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


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---- 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
> 
> 
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