At 14:52 26/06/01 -0700, Paul A Vixie wrote:
o source filtering at high bandwidth
i consider this nonsoluable. some routers can already do it, but making the ownership and deployment of such routers be the minimum price of entry into the peering game is a fatal nonstarter of an idea. and the infrastructure for expressing netblock ownership in a way that could be used to build accurate and reliable filters (assuming the routers could load such filters and act on them at wire speed) isn't there. i think this way lies madness.
source filtering is an edge problem, at current technology levels. but how to ensure that other people do it at THEIR edge is a separate problem from how to do it at YOUR edge. the former is social/economic, the latter is technical.
I have found a fairly easy way to make this start happening. When putting out an RFI/RFP for some Internet connectivity/Web hosting/VPN/etc. - in addition to putting in the obvious rtt minimums, SLAs, OC-48 backbones, 24x7 NOCs, etc. I have started to include the following: - anti-spoofing source filtering Even if the ISP can't do it - the sales and marketing people are now driving the change process. The more RFI/RFPs that ISPs see that contain such a mandatory section, the more the network will become a better place to live. There are more than enough consultants/people on this list that can drive this process very quickly. -Hank PS I also include "human response to abuse@ email within 24 hours" :-)