Hello, I'm trying to setup my own router (Linux VM with iptables) to use. I'm using the following topology :
Internet ---- public-network ---- OpenStack-Router ---- Private-OpenStack-Network ---- Dedicated-Router (linux VM) ---- Private-OpenStack-Network-2 ---- Private-Instances [image: Images intégrées 1] My 'Private-instances' use the Dedicated-Router as their gateway. For some reason a ping (or other) request; from a private instance; can reach the internet but the response stops at the Dedicated-Router's interface in 'Private-OpenStack-Network-2'. I cannot get this topology to work. I'm pretty sure about my iptables rules in the 'Dedicated-Router'. Did anyone try this setup ? Any clues as to why it might not work ? For info : OpenStack Havanna, 3 compute-nodes with GRE tunneling. Best Regards,
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