We just went through this not that long ago... Getting an ASN is $500 if I recall - getting a /24 portable subnet from ARIN is *easy* if the specific purpose is for *multihoming*.... called ARIN and confirmed....
Paul -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Matt Addison Sent: Thursday, November 01, 2007 11:00 AM To: The Father; Cisco-NSP Mailing List Subject: Re: [c-nsp] Inbound redundancy with two ISPs Multihoming is a valid reason for justifying an ASN, however to get a block from ARIN they would need to justify a full /24 of immediate use, /23 within 12 months (the smallest block you can request when multihoming is a /22). http://www.arin.net/policy/nrpm.html#four3 Can't they get a /24 from one of their providers? ~Matt -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of The Father Sent: Thursday, November 01, 2007 10:43 AM To: Cisco-NSP Mailing List Subject: Re: [c-nsp] Inbound redundancy with two ISPs Is multihoming a valid reason even if they can't justify a /24 worth of IP addresses? I would have thought that ASNs were hard to get since there's a finite number of them (currently anyways). Oh and I forgot to mention in my original post that is there still a valid solution if BGP is not an option? Jose P.S. Thanks for the replies so far guys. Edward A. Trdina III wrote: > Well, need more info... They have to have at least a /24 from that > provider, and then both ISPs should be willing to do BGP on their (the > customers behalf). Otherwise, they should spply for an ASN from the > RiR. Multihoming is a valid reason for an ASN per ARIN. > > > Regards, > > Edward A. Trdina III > > Senior Network/Systems Engineer > > Clayton Kendall, Inc. > 150 West Street > East Pittsburgh, PA 15112 > > Office (412)829-2201 x31 > Cell (412)334-8000 > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of The Father > Sent: Thursday, November 01, 2007 8:45 AM > To: [email protected] > Subject: [c-nsp] Inbound redundancy with two ISPs > > One of our customers is looking to us to provide a failover method for > their two internet access links. Normally this wouldn't be a problem > but the customer has public IPs that were assigned to them from ISP-A > (we're ISP-B) and they use them for servers behind ISP-B's connection. > They would like it so that when ISP-A goes down, the link that we > provide becomes primary and inbound and outbound traffic. Does anyone > know of a Cisco (or other vendor) solution that could take care of this? > I've tried explaining that for customers in these situations, BGP and > public ASN/CIDR blocks are what's normally required for this to work. > > Thanks. > > Jose > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
