The only thing that sounds worse would be to give them address space and tell them to NAT the traffic based on the path it takes. Keegan Holley Network Engineer, Network Managed Services SunGard Availability Services Mezzanine Level MC-95 401 N. Broad St. Philadelphia, PA 19108 215.446.1242 (office) 609.670.2149 (cell) Keegan.Holley@sungard.com ___________________________________________ Keeping People and Information Connected® http://www.availability.sungard.com "Wayne E. Bouchard" <web@typo.org> 10/08/2007 05:53 PM To Keegan.Holley@sungard.com cc nanog <nanog@merit.edu>, owner-nanog@merit.edu Subject Re: How Not to Multihome Slightly different approach... Needing to multihome is justification for requesting an ASN. Is this strictly necessary? No. You can source the block on his behalf but that creates various routing inconsistancies. There are other even more unpleasant ways of doing this that are perfectly feasible. (I'd be willing to use them if I was the client since I know what I'm doing but I would not be willing to have a client of mine use them because it would scare the hell out of me.) -Wayne On Mon, Oct 08, 2007 at 05:43:03PM -0400, Keegan.Holley@sungard.com wrote:
I have a client that wants us to advertise an IP block assigned by another ISP. I know that the best practice is to have them request an AS number
from ARIN and peer with us, etc. However, I cannot find any information
that states as law. Does anyone know of a document or RFC that states this?
Thanks,
Keegan
Wayne Bouchard web@typo.org Network Dude http://www.typo.org/~web/