Note: I have two problems in my setup. (2013/06/06) metadata-agent doesn't work well in my setup. This looks the same problem with this. Resolved with Bug 972239 - root.conf.helper should be replaced by get_root_helper. dnsmasq for the second tenant's private network fails to boot depending on the timing. Need to restart dhcp-agent several times to boot.This was due to the lack of ovs_use_veth set
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