Github user remibergsma commented on the pull request: https://github.com/apache/cloudstack/pull/690#issuecomment-130593053 Hi @jayapalu I also worked on this, and but even with the firewall rules applied, the functionality still doesn't work because some rules are missing. So, this might fix CLOUDSTACK-8710 as it applies the rules but I think the goal should be to make two VMs in two VPCs be able to reach each other through the VPN. Anyway, I'll make a separate issue for this and keep working on it. I already figured out what rules are missing. Some other issues are also impacting this, like the missing default gateway. Let's be clear on who works on what (by assigning the issue) or else we'll do duplicate work. That's why I assigned the issue to me yesterday. Will run test to verify your fix now.
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