>Howard, > >For the sake of IP address conservation, I would like to believe what you >say. > >Unfortunately I happen to know several small companies that were able to >secure entire Class C's with nary a protest from their ISP's, and yes they >are all globally routed. The most addresses any one of those companies is >using within that class range is 10 of those addresses - waste galore. >Apparently many ISP's aren't as vigilant as they should be.
There can be legitimate nuances, such as having a multihomed /24 using PA address space, with the associated routing policy in a registry. This still doesn't assure global reachability. The other side of this may come not immediately, but when the less-vigilant ISP applies for additional address space and is denied because it can't show it allocated wisely. There still has been no explanation if the poster will settle for PA space or wants PI. Getting a non-multihomed PA /24 is trivial, understanding that it will form part of the provider's aggregate. Getting PA /24 that will be multihomed by cooperating providers is more difficult, if only for reasons of global reachability. Getting PI /24 is conceivable, but very difficult. RFC 2050 does specify that "administrative convenience", read among other things as not having to renumber, should not be considered as part of address allocation policy. > > > >""Howard C. Berkowitz"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... >> >where can i get a class C ip address block ? I check everywhere .... >> >everyone is saying they only provide a block of /19. >> > >> >Anyone can help ? >> > >> >Thanks >> > >> >Shella >> > >> What do you want to do with it? In the real world, it can be very >> hard to get a provider-independent /24, and even harder to get it >> globally routed. Your best solution may be to design your >> environment to be renumbering-friendly, and get a /24 from your >> upstream provider. >> >> In general, you will have to demonstrate 50% immediate use of a /20 >> to get your own allocation. >> >> Incidentally, don't think Class C in getting assignments, think /24 >> (if that's what you actually need). Class-based allocation is long >> obsolete in the public network, regardless of what Cisco teaches in > basic courses. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=27016&t=26814 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
