diff --git a/xos/observers/vbng/model-deps b/xos/observers/vbng/model-deps
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/xos/observers/vbng/model-deps
@@ -0,0 +1 @@
+{}
diff --git a/xos/observers/vbng/run.sh b/xos/observers/vbng/run.sh
index 9e888db..7829ac0 100755
--- a/xos/observers/vbng/run.sh
+++ b/xos/observers/vbng/run.sh
@@ -1,4 +1,4 @@
-if [[ ! -e ./vcpe-observer.py ]]; then
+if [[ ! -e ./vbng-observer.py ]]; then
     ln -s ../../xos-observer.py vbng-observer.py
 fi
 
diff --git a/xos/observers/vbng/start.sh b/xos/observers/vbng/start.sh
index badd718..5ceff27 100755
--- a/xos/observers/vbng/start.sh
+++ b/xos/observers/vbng/start.sh
@@ -1,4 +1,4 @@
-if [[ ! -e ./vcpe-observer.py ]]; then
+if [[ ! -e ./vbng-observer.py ]]; then
     ln -s ../../xos-observer.py vbng-observer.py
 fi
 
diff --git a/xos/observers/vbng/steps/sync_vbngtenant.py b/xos/observers/vbng/steps/sync_vbngtenant.py
new file mode 100644
index 0000000..64494f8
--- /dev/null
+++ b/xos/observers/vbng/steps/sync_vbngtenant.py
@@ -0,0 +1,85 @@
+import os
+import requests
+import socket
+import sys
+import base64
+from django.db.models import F, Q
+from xos.config import Config
+from observer.syncstep import SyncStep
+from observer.ansible import run_template_ssh
+from core.models import Service
+from cord.models import VCPEService, VCPETenant, VBNGTenant, VBNGService
+from hpc.models import HpcService, CDNPrefix
+from util.logger import Logger, logging
+
+VBNG_API = "http://<vnbg-addr>/onos/virtualbng/privateip/"
+
+# hpclibrary will be in steps/..
+parentdir = os.path.join(os.path.dirname(__file__),"..")
+sys.path.insert(0,parentdir)
+
+logger = Logger(level=logging.INFO)
+
+class SyncVBNGTenant(SyncStep):
+    provides=[VCPETenant]
+    observes=VCPETenant
+    requested_interval=0
+
+    def __init__(self, **args):
+        SyncStep.__init__(self, **args)
+
+    def fetch_pending(self, deleted):
+        if (not deleted):
+            objs = VBNGTenant.get_tenant_objects().filter(Q(enacted__lt=F('updated')) | Q(enacted=None),Q(lazy_blocked=False))
+        else:
+            objs = VBNGTenant.get_deleted_tenant_objects()
+
+        return objs
+
+    def defer_sync(self, o, reason):
+        o.backend_register="{}"
+        o.backend_status = "2 - " + reason
+        o.save(update_fields=['enacted','backend_status','backend_register'])
+        logger.info("defer object %s due to %s" % (str(o), reason))
+
+    def sync_record(self, o):
+        logger.info("sync'ing VBNGTenant %s" % str(o))
+
+        vcpes = VCPETenant.get_tenant_objects().all()
+        vcpes = [x for x in vcpes if (x.vbng is not None) and (x.vbng.id == o.id)]
+        if not vcpes:
+            raise Exception("No vCPE tenant is associated with vBNG %s" % str(o.id))
+        if len(vcpes)>1:
+            raise Exception("More than one vCPE tenant is associated with vBNG %s" % str(o.id))
+
+        vcpe = vcpes[0]
+        sliver = vcpe.sliver
+
+        if not sliver:
+            raise Exception("No sliver associated with vBNG %s" % str(o.id))
+
+        external_ns = None
+        for ns in sliver.networkslivers.all():
+            if (ns.ip) and (ns.network.template.visibility=="private") and (ns.network.template.translation=="none"):
+                # need some logic here to find the right network
+                external_ns = ns
+
+        if not external_ns:
+            self.defer_sync(o, "private network is not filled in yet")
+            return
+
+        private_ip = external_ns.ip
+
+        if not o.routeable_subnet:
+            print "This is where we would call Pingping's API"
+            o.routeable_subnet = "placeholder-from-observer"
+
+            # r = requests.post(VBNG_API + "%s" % private_ip, )
+            # public_ip = r.json()
+            # o.routeable_subnet = public_ip
+
+        o.save()
+
+    def delete_record(self, m):
+        pass
+