diff --git a/deploy-virt-overcloudrc b/deploy-virt-overcloudrc
index b1339a265..217cccddb 100644
--- a/deploy-virt-overcloudrc
+++ b/deploy-virt-overcloudrc
@@ -2,6 +2,7 @@
 export NODES_JSON=instackenv.json
 export NeutronPublicInterface=eth0
 export OVERCLOUD_LIBVIRT_TYPE=qemu
+export UNDERCLOUD_NAMESERVER=192.168.122.1
 export NETWORK_CIDR=10.0.0.0/8
 export FLOATING_IP_START=192.0.2.45
 export FLOATING_IP_END=192.0.2.64
diff --git a/elements/undercloud-post-config/os-refresh-config/post-configure.d/98-undercloud-setup b/elements/undercloud-post-config/os-refresh-config/post-configure.d/98-undercloud-setup
index dd7f2bebe..9a6f1ac93 100755
--- a/elements/undercloud-post-config/os-refresh-config/post-configure.d/98-undercloud-setup
+++ b/elements/undercloud-post-config/os-refresh-config/post-configure.d/98-undercloud-setup
@@ -56,7 +56,7 @@ ENDPOINT_LIST="--glance-password $UNDERCLOUD_GLANCE_PASSWORD
     --ceilometer-password $UNDERCLOUD_CEILOMETER_PASSWORD"
 
 REGISTER_SERVICE_OPTS=
-    
+
 # Needed by ceilometer user in register-endpoint
 keystone role-create --name=ResellerAdmin
 
@@ -81,7 +81,8 @@ jq "." <<EOF > $NETWORK_JSON
         "cidr": "$NETWORK_CIDR",
         "allocation_start": "$DHCP_START",
         "allocation_end": "$DHCP_END",
-        "name": "$PHYSICAL_NETWORK"
+        "name": "$PHYSICAL_NETWORK",
+        "nameserver": "${UNDERCLOUD_NAMESERVER:-192.168.122.1}"
     }
 }
 EOF