[openstack-dev] [Neutron] Default routes to SNAT gateway in DVR

Wuhongning wuhongning at huawei.com
Fri May 16 07:57:28 UTC 2014


Hi DVRers,

I didn't see any detail documents or source code on how to deal with routing packet from DVR node to SNAT gw node. If the routing table see a outside ip, it should be matched with a default route, so for the next hop, which interface will it select?

Maybe another standalone "interconnect subnet" per DVR is needed, which connect each DVR node and optionally, the SNAT gw node. For packets from dvr node->snat node, the interconnect subnet act as the "default route" for this host, and the next hop will be the snat node.
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