Hi all, --> I created an openstack set up in my networking lab. ---> Vmware installed in one of the blade server then ubuntu 18.04 installed as OS. ---> openstack 5.3.1 version successfully installed in this os ---> In my lab we are using 192.168.x.x/16 network ---> In openstack I created an external network with 192.168.x.x/16 ----> In openstack I created an internal network with 172.16.x.x/16(for testing) -----> then I created 1 external network(provider network),1 router,1 private cloud . ------> In internal network I created 2 instance (172.16.0.2&172.16.0.3)this two instance pinging each other and i am able assign floating ip(192.168.x.x) to this instance ----> Now my problem is I created a original instance with my network(192.168.x.x)in provider network(that instance directly attached to external (provider network)) --->This instance launched successfully and interface ip also our internal ip and dns also showing correct but i am not able to ping our any one of the lab network ip,internet also not available. please help me on this Thanks & Regards Midhunlal N B +918921245637