Friends and colleagues, At NANOG 48 I talked about a community flow-spec service we were looking at trying to make work. This is the idea of using IETF RFC 5575 to pass around flow-based rules, in this case, primarily for dropping unwanted packets. This technology is not as widely deployed as traditional RTBH techniques for a number of reasons. However, we thought perhaps it was widely used enough, or could be, to justify what might be a helpful and free 3rd party feed of flow-spec routes to keep our networks a little bit cleaner. A trial of this feed based on the traditional bogon routes can be had by contacting me directly. We realize the traditional IPv4 reserved, special and unallocated IPv4 bogon address is dwindling. Maybe there is room for some other type of feed, but to justify that, we're looking to see if even enough people would set up this presumably simpler feed to help us and the community get some more experience with multi-hop flow-spec. Details in getting it up and running in your own test networks are here: <http://www.cymru.com/jtk/misc/community-fs.html> John