There are several sources of eBGP feeds for blackholing, they can be very useful depending on what your requirements are. You can get feeds for spam, ddos bots, bogon routes etc For iBGP this can be useful too, if you are being DDoS'd you can inject an iBGP route and have all your routers instantly blackhole traffic at your edge instead of having to static config all of them.. regards Steve On Thu, 30 Sep 2004, Abhishek Verma wrote:
Hi,
There are ways to add static routes that can be blackholed. I can understand the utility of such routes if those are installed in my forwarding table. What bewilders me is why would anyone want to advertise "blackhole" routes using say, BGP?
Is it only to prevent some sort of DoS attacks or are there other uses also of advertising black hole routes?
Thanks, Abhishek
-- Class of 2004 Institute of Technology, BHU Varanasi, India