If you want connectivity from both AT&T and Sprint with your one block, you have plenty of justification from ARIN to get your AS assigned assuming both feeds come into one location. However, it looks like you are asking two providers to announce the same block at two different locations (different origin AS on each). If this is the case, it won't happen, you'd be better off justifying an allocation of the additional space from AT&T. -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Mike Donahue Sent: Wednesday, January 16, 2008 13:37 To: nanog@merit.edu Subject: request for help w/ ATT and terminology Hi. I'm by no means an ip/networking expert, and we're having some difficulty communicating with the boffins at AT&T. Any input/advice/translation would be appreciated. We own our own class C netblock. Our previous provider, Sprint, had no problem "adding" it to their network/advertising it (that circuit is now disconnected). We've started using an AT&T colo facility, and we're having a lot of trouble trying to get AT&T to do the same thing there that Sprint was able to do for us. AT&T is refusing to advertise our netblock/path it to our cabinet unless we have an AS number. ARIN has refused to give us one on the grounds (rightly so) that we're not multi-homed. AT&T says they'll give us a temporary ASN, and want us to do eBGP for our netblock. They sent the technical information over today, and they want two distinct routers to act as the bgp peers... Anyway, it's all getting (for us) pretty complicated. We're a fairly small firm and just want an Ethernet handoff with our IP block on it. Sprint didn't blink at the request, but AT&T... We're getting a good rate from AT&T for the IP services because it's at their colo. Switching back to Sprint would definitely be more costly. Questions: 1. Is what we're asking for unusual/uncalled for? 2. What's the technical terminology for the request for AT&T to simply start advertising our netblock called? I'm wondering if they're not understanding our request. Any other comments/input/suggestions welcomed. Thanks in advance, Mike Donahue WATG