diff --git a/neutron/agent/l3/dvr_edge_router.py b/neutron/agent/l3/dvr_edge_router.py
index ee624eae142..c94fbd3714f 100644
--- a/neutron/agent/l3/dvr_edge_router.py
+++ b/neutron/agent/l3/dvr_edge_router.py
@@ -317,6 +317,8 @@ class DvrEdgeRouter(dvr_local_router.DvrLocalRouter):
         try:
             ip_lib.add_ip_address(fip_cidr, interface_name,
                                   namespace=self.snat_namespace.name)
+        except ip_lib.IpAddressAlreadyExists:
+            pass
         except RuntimeError:
             LOG.warning("Unable to configure IP address for centralized "
                         "floating IP: %s", fip['id'])
diff --git a/neutron/agent/linux/ip_lib.py b/neutron/agent/linux/ip_lib.py
index 09a371f1834..887dc265d4e 100644
--- a/neutron/agent/linux/ip_lib.py
+++ b/neutron/agent/linux/ip_lib.py
@@ -829,6 +829,7 @@ def get_device_mtu(device_name, namespace=None):
 
 NetworkNamespaceNotFound = privileged.NetworkNamespaceNotFound
 NetworkInterfaceNotFound = privileged.NetworkInterfaceNotFound
+IpAddressAlreadyExists = privileged.IpAddressAlreadyExists
 
 
 def add_ip_address(cidr, device, namespace=None, scope='global',