Use second ip address in order to avoid any ip range problem

inventory/group_vars/all.yml

@@ -68,7 +68,7 @@ dns_setup: true
 dns_domain: "{{ cluster_name }}"
 #
 # # Ip address of the kubernetes dns service
-dns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(253)|ipaddr('address') }}"
+dns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(2)|ipaddr('address') }}"
 
 # For multi masters architecture:
 # kube-proxy doesn't support multiple apiservers for the time being so you'll need to configure your own loadbalancer