Re: Resent: Allocating a LIR an IP block per use
- Date: Mon, 6 Dec 1999 11:06:42 +0100 (CET)
On Sun, 5 Dec 1999, samir Koleilat wrote:
>> No you'r not the only one in this case, we have customers with AS
>> number and we are ambarrassed they do not announce there IP because it's
>> icluded in our total agregate IP space, we will be very happy to obtain
>> 2 to 4 ( \23 or \22) for each of them according to there needs, maybe
>> RIPE should help us to find a solution about this situation.
Many small ISPs, sooner or later, want to become multi-homed and they meet
with that problem. All of them usually want to run BGP even if they are
assigned a small portion of address space. On the other hand, huge ISPs
(e.g. Sprint) use to filter BGP announcements for prefix longer than a
certain value (usually /19 or /20). Therefore, such multi-homed customers
can have serious connectivity problems.
The best approach for small BGP customers is to use NAT. See the slides on
that at http://www.ietf.org/proceedings/98dec/slides/nat-multihome-98dec/.
Regards,
Beri
--
----- ___ Berislav Todorovic, Network Engineer
---- / / /____ ____ _/_ -- KPNQwest N.V. - IP NOC (formerly EUnet)
--- /--- / // //___/ / --- Singel 540, 1017 AZ Amsterdam, NL
-- /___ /___// //___ /_ ---- Phone: (+3120) 530-5333; Fax: (+3120) 622-4657
- --- Email: beri@localhost
