[139131] in North American Network Operators' Group
Re: Using Region-X assigned IP space in Region-Y?
daemon@ATHENA.MIT.EDU (Owen DeLong)
Sun Mar 27 20:28:15 2011
From: Owen DeLong <owen@delong.com>
In-Reply-To: <0afe2c26c46055ecb27194d302b0d9a7@localhost>
Date: Sun, 27 Mar 2011 17:27:10 -0700
To: Mark Leonard <mark@bernoullinetworks.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mar 27, 2011, at 7:58 AM, Mark Leonard wrote:
> Hello NANOG'ers,
>=20
> This is a question that popped into my mind recently. So far my =
google-fu
> has not turned up anything of use.
>=20
> Imagine a company that has an RIR-assigned IPv4/23, and has it =
subnetted
> into a pair of /24's so that they can have replicated datacenters in =
two
> different geographical locations each running its own BGP =
infrastructure
> (using the same ASN).
>=20
> As far as I can see, this is all fine and good assuming that these two
> sites are in the same RIR's domain.
>=20
It actually doesn't matter where they are located, but, it is a lot =
cleaner to use
different ASNs as the two networks have different routing policies.
> Is it possible/allowable to move one of these datacenters to a =
different
> geographical region with a different RIR and keep using the same two
> subnets, or will a new /24 need to be requested from the new RIR?
>=20
Yes, not a problem.
> If there's a book or reference that answers this question, please let =
me
> know - I'm willing to do as much research on my own as I can.
>=20
> Thanks!
As a general rule, you can get all your space from the RIR that serves
the region where your company has its headquarters, or, you can get
space from any region where you have equipment deployed.
Owen
