Benny, >> jj wrote: >> Outsiders can't even tell it's not a normal prefix (which is >> a blessing and a curse), let alone state that they also >> purchased the prefix from some other ISP.
> Benny Amorsen wrote: > I think that is a curse. It means that in normal circumstances > I can expect to see what was supposed to be my unique addresses > advertised by routing protocols as part of a larger aggregated > space. A curse it is but a blessing it is also. Look from the other prospective: I'm the ISP that provides you the block: - I give you a /48 out of my /32. The /32 costs me 2.5k/yr so the /48 costs me $0.04/yr plus overhead. BFD. - When we get out of this "everyone-gives-free-transit-to-everyone" business model which does not make sense, I don't want to pay for your traffic because what I sold you or gave you is the address, not the bandwidth. So I reserved a /36 out of my /32 for people like you and I route it directly to null0. - Why is this a blessing? Because there will be enough people that filter longer prefixes. What we are talking here is private addresses. So if you peer with a business partner and they get a specific route to the /48 I gave you, fine. Otherwise, it does not matter if the traffic goes into an unreachable or if it goes into my null0, and there are a fair amount of people that says it's preferable to route traffic that you want to go nowhere into a blackhole instead of bouncing it. > I would just prefer that /my/ non-routable addresses stayed > out of the global routing tables. Look back from your own prospective again: What you want is your /48 not to be there; if a /32 that encompasses your /48 is announced and if the /36 that encompasses your /48 is routed to null0 at the destination, it's a blessing. Michel. -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
