Jon, What you suggest is exactly what Team Cymru does by using the IANA pages This only works for the clueful though. It doesn't matter how much the RIR's and IANA announce the briningin into circulation of /8s there always seems to be those who are not watching for such issues, or who are totally unaware that the filters should and do change. What Daniel is suggesting is a more pro-active approach on behalf of the RIR's. The advantage is that it may reach those who normally would not even be aware that they have an issue. My personal opinion is that such an effort should be applauded. John Crain Jon Lawrence wrote:
The real solution to this problem is to make it possible for ISPs to closely track RIR allocations in their filters in a semi-automated way. There may still be a few days of delay before a new allocation is fully routable but ISPs can compensate for that with internal processes.
Why can't ISPs subscribe to a feed of all new RIPE allocations in near real-time?
Personally I think this is a great idea and if we hear from a lot of operators actually willing to take such feeds it may become reality. However there are a number of serious issues with something like this, not the least of which are the liability issues in case this goes wrong very dynamically and semi-automatdly.
It is certainly something to progress if there is enough interest.
However I think the current proposal shold go ahead too because the false positives are a real problem now
Daniel
Could we not just have a file somewhere that shows all ranges allocated to RIR's. ISP's could then script to generate their filters.
Jon