diff --git a/xos/cord/models.py b/xos/cord/models.py
index a8a2602..a4e7501 100644
--- a/xos/cord/models.py
+++ b/xos/cord/models.py
@@ -1,5 +1,5 @@
 from django.db import models
-from core.models import Service, PlCoreBase, Slice, Instance, Tenant, TenantWithContainer, Node, Image, User, Flavor, Subscriber
+from core.models import Service, PlCoreBase, Slice, Instance, Tenant, TenantWithContainer, Node, Image, User, Flavor, Subscriber, NetworkParameter, NetworkParameterType, Port
 from core.models.plcorebase import StrippedCharField
 import os
 from django.db import models, transaction
@@ -678,6 +678,36 @@
                 self.bbs_account = None
                 super(VCPETenant, self).save()
 
+    def find_or_make_port(self, instance, network, **kwargs):
+        port = Port.objects.filter(instance=instance, network=network)
+        if port:
+            port = port[0]
+        else:
+            port = Port(instance=instance, network=network, **kwargs)
+            port.save()
+        return port
+
+    def save_instance(self, instance):
+        with transaction.atomic():
+            instance.volumes = "/etc/dnsmasq.d"
+            super(VCPETenant, self).save_instance(instance)
+
+            if instance.isolation in ["container", "container_vm"]:
+                lan_networks = [x for x in instance.slice.networks.all() if "lan" in x.name]
+                if not lan_networks:
+                    raise XOSProgrammingError("No lan_network")
+                port = self.find_or_make_port(instance, lan_networks[0], ip="192.168.0.1", port_id="unmanaged")
+                port.set_parameter("c_tag", self.volt.c_tag)
+                port.set_parameter("s_tag", self.volt.s_tag)
+                port.set_parameter("device", "eth1")
+
+                wan_networks = [x for x in instance.slice.networks.all() if "wan" in x.name]
+                if not wan_networks:
+                    raise XOSProgrammingError("No wan_network")
+                port = self.find_or_make_port(instance, wan_networks[0])
+                port.set_parameter("next_hop", value="10.0.1.253")   # FIX ME
+                port.set_parameter("device", "eth0")
+
     def save(self, *args, **kwargs):
         if not self.creator:
             if not getattr(self, "caller", None):