Remember that Hotmail is a part of MSN, and they would have a need for that many IP addresses, what with their "Internet content" service.
Andy At 03:48 08/18/2002, Terry Lambert wrote: >Wow. > >I guess I'll address the most important point that hit home for me >from that post... > >Examining the headers, it looks like Hotmail has a full class "B" >(64.4/16); that's surprising. Why the heck do they have a full >class B?!? If you are using load balancers for distribution, then >you basically need only enough IP addresses to provide publically >accessible VIPs to the various public services you export as seperate >entities. There's no *way* they have 65,534 (subtracting out the >unusable ones) of those! > >Seems to me, you could do all of Hotmail with well under a class >C, if that. You could *probably* do it with a /28, which is the >smallest BGP routable chunk UUNET supports. > >Does this seem odd to anyone else? Is Microsoft just an address >space pig, or what? Do they consider the IPv4 address space as >part of the company's valuation when making a purchase decision, >or is this some legacy thing with Hotmail that no one at InterNIC >bothered to correct, and they are just "address rich" by chance >(this seems most likely, to me)? > >Inquiring minds want to know. > >Maybe it's just so that if a host gets RBL'ed or otherwise >blacklisted, they can switch IPs, and won't have an interruption >of email service to their customers? If that's the case, that >implies the SPAM turnover on those things is on the other of one >65536th of the time it takes to get off a blacklist. That would >imply they are sending an *incredible* amount of SPAM (obviously, >that assumes a single VIP, which is really unlikely, but it's >still within an order of magnitude, asuming a LocalDirector or >other load balancer. > >Anyway, that's what I got from the post... > >-- Terry > >To Unsubscribe: send mail to [EMAIL PROTECTED] >with "unsubscribe freebsd-chat" in the body of the message To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message