On 2010-01-12 21:27, Ben Jencks wrote: > This is obviously a rookie question, but I haven't found anything by > searching. I'm looking to set up a small testbed to simulate our > internal network topology, and I want to have a realistic BGP table > from the fake "upstream" routers. Ideally what I'd like to do is dump > the BGP table from our production routers, strip the immediate > neighbor AS, and load the table into Quagga or OpenBGPD to advertise. > I'm running into two problems: how do you dump BGP tables in a > machine-parseable format from IOS, and how do you make the route > server advertise the routes as they were in the original table, > including the full AS-path, communities, etc? If Quagga/OpenBGPD > aren't the right tools, I'm happy to use something else.
Use libbgpdump from ris.ripe.net to get raw data from http://data.ris.ripe.net/ (you're looking for newest bview file), and dump them using bgpdump to something easily to parse. Then using bgpsimple (from googlecode) simulate a peer with specific number of prefixes advertised - up to the limit of the contents of the file. You can spoof next-hop, AS, etc. As for the attribute manipulation, fire up a couple of VMWare/VirtualBox/vimage instances with quagga/openbgpd to accept the prefixes from bgpsimple and mangle them in some manner. Here you go. -- "Everything will be okay in the end. | Łukasz Bromirski If it's not okay, it's not the end. | http://lukasz.bromirski.net
