Github user remibergsma commented on the pull request: https://github.com/apache/cloudstack/pull/1214#issuecomment-163865718 @terbolous In the example above, I show a cloud that uses RFC1918 space only. That works fine, as these routes are more specific than the generic ones I add. Indeed the route to the internal DNS server is already added. But when this internal DNS server resolves something, there is no route for it. This is the case the internal DNS server resolves something to an internal RFC1918 address that is likely reachable from the internal gateway.
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