In one embodiment, an autoroute filter list may be configured with a list of traffic identifiers. Accordingly, at a tunnel head-end node, an autoroute operation may be performed to configure the routing of all traffic in a network onto an appropriate tunnel except for traffic identified in the autoroute...http://www.google.com.tw/patents/US7843918?utm_source=gb-gplus-share專利 US7843918 - Selectively forwarding traffic through tunnels in a computer network
