True unless you get it out of an old class a or b assignment. Brian "Sonic" Whalen Success = Preparation + Opportunity
On Wed, 16 Jan 2002, MADMAN wrote: > I have yet to have an ISP refuse to announce a customers /24 network > so I don't think it's that common. > > Dave > > Eric wrote: > > > > IMHO - You will need at least a /21 as some ISP's set policies that will > > filter anything less. > > > > Best bet is to pick up a copy of: Internet Routing Architectures, Second > > Edition. ISBN# 1-57870-233-X. > > > > This book will also introduce you to the third item to consider when > > connecting to two ISP's: Symmetry. > > > > Regards, > > Eric > > > > ----- Original Message ----- > > From: "John Neiberger" > > To: > > Sent: Tuesday, January 15, 2002 7:37 PM > > Subject: Re: BGP AS Number [7:32107] > > > > > To make connections to separate ISPs work, you need to have > > > some address space assigned to you that is large enough to be > > > routed successfully. This generally means that you have to > > > have at least a /24 prefix. > > > > > > Once you've successfully gotten that address space from one of > > > your providers you can apply at www.arin.net to get an ASN. > > > > > > If you were only considering multiple connections to the same > > > ISP one option would be to use a private ASN, or you might not > > > need to use BGP at all. > > > > > > However, to do what you're considering, you need to have your > > > own ASN and address space. > > > > > > Also, for the nitpickers I'm being overly general on > > > purpose. This can get to be much more complicated if you want > > > it to be. :-) > > > > > > HTH, > > > John > > > > > > > > > ________________________________________________ > > > Get your own "800" number > > > Voicemail, fax, email, and a lot more > > > http://www.ureach.com/reg/tag > > > > > > > > > ---- On Tue, 15 Jan 2002, Shawn Xu ([EMAIL PROTECTED]) > > > wrote: > > > > > > > As far as we know, when you connect to two ISPs for load > > > balancing and > > > > fault > > > > tolerance, you have to configure BGP, please refer > > > > > > > > http://www.cisco.com/warp/public/459/40.html > > > > > > > > but from the above examples, you have to have your own AS > > > number. If I > > > > don't > > > > have my own AS number, I can not connect to two ISPs? > > > > > > > > Please help, thanks. > > > > > > > > Shawn Xu > > > > > > > > > > > ________________________________________________________________ > > > _ > > > > MSN Photos is the easiest way to share and print your photos: > > > > http://photos.msn.com/support/worldwide.aspx > > > [EMAIL PROTECTED] > -- > David Madland > Sr. Network Engineer > CCIE# 2016 > Qwest Communications Int. Inc. > [EMAIL PROTECTED] > 612-664-3367 > > "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32190&t=32107 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
