diff --git a/example.yaml b/example.yaml
index cfa6137..99d595f 100644
--- a/example.yaml
+++ b/example.yaml
@@ -1,6 +1,7 @@
 bondethernets:
   BondEthernet0:
     interfaces: [ GigabitEthernet3/0/0, GigabitEthernet3/0/1 ]
+    mac: 02:b0:b0:01:02:03
     mode: xor
     load-balance: l2
 
@@ -14,6 +15,7 @@ interfaces:
 
   HundredGigabitEthernet12/0/0:
     lcp: "ice12-0-0"
+    mac: f2:01:00:12:00:00
     mtu: 9000
     addresses: [ 192.0.2.17/30, 2001:db8:3::1/64 ]
     sub-interfaces:
@@ -74,6 +76,7 @@ loopbacks:
   loop1:
     lcp: "bvi1"
     mtu: 2000
+    mac: 02:de:ad:01:be:ef
     addresses: [ 10.0.1.1/24, 2001:db8:1::1/64 ]
 
 bridgedomains:
diff --git a/intest/hippo-empty.yaml b/intest/hippo-empty.yaml
index 35e1811..68c59bc 100644
--- a/intest/hippo-empty.yaml
+++ b/intest/hippo-empty.yaml
@@ -1,17 +1,21 @@
 interfaces:
   GigabitEthernet3/0/0:
     mtu: 1500
+    mac: 00:25:90:0c:05:00
     state: down
     description: Not Used
   GigabitEthernet3/0/1:
     mtu: 1500
+    mac: 00:25:90:0c:05:01
     state: down
     description: Not Used
   HundredGigabitEthernet12/0/0:
     mtu: 1500
+    mac: b4:96:91:b3:b1:10
     state: down
     description: Not Used
   HundredGigabitEthernet12/0/1:
     mtu: 1500
+    mac: b4:96:91:b3:b1:11
     state: down
     description: Not Used
diff --git a/intest/hippo12.yaml b/intest/hippo12.yaml
index 6cf930f..d198bc3 100644
--- a/intest/hippo12.yaml
+++ b/intest/hippo12.yaml
@@ -70,6 +70,7 @@ interfaces:
 loopbacks:
   loop0:
     lcp: "lo0"
+    mac: de:ad:00:be:ef:00
     addresses: [ 10.0.0.1/32, 2001:db8::1/128 ]
   loop1:
     mtu: 2000
diff --git a/intest/hippo13.yaml b/intest/hippo13.yaml
index 28a9d0b..1ec0cc8 100644
--- a/intest/hippo13.yaml
+++ b/intest/hippo13.yaml
@@ -1,5 +1,6 @@
 bondethernets:
   BondEthernet0:
+    mac: 02:b0:b0:00:00:01
     interfaces: [ GigabitEthernet3/0/0, GigabitEthernet3/0/1 ]
 
 interfaces:
diff --git a/intest/hippo3.yaml b/intest/hippo3.yaml
index cc7911c..ddcce4b 100644
--- a/intest/hippo3.yaml
+++ b/intest/hippo3.yaml
@@ -1,5 +1,6 @@
 bondethernets:
   BondEthernet1:
+    mac: 02:b0:b0:00:00:02
     interfaces: [ GigabitEthernet3/0/0, GigabitEthernet3/0/1 ]
     mode: round-robin
   
diff --git a/intest/hippo4.yaml b/intest/hippo4.yaml
index eaca1e4..9a0b2f9 100644
--- a/intest/hippo4.yaml
+++ b/intest/hippo4.yaml
@@ -1,5 +1,6 @@
 interfaces:
   GigabitEthernet3/0/0:
+    mac: 12:00:ba:03:00:00
     mtu: 9216
     sub-interfaces:
       100:
diff --git a/intest/hippo7.yaml b/intest/hippo7.yaml
index c4c0991..db363e7 100644
--- a/intest/hippo7.yaml
+++ b/intest/hippo7.yaml
@@ -1,5 +1,6 @@
 interfaces:
   GigabitEthernet3/0/0:
+    mac: 02:ff:ba:03:00:00
     mtu: 9216
     sub-interfaces:
       100:
diff --git a/intest/hippo8.yaml b/intest/hippo8.yaml
index ed56410..92bce2d 100644
--- a/intest/hippo8.yaml
+++ b/intest/hippo8.yaml
@@ -45,6 +45,7 @@ interfaces:
 loopbacks:
   loop11:
     mtu: 3000
+    mac: de:ad:00:be:ef:11
     lcp: "bvi11"
     addresses: [ 2001:db8:1::1/64, 192.0.2.1/30 ]
 
diff --git a/intest/hippo9.yaml b/intest/hippo9.yaml
index 1a83d97..0200740 100644
--- a/intest/hippo9.yaml
+++ b/intest/hippo9.yaml
@@ -1,5 +1,6 @@
 bondethernets:
   BondEthernet0:
+    mac: 02:b0:b0:00:00:00
     interfaces: [ GigabitEthernet3/0/0, GigabitEthernet3/0/1 ]
 
 interfaces:
@@ -11,6 +12,7 @@ interfaces:
     description: "LAG #2"
 
   HundredGigabitEthernet12/0/0:
+    mac: 02:ff:ba:12:00:00
     lcp: "ice0"
 
   HundredGigabitEthernet12/0/1:
diff --git a/intest/intest.sh b/intest/intest.sh
index 2aff749..eca54b2 100755
--- a/intest/intest.sh
+++ b/intest/intest.sh
@@ -25,5 +25,9 @@
   
       echo " - Checking that from $j to $j is empty"
       ../vppcfg plan -s ../schema.yaml -c $j -o /tmp/vppcfg-exec_${j}_${j}_null
+      [ -s /tmp/vppcfg-exec_${j}_${j}_null ] && {
+	  echo " - ERROR Transition is not empty"
+          cat /tmp/vppcfg-exec_${j}_${j}_null
+      }
     done
   done
diff --git a/vpp/reconciler.py b/vpp/reconciler.py
index d0bef87..9e43781 100644
--- a/vpp/reconciler.py
+++ b/vpp/reconciler.py
@@ -613,6 +613,9 @@ class Reconciler():
                 continue
             instance = int(ifname[4:])
             cli="create loopback interface instance %d" % (instance)
+            ifname, iface = loopback.get_by_name(self.cfg, ifname)
+            if 'mac' in iface:
+                cli += " mac %s" % iface['mac']
             self.cli['create'].append(cli);
         return True
 
@@ -627,6 +630,8 @@ class Reconciler():
             lb = bondethernet.get_lb(self.cfg, ifname)
             if lb:
                 cli += " load-balance %s" % lb
+            if 'mac' in iface:
+                cli += " hw-addr %s" % iface['mac']
             self.cli['create'].append(cli);
         return True
 
@@ -727,6 +732,9 @@ class Reconciler():
 
     def sync(self):
         ret = True
+        if not self.sync_loopbacks():
+            self.logger.warning("Could not sync Loopbacks in VPP")
+            ret = False
         if not self.sync_bondethernets():
             self.logger.warning("Could not sync bondethernets in VPP")
             ret = False
@@ -742,18 +750,46 @@ class Reconciler():
         if not self.sync_addresses():
             self.logger.warning("Could not sync interface addresses in VPP")
             ret = False
+        if not self.sync_phys():
+            self.logger.warning("Could not sync PHYs in VPP")
+            ret = False
         if not self.sync_admin_state():
             self.logger.warning("Could not sync interface adminstate in VPP")
             ret = False
         return ret
 
+    def sync_loopbacks(self):
+        for ifname in loopback.get_loopbacks(self.cfg):
+            if not ifname in self.vpp.cache['interface_names']:
+                ## New loopback
+                continue
+            vpp_iface = self.vpp.cache['interface_names'][ifname]
+            config_ifname, config_iface = loopback.get_by_name(self.cfg, ifname)
+            if 'mac' in config_iface and config_iface['mac'] != str(vpp_iface.l2_address):
+                cli="set interface mac address %s %s" % (config_ifname, config_iface['mac'])
+                self.cli['sync'].append(cli)
+        return True
+
+    def sync_phys(self):
+        for ifname in interface.get_phys(self.cfg):
+            if not ifname in self.vpp.cache['interface_names']:
+                ## New interface
+                continue
+            vpp_iface = self.vpp.cache['interface_names'][ifname]
+            config_ifname, config_iface = interface.get_by_name(self.cfg, ifname)
+            if 'mac' in config_iface and config_iface['mac'] != str(vpp_iface.l2_address):
+                cli="set interface mac address %s %s" % (config_ifname, config_iface['mac'])
+                self.cli['sync'].append(cli)
+        return True
+
     def sync_bondethernets(self):
         for ifname in bondethernet.get_bondethernets(self.cfg):
             if ifname in self.vpp.cache['interface_names']:
-                vpp_bond_sw_if_index = self.vpp.cache['interface_names'][ifname].sw_if_index
-                vpp_members = [self.vpp.cache['interfaces'][x].interface_name for x in self.vpp.cache['bondethernet_members'][vpp_bond_sw_if_index]]
+                vpp_iface = self.vpp.cache['interface_names'][ifname]
+                vpp_members = [self.vpp.cache['interfaces'][x].interface_name for x in self.vpp.cache['bondethernet_members'][vpp_iface.sw_if_index]]
             else:
                 ## New BondEthernet
+                vpp_iface = None
                 vpp_members = []
 
             config_bond_ifname, config_bond_iface = bondethernet.get_by_name(self.cfg, ifname)
@@ -769,7 +805,10 @@ class Reconciler():
                         bondmac = member_iface.l2_address
                     cli="bond add %s %s" % (config_bond_ifname, member_iface.interface_name)
                     self.cli['sync'].append(cli);
-            if bondmac and 'lcp' in config_iface:
+            if vpp_iface and 'mac' in config_iface and str(vpp_iface.l2_address) != config_iface['mac']:
+                cli="set interface mac address %s %s" % (config_ifname, config_iface['mac'])
+                self.cli['sync'].append(cli);
+            elif bondmac and 'lcp' in config_iface:
                 ## TODO(pim) - Ensure LCP has the same MAC as the BondEthernet
                 ## VPP, when creating a BondEthernet, will give it an ephemeral MAC. Then, when the
                 ## first member is enslaved, the MAC address changes to that of the first member.
diff --git a/vpp/vppapi.py b/vpp/vppapi.py
index 5802b3f..c828a79 100644
--- a/vpp/vppapi.py
+++ b/vpp/vppapi.py
@@ -272,17 +272,19 @@ class VPPApiDumper(VPPApi):
 
     def cache_to_config(self):
         config = {"loopbacks": {}, "bondethernets": {}, "interfaces": {}, "bridgedomains": {}, "vxlan_tunnels": {} }
-        for idx, iface in self.cache['bondethernets'].items():
+        for idx, bond_iface in self.cache['bondethernets'].items():
             bond = {"description": ""}
-            if iface.sw_if_index in self.cache['bondethernet_members']:
-                members = [self.cache['interfaces'][x].interface_name for x in self.cache['bondethernet_members'][iface.sw_if_index]]
+            if bond_iface.sw_if_index in self.cache['bondethernet_members']:
+                members = [self.cache['interfaces'][x].interface_name for x in self.cache['bondethernet_members'][bond_iface.sw_if_index]]
                 if len(members) > 0:
                     bond['interfaces'] = members
 
-            mode = bondethernet.int_to_mode(iface.mode)
+            mode = bondethernet.int_to_mode(bond_iface.mode)
             bond['mode'] = mode
             if mode in ['xor', 'lacp']:
-                bond['load-balance'] = bondethernet.int_to_lb(iface.lb)
+                bond['load-balance'] = bondethernet.int_to_lb(bond_iface.lb)
+            iface = self.cache['interfaces'][bond_iface.sw_if_index]
+            bond['mac'] = str(iface.l2_address)
             config['bondethernets'][iface.interface_name] = bond
 
         for numtags in [ 0, 1, 2 ]:
@@ -296,6 +298,7 @@ class VPPApiDumper(VPPApi):
                         continue
                     loop = {"description": ""}
                     loop['mtu'] = iface.mtu[0]
+                    loop['mac'] = str(iface.l2_address)
                     if iface.sw_if_index in self.cache['lcps']:
                         loop['lcp'] = self.cache['lcps'][iface.sw_if_index].host_if_name
                     if iface.sw_if_index in self.cache['interface_addresses']:
@@ -315,6 +318,8 @@ class VPPApiDumper(VPPApi):
                     if not self.cache['interfaces'][idx].flags & 1: # IF_STATUS_API_FLAG_ADMIN_UP
                         i['state'] = 'down'
 
+                    if iface.interface_dev_type == 'dpdk':
+                        i['mac'] = str(iface.l2_address)
                     i['mtu'] = iface.mtu[0]
                     if iface.sub_number_of_tags == 0:
                         config['interfaces'][iface.interface_name] = i