv6_dhcp_range_end %}
+                    <form method="post" role="form">{% csrf_token %}
+                        {% if state %}
+                            <p>{{ ipv6_dhcp_range_start }}</p>
+                            <p>{{ ipv6_dhcp_range_end }}</p>
+                        {%  else %}
+                            <p><input name="range_start" value="{{ ipv6_dhcp_range_start }}"/></p>
+                            <p><input name="range_end" value="{{ ipv6_dhcp_range_end }}"/></p>
+                            <input hidden name="family" value="ipv6"/>
+                            <div class="col-xs-10 col-sm-8">
+                                <input type="submit" class="btn btn-primary btn-block" value="Apply"
+                                       name="modify_dhcp_range"
+                                       title="Edit DHCP Range" onclick="return confirm('{% trans "Are you sure?" %}')"/>
+                            </div>
+                        {% endif %}
+                    </form>
+                {% endif %}
+            </div>
+        </div>
+     {% if ipv6_dhcp_range_start and ipv6_dhcp_range_end %}
+        {% if state %}
+            {% include 'modify_ipv6_fixed_address.html' %}
+        {% endif %}
+        <div class="row">
+            <h3 class="page-header">{% trans "IPv6 Fixed Address" %}</h3>
+        </div>
+    {% endif %}
+    {% if ipv6_fixed_address %}
+        <div class="row">
+            <div class="col-xs-12">
+                <div class="panel-group" id="accordion">
+                    <div class="panel panel-default">
+                        <div class="panel-heading">
+                            <a data-toggle="collapse" data-parent="#accordion" href="#collapseIPv6">
+                                {% trans 'Show' %}
+                            </a>
+                        </div>
+                        <div id="collapseIPv6" class="panel-collapse collapse">
+                            <div class="panel-body">
+
+                                <div class="input-append form-inline pull-right">
+                                    <div class="form-group">
+                                        <input type="text" class="form-control" id="filter_input_ipv6">
+                                    </div>
+                                    <input type="button" class="btn btn-default" id="filter_button_ipv6" value="Filter">
+                                    <button type="button" class="btn btn-default" id="filter_clear_ipv6">{% trans 'Clear' %}</button>
+                                </div>
+                                <table id="ipv6_table" class="table table-hover">
+                                    <thead>
+                                    <tr>
+                                        <th style="text-align: center">{% trans "ID" %}</th>
+                                        <th style="text-align: center">{% trans "Address" %}</th>
+                                        <th style="text-align: center">{% trans "Name" %}</th>
+                                        <th style="text-align: center">{% trans "Action" %}</th>
+                                    </tr>
+                                    </thead>
+                                    <tbody style="text-align: center">
+                                    {% for fix6 in ipv6_fixed_address %}
+                                        <tr>
+                                            <form method="post" role="form">{% csrf_token %}
+                                                <td><input class="form-control" value="{{ fix6.id }}" name="id" readonly/></td>
+                                                <td><input class="form-control" value="{{ fix6.ip }}" name="address" /></td>
+                                                <td><input class="form-control" value="{{ fix6.name }}" name="name" /></td>
+                                                <td>
+                                                    <input hidden name="family" value="ipv6"/>
                                                     <button type="submit" class="btn btn-sm btn-primary"
                                                             name="modify_fixed_address"
                                                             title="Edit entry" onclick="return confirm('{% trans "Are you sure?" %}')">
@@ -229,15 +350,17 @@
         // add event button labeled "filter"
         $('#filter_button').click(function (event) {
             // get value
-            var filter_val = $('#filter_input').val();
+            let filter_val = $('#filter_input').val();
             if (filter_val == '') {
                 // show all
-                $('tbody tr').show();
+                $('#ipv4_table tbody tr').show();
             } else {
-                // show only matches
-                $('tbody tr:Contains(\'' + filter_val + '\')').show();
                 // hide non-matching items
-                $('tbody tr:not(:Contains(\'' + filter_val + '\'))').hide();
+                let row_not_contains4 = $('#ipv4_table tbody tr input:not([value*=\'' + filter_val + '\'])');
+                row_not_contains4.closest('tr').hide();
+                // show only matches
+                let row_contains4 =  $('#ipv4_table tbody tr input[value*=\'' + filter_val + '\']');
+                row_contains4.closest('tr').show();
             }
         });
         // add event button labeled "clear"
@@ -252,6 +375,35 @@
                 $('#filter_button').click();
             }
         });
+
+        // add event button labeled "filter"
+        $('#filter_button_ipv6').click(function (event) {
+            // get value
+            let filter_val = $('#filter_input_ipv6').val();
+            if (filter_val == '') {
+                // show all
+                $('#ipv6_table tbody tr').show();
+            } else {
+                // hide non-matching items
+                let row_not_contains6 = $('#ipv6_table tbody tr input:not([value*=\'' + filter_val + '\'])');
+                row_not_contains6.closest('tr').hide();
+                // show only matches
+                let row_contains6 =  $('#ipv6_table tbody tr input[value*=\'' + filter_val + '\']');
+                row_contains6.closest('tr').show();
+            }
+        });
+        // add event button labeled "clear"
+        $('#filter_clear_ipv6').click(function (event) {
+            $('#filter_input_ipv6').val('');
+            $('#filter_button_ipv6').click();
+        });
+
+        // trigger filter when enter key pressed
+        $('#filter_input_ipv6').keyup(function (event) {
+            if (event.keyCode == 13) {
+                $('#filter_button_ipv6').click();
+            }
+        });
     });
 </script>
 <script src="{% static "js/ace.js" %}"></script>
diff --git a/networks/views.py b/networks/views.py
index 0bc9c1d..427248a 100644
--- a/networks/views.py
+++ b/networks/views.py
@@ -86,11 +86,24 @@ def network(request, compute_id, pool):
         state = conn.is_active()
         device = conn.get_bridge_device()
         autostart = conn.get_autostart()
-        ipv4_forward = conn.get_ipv4_forward()
-        ipv4_dhcp_range_start = conn.get_ipv4_dhcp_range_start()
-        ipv4_dhcp_range_end = conn.get_ipv4_dhcp_range_end()
-        ipv4_network = conn.get_ipv4_network()
-        fixed_address = conn.get_mac_ipaddr()
+        net_forward = conn.get_network_forward()
+        dhcp_range_start = ipv4_dhcp_range_end = dict()
+
+        ip_networks = conn.get_ip_networks()
+        for family, ip_network in ip_networks.items():
+            if family == "ipv4":
+                ipv4_dhcp_range_start = conn.get_dhcp_range_start(family)
+                ipv4_dhcp_range_end = conn.get_dhcp_range_end(family)
+                ipv4_network = ip_network
+                ipv4_fixed_address = conn.get_dhcp_host_addr(family)
+            elif family == "ipv6":
+                ipv6_dhcp_range_start = conn.get_dhcp_range_start(family)
+                ipv6_dhcp_range_end = conn.get_dhcp_range_end(family)
+                ipv6_network = ip_network
+                ipv6_fixed_address = conn.get_dhcp_host_addr(family)
+            else:
+                raise Exception("Unknown Network Family")
+
         xml = conn._XMLDesc(0)
     except libvirtError as lib_err:
         error_messages.append(lib_err)
@@ -130,26 +143,34 @@ def network(request, compute_id, pool):
         if 'modify_fixed_address' in request.POST:
             name = request.POST.get('name', '')
             address = request.POST.get('address', '')
-            mac = request.POST.get('mac', '')
+            family = request.POST.get('family', 'ipv4')
+
+            if family == 'ipv4':
+                mac_duid = request.POST.get('mac', '')
+            if family == 'ipv6':
+                mac_duid = request.POST.get('id', '')
+
             try:
-                ret_val = conn.modify_fixed_address(name, address, mac)
-                messages.success(request, "Fixed Address Operation Completed.")
+                ret_val = conn.modify_fixed_address(name, address, mac_duid, family)
+                messages.success(request, "{} Fixed Address Operation Completed.".format(family))
                 return HttpResponseRedirect(request.get_full_path())
             except libvirtError as lib_err:
                 error_messages.append(lib_err.message)
             except ValueError as val_err:
                 error_messages.append(val_err.message)
         if 'delete_fixed_address' in request.POST:
-            mac = request.POST.get('mac', '')
-            conn.delete_fixed_address(mac)
-            messages.success(request, "Fixed Address is Deleted.")
+            ip = request.POST.get('address', '')
+            family = request.POST.get('family', 'ipv4')
+            conn.delete_fixed_address(ip, family)
+            messages.success(request, "{} Fixed Address is Deleted.".format(family))
             return HttpResponseRedirect(request.get_full_path())
         if 'modify_dhcp_range' in request.POST:
             range_start = request.POST.get('range_start', '')
             range_end = request.POST.get('range_end', '')
+            family = request.POST.get('family', 'ipv4')
             try:
-                conn.modify_dhcp_range(range_start, range_end)
-                messages.success(request, "DHCP Range is Changed.")
+                conn.modify_dhcp_range(range_start, range_end, family)
+                messages.success(request, "{} DHCP Range is Changed.".format(family))
                 return HttpResponseRedirect(request.get_full_path())
             except libvirtError as lib_err:
                 error_messages.append(lib_err.message)
diff --git a/vrtManager/network.py b/vrtManager/network.py
index 971cc66..ded82c3 100644
--- a/vrtManager/network.py
+++ b/vrtManager/network.py
@@ -1,7 +1,7 @@
 from vrtManager import util
 from vrtManager.IPy import IP
 from vrtManager.connection import wvmConnect
-from xml.etree import ElementTree
+from lxml import etree
 from libvirt import VIR_NETWORK_SECTION_IP_DHCP_HOST
 from libvirt import VIR_NETWORK_UPDATE_COMMAND_ADD_LAST, VIR_NETWORK_UPDATE_COMMAND_DELETE, VIR_NETWORK_UPDATE_COMMAND_MODIFY
 from libvirt import VIR_NETWORK_UPDATE_AFFECT_LIVE, VIR_NETWORK_UPDATE_AFFECT_CONFIG
@@ -77,6 +77,7 @@ class wvmNetwork(wvmConnect):
     def __init__(self, host, login, passwd, conn, net):
         wvmConnect.__init__(self, host, login, passwd, conn)
         self.net = self.get_network(net)
+        self.parent_count = len(self.get_ip_networks())
 
     def get_name(self):
         return self.net.name()
@@ -111,128 +112,163 @@ class wvmNetwork(wvmConnect):
     def delete(self):
         self.net.undefine()
 
-    def update(self, command, section, parentIndex, xml, flags=0):
+    def update(self, command, section, xml, parentIndex, flags=0):
         return self.net.update(command, section, parentIndex, xml, flags)
 
-    def get_ipv4_network(self):
+    def get_ip_networks(self):
+        ip_networks = dict()
         xml = self._XMLDesc(0)
         if util.get_xml_path(xml, "/network/ip") is None:
             return None
-        addrStr = util.get_xml_path(xml, "/network/ip/@address")
-        netmaskStr = util.get_xml_path(xml, "/network/ip/@netmask")
-        prefix = util.get_xml_path(xml, "/network/ip/@prefix")
+        tree = etree.fromstring(xml)
+        ips = tree.findall('.ip')
+        for ip in ips:
+            address_str = ip.get('address')
+            netmask_str = ip.get('netmask')
+            prefix = ip.get('prefix')
+            family = ip.get('family', 'ipv4')
+            base = 32 if family == 'ipv4' else 128
+            if prefix:
+                prefix = int(prefix)
+                binstr = ((prefix * "1") + ((base - prefix) * "0"))
+                netmask_str = str(IP(int(binstr, base=2)))
 
-        if prefix:
-            prefix = int(prefix)
-            binstr = ((prefix * "1") + ((32 - prefix) * "0"))
-            netmaskStr = str(IP(int(binstr, base=2)))
+            if netmask_str:
+                netmask = IP(netmask_str)
+                gateway = IP(address_str)
+                network = IP(gateway.int() & netmask.int())
+                netmask_str = netmask_str if family == 'ipv4' else str(prefix)
+                ret = IP(str(network) + "/" + netmask_str)
+            else:
+                ret = IP(str(address_str))
+            ip_networks[family] = ret
+        return ip_networks
 
-        if netmaskStr:
-            netmask = IP(netmaskStr)
-            gateway = IP(addrStr)
-            network = IP(gateway.int() & netmask.int())
-            ret = IP(str(network) + "/" + netmaskStr)
-        else:
-            ret = IP(str(addrStr))
-
-        return ret
-
-    def get_ipv4_forward(self):
+    def get_network_forward(self):
         xml = self._XMLDesc(0)
         fw = util.get_xml_path(xml, "/network/forward/@mode")
-        forwardDev = util.get_xml_path(xml, "/network/forward/@dev")
-        return [fw, forwardDev]
+        forward_dev = util.get_xml_path(xml, "/network/forward/@dev")
+        return [fw, forward_dev]
 
-    def get_ipv4_dhcp_range(self):
+    def get_dhcp_range(self, family='ipv4'):
         xml = self._XMLDesc(0)
-        dhcpstart = util.get_xml_path(xml, "/network/ip/dhcp/range[1]/@start")
-        dhcpend = util.get_xml_path(xml, "/network/ip/dhcp/range[1]/@end")
+        if family == 'ipv4':
+            dhcpstart = util.get_xml_path(xml, "/network/ip[not(@family='ipv6')]/dhcp/range[1]/@start")
+            dhcpend = util.get_xml_path(xml, "/network/ip[not(@family='ipv6')]/dhcp/range[1]/@end")
+        if family == 'ipv6':
+            dhcpstart = util.get_xml_path(xml, "/network/ip[@family='ipv6']/dhcp/range[1]/@start")
+            dhcpend = util.get_xml_path(xml, "/network/ip[@family='ipv6']/dhcp/range[1]/@end")
+
         if not dhcpstart or not dhcpend:
             return None
 
         return [IP(dhcpstart), IP(dhcpend)]
 
-    def get_ipv4_dhcp_range_start(self):
-        dhcp = self.get_ipv4_dhcp_range()
+    def get_dhcp_range_start(self, family='ipv4'):
+        dhcp = self.get_dhcp_range(family)
         if not dhcp:
             return None
-
         return dhcp[0]
 
-    def get_ipv4_dhcp_range_end(self):
-        dhcp = self.get_ipv4_dhcp_range()
+    def get_dhcp_range_end(self, family='ipv4'):
+        dhcp = self.get_dhcp_range(family)
         if not dhcp:
             return None
-
         return dhcp[1]
 
     def can_pxe(self):
         xml = self._XMLDesc(0)
-        forward = self.get_ipv4_forward()[0]
+        forward = self.get_network_forward()[0]
         if forward and forward != "nat":
             return True
         return bool(util.get_xml_path(xml, "/network/ip/dhcp/bootp/@file"))
 
-    def get_mac_ipaddr(self):
-        def network(doc):
-            result = []
-            for net in doc.xpath('/network/ip/dhcp/host'):
-                ip = net.xpath('@ip')[0]
-                mac = net.xpath('@mac')[0]
-                name = net.xpath('@name')
-                name = name[0] if name else ""
+    def get_dhcp_host_addr(self, family='ipv4'):
+        result = list()
+        tree = etree.fromstring(self._XMLDesc(0))
 
-                result.append({'ip': ip, 'mac': mac, 'name': name})
-            return result
+        for ipdhcp in tree.findall("./ip"):
+            if family == 'ipv4':
+                if ipdhcp.get('family') is None:
+                    hosts = ipdhcp.findall('./dhcp/host')
+                    for host in hosts:
+                        ip = host.get('ip')
+                        mac = host.get('mac')
+                        name = host.get('name','')
+                        result.append({'ip': ip, 'mac': mac, 'name': name})
+                    return result
+                else:
+                    continue
+            if family == 'ipv6':
+                hosts = tree.xpath("./ip[@family='ipv6']/dhcp/host")
+                for host in hosts:
+                    ip = host.get('ip')
+                    id = host.get('id')
+                    name = host.get('name','')
+                    result.append({'ip': ip, 'id': id, 'name': name})
+                return result
 
-        return util.get_xml_path(self._XMLDesc(0), func=network)
-    
-    def modify_fixed_address(self, name, address, mac):
-        util.validate_macaddr(mac)
-        if name:
-            new_xml = '<host mac="{}" name="{}" ip="{}"/>'.format(mac, name, IP(address))
-        else:
-            new_xml = '<host mac="{}" ip="{}"/>'.format(mac, IP(address))
-        new_host_xml = ElementTree.fromstring(new_xml)
+    def modify_dhcp_range(self, range_start, range_end, family='ipv4'):
+        if not self.is_active():
+            tree = etree.fromstring(self._XMLDesc(0))
+            if family == 'ipv4':
+                range = tree.xpath("./ip[not(@family='ipv6')]/dhcp/range")
+            if family == 'ipv6':
+                range = tree.xpath("./ip[@family='ipv6']/dhcp/range")
+            range[0].set('start', range_start)
+            range[0].set('end', range_end)
+            self.wvm.networkDefineXML(etree.tostring(tree))
 
-        tree = ElementTree.fromstring(self._XMLDesc(0))
-        hosts = tree.findall("./ip/dhcp/host")
+    def delete_fixed_address(self, ip, family='ipv4'):
+        tree = etree.fromstring(self._XMLDesc(0))
+        if family == 'ipv4':
+            hosts = tree.xpath("/network/ip[not(@family='ipv6')]/dhcp/host")
+            parent_index = self.parent_count - 2
+        if family == 'ipv6':
+            hosts = tree.xpath("/network/ip[@family='ipv6']/dhcp/host")
+            parent_index = self.parent_count - 1
+        for h in hosts:
+            if h.get('ip') == ip:
+                if family == 'ipv4':
+                    new_xml = '<host mac="{}" name="{}" ip="{}"/>'.format(h.get('mac'), h.get('name'), ip)
+                if family == 'ipv6':
+                    new_xml = '<host id="{}" name="{}" ip="{}"/>'.format(h.get('id'), h.get('name'), ip)
+
+                self.update(VIR_NETWORK_UPDATE_COMMAND_DELETE, VIR_NETWORK_SECTION_IP_DHCP_HOST,
+                            new_xml,
+                            parent_index,
+                            VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG)
+                break
+
+    def modify_fixed_address(self, name, address, mac_duid, family='ipv4'):
+        tree = etree.fromstring(self._XMLDesc(0))
+        if family == 'ipv4':
+            new_xml = '<host mac="{}" {} ip="{}"/>'.format(mac_duid, 'name="' + name + '"' if name else '', IP(address))
+            hosts = tree.xpath("./ip[not(@family='ipv6')]/dhcp/host")
+            compare_var = 'mac'
+            parent_index = self.parent_count - 2
+        if family == 'ipv6':
+            new_xml = '<host id="{}" {} ip="{}"/>'.format(mac_duid, 'name="' + name + '"' if name else '', IP(address))
+            hosts = tree.xpath("./ip[@family='ipv6']/dhcp/host")
+            compare_var = 'id'
+            parent_index = self.parent_count - 1
+        new_host_xml = etree.fromstring(new_xml)
 
         host = None
         for h in hosts:
-            if h.get('mac') == mac:
+            if h.get(compare_var) == mac_duid:
                 host = h
                 break
         if host is None:
-            self.update(VIR_NETWORK_UPDATE_COMMAND_ADD_LAST, VIR_NETWORK_SECTION_IP_DHCP_HOST, -1, new_xml,
+            self.update(VIR_NETWORK_UPDATE_COMMAND_ADD_LAST, VIR_NETWORK_SECTION_IP_DHCP_HOST, new_xml,
+                        parent_index,
                         VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG)
         else:
             # change the host
             if host.get('name') == new_host_xml.get('name') and host.get('ip') == new_host_xml.get('ip'):
                 return False
             else:
-                self.update(VIR_NETWORK_UPDATE_COMMAND_MODIFY, VIR_NETWORK_SECTION_IP_DHCP_HOST, -1, new_xml,
+                self.update(VIR_NETWORK_UPDATE_COMMAND_MODIFY, VIR_NETWORK_SECTION_IP_DHCP_HOST, new_xml,
+                            parent_index,
                             VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG)
 
-    def delete_fixed_address(self, mac):
-        util.validate_macaddr(mac)
-        tree = ElementTree.fromstring(self._XMLDesc(0))
-        hosts = tree.findall("./ip/dhcp/host")
-
-        for h in hosts:
-            if h.get('mac') == mac:
-                new_xml = '<host mac="{}" name="{}" ip="{}"/>'.format(mac, h.get('name'), h.get('ip'))
-                self.update(VIR_NETWORK_UPDATE_COMMAND_DELETE, VIR_NETWORK_SECTION_IP_DHCP_HOST, -1, new_xml,
-                            VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG)
-                break
-
-    def modify_dhcp_range(self, range_start, range_end):
-        if not self.is_active():
-            new_range = '<range start="{}" end="{}"/>'.format(range_start, range_end)
-            tree = ElementTree.fromstring(self._XMLDesc(0))
-            dhcp = tree.find("./ip/dhcp")
-            old_range = dhcp.find('range')
-            dhcp.remove(old_range)
-            dhcp.append(ElementTree.fromstring(new_range))
-
-            self.wvm.networkDefineXML(ElementTree.tostring(tree))