              public_hostname=__index__.vellum.__zone__
              etcd_cluster=$etcd_ip
              EOF
-@@ -206,7 +148,7 @@ resources:
+@@ -206,7 +145,7 @@ resources:
              mkdir -p /etc/chronos
              cat > /etc/chronos/chronos.conf << EOF
              [http]

 
             # Log all output to file.
             exec > >(tee -a /var/log/clearwater-heat-vellum.log) 2>&1
-            set -x
-
-            # Set up the signaling network namespace on each boot by creating an init file and
-            # linking to it from runlevel 2 and 3

-
-            # Also set up the signaling namespace now.
-            /etc/init.d/signaling_namespace
+            sysctl -w net.ipv6.conf.lo.disable_ipv6=0
 
             # Configure the APT software source.
             echo 'deb __repo_url__ binary/' > /etc/apt/sources.list.d/clearwater.list
@@ -193,11 +135,8 @@ resources:
             etcd_ip=__etcd_ip__
             [ -n "$etcd_ip" ] || etcd_ip=__private_mgmt_ip__
             cat > /etc/clearwater/local_config << EOF
