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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Effective ways to deal with DDoS attacks?
Then you are pushing out /32's and peers would need to accept them. Then someone will want to blackhole /30's, /29's, etc. Route bloat. Yum! Additionally you are creating a way to basically destroy the Internet as a whole. One kiddie gets ahold of a router, say of a large backbone provider, takes one of their aggregate blocks (/16? /10? /8?) and splits it into /32 announcements. Anyways, some providers already allow you to set a community on a route, and they will inturn "blackhole" it for you. I believe Teleglobe does this for some customers and I know UUNet does this for all customers. On Wed, 1 May 2002, Wojtek Zlobicki wrote: > > > > What processes and/or tools are large networks using to > > > identify and limit the impact of DDoS attacks? > > > > A great deal of thought is being expended on this question, I am certain, > > however, how many of these thought campaings have born significant fruit > yet, > > I do not know. > > How about the following : > > We develop a new community , being fully transitive (666 would be > appropriate ) and either build into router code or create a route map to > null route anything that contains this community. The effect of this being > the distribution of the force of the attack. > > This aside, how effective would be using a no export community with ones > peers (being non transitive, it would still distribute the force of the > attack). > > >
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