Github user dsclose commented on the pull request:
https://github.com/apache/cloudstack/pull/1519#issuecomment-217110131
Currently I'm investigating @ustcweizhou suggestions above. He's quite
correct about not adding the mark for eth0 and I think I've reproduced the
problem he reported on NICs higher than eth3.
Once we trigger the creation of eth4, the routing table Table_eth4 gets
added multiple times - but only once with the fwmark limitation. This prevents
any traffic being routed correctly on the VR - even to the point of not being
able to connect to it from the HV.
@swill @rhtyd - I'll squash and force push this soon. I want to incorporate
the snippets given by @ustcweizhou and verify that they work first.
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