diff --git a/xos/api/service/vtn.py b/xos/api/service/vtn.py
index 193aaab..778c145 100644
--- a/xos/api/service/vtn.py
+++ b/xos/api/service/vtn.py
@@ -73,11 +73,12 @@
     id = ReadOnlyField()
     name = serializers.CharField(required=False)
     network_id = serializers.CharField(required=False)
+    network_name = serializers.CharField(required=False)
     mac_address = serializers.CharField(required=False)
     ip_address = serializers.CharField(required=False)
 
     class Meta:
-        fields = ('id', 'name', 'network_id', 'mac_address', 'ip_address')
+        fields = ('id', 'name', 'network_id', 'network_name', 'mac_address', 'ip_address')
 
 class FloatingAddressPairSerializer(serializers.Serializer):
     ip_address = ReadOnlyField()
@@ -86,12 +87,13 @@
 class VTNServicePortSerializer(serializers.Serializer):
     id = ReadOnlyField()
     vlan_id = serializers.IntegerField(required=False)
+    network_name = serializers.CharField(required=False)
 
     # TODO: structure this better
     floating_address_pairs = serializers.SerializerMethodField("getFloatingAddressPairs")
 
     class Meta:
-        fields = ('id', 'vlan_id')
+        fields = ('id', 'vlan_id', 'network_name')
 
     def getFloatingAddressPairs(self, obj):
          return obj.floating_address_pairs
diff --git a/xos/vtnnetport.py b/xos/vtnnetport.py
index 89d751d..3cbbf52 100644
--- a/xos/vtnnetport.py
+++ b/xos/vtnnetport.py
@@ -141,6 +141,10 @@
     def vlan_id(self):
         if not self.xos_port.instance:
             return None
+        # Only some kinds of networks can have s-tags associated with them.
+        # Currently, only VSG access networks qualify.
+        if not self.xos_port.network.template.vtn_kind in ["VSG",]:
+            return None
         tags = Tag.select_by_content_object(self.xos_port.instance).filter(name="s_tag")
         if not tags:
             return None
@@ -148,16 +152,22 @@
 
     @property
     def floating_address_pairs(self):
-        address_pairs = []
-        vsg = self.get_vsg_tenant()
-        if vsg:
-            if vsg.wan_container_ip and vsg.wan_container_mac:
-                address_pairs.append({"ip_address": vsg.wan_container_ip,
-                                      "mac_address": vsg.wan_container_mac})
+        # Floating_address_pairs is the set of WAN addresses that should be
+        # applied to this port.
 
-            if vsg.wan_vm_ip and vsg.wan_vm_mac:
-                address_pairs.append({"ip_address": vsg.wan_vm_ip,
-                                      "mac_address": vsg.wan_vm_mac})
+        address_pairs = []
+
+        # only look apply the VSG addresses if the Network is of the VSG vtn_kind
+        if self.xos_port.network.template.vtn_kind in ["VSG", ]:
+            vsg = self.get_vsg_tenant()
+            if vsg:
+                if vsg.wan_container_ip and vsg.wan_container_mac:
+                    address_pairs.append({"ip_address": vsg.wan_container_ip,
+                                          "mac_address": vsg.wan_container_mac})
+
+                if vsg.wan_vm_ip and vsg.wan_vm_mac:
+                    address_pairs.append({"ip_address": vsg.wan_vm_ip,
+                                          "mac_address": vsg.wan_vm_mac})
 
         return address_pairs
 
@@ -177,6 +187,10 @@
         return cn.net_id
 
     @property
+    def network_name(self):
+        return self.xos_port.network.name
+
+    @property
     def mac_address(self):
         return self.xos_port.mac