nanog mailing list archives
Re: Where to buy Internet IP addresses
From: Joe Greco <jgreco () ns sol net>
Date: Mon, 4 May 2009 06:39:15 -0500 (CDT)
I think that they have to be forwarded. What do you do if people chain three routers? How does your actual CPE know to dish out a /60 and not a /64 or something? What if someone chains four? What if someone puts three devices behind the second? These are weird topologies, sure, but coming up with some algorithm to handle some of them and not others is going to be too complicated, and leave some people without a workable solution. Forwarding these requests up to the ISP's router and having several PDs per end customer is in my opinion the best way to go.
How is it the ISP's router is able to handle this? Be specific. Now explain why that can't be made to work at the CPE level. There hasn't been a lot of consensus on exactly how this should work (haberman, bykim, arunt, rao, stenberg, etc). so I am conveniently doing a bit of handwaving, perhaps. One of the goals of providing larger address spaces was to reduce (and hopefully eliminate) the need to burn forwarding table entries where doing so isn't strictly necessary. When we forget this, it leads us to the same sorts of disasters that we currently have in v4. ... JG -- Joe Greco - sol.net Network Services - Milwaukee, WI - http://www.sol.net "We call it the 'one bite at the apple' rule. Give me one chance [and] then I won't contact you again." - Direct Marketing Ass'n position on e-mail spam(CNN) With 24 million small businesses in the US alone, that's way too many apples.
Current thread:
- RE: Where to buy Internet IP addresses, (continued)
- RE: Where to buy Internet IP addresses TJ (May 04)
- RE: Where to buy Internet IP addresses Barry Shein (May 05)
- Re: Where to buy Internet IP addresses Florian Weimer (May 03)
- Re: Where to buy Internet IP addresses Mikael Abrahamsson (May 04)
- Re: Where to buy Internet IP addresses Nathan Ward (May 04)
- Re: Where to buy Internet IP addresses Mikael Abrahamsson (May 04)
- Re: Where to buy Internet IP addresses Nathan Ward (May 04)
- Re: Where to buy Internet IP addresses Mikael Abrahamsson (May 04)
- Re: Where to buy Internet IP addresses bmanning (May 04)
- Re: Where to buy Internet IP addresses Leo Bicknell (May 04)
- Re: Where to buy Internet IP addresses Joe Greco (May 04)
- Re: Where to buy Internet IP addresses Joe Maimon (May 04)
- Re: Where to buy Internet IP addresses Joe Greco (May 04)
- Re: Where to buy Internet IP addresses Bill Stewart (May 04)
- Re: Where to buy Internet IP addresses Stephen Sprunk (May 04)
- Re: Where to buy Internet IP addresses Charles (May 04)
- Re: Where to buy Internet IP addresses Youssef Ghorbal (May 07)
- Re: Where to buy Internet IP addresses Carsten Bormann (May 04)
- Re: Where to buy Internet IP addresses Robert E. Seastrom (May 07)
- Re: Where to buy Internet IP addresses Ricky Beam (May 04)
- Re: Where to buy Internet IP addresses Jack Bates (May 04)