Re: Unique AS number when connecting to two different ISP's?

From: Gregory Gombas (ggombas@gmail.com)
Date: Sun Jul 29 2007 - 17:08:48 ART


What are you losing by using a private ASN? You can still advertise
your own dedicated IP address space via both providers can't you? Your
ISP's simply needs to remove that private AS when passing the update
to other ISP's...

Am I missing something here?

On 7/29/07, Herbert Maosa <asawilunda@googlemail.com> wrote:
>
> If you dont have your own ASN, you will most likely have to use a private
> ASN to connect to the two ISPs. Remember that if you use the ISPs ASN then
> you are an extension of that ISP. Using the private ASN in this case will
> permit you to be totally provider independent.
>
> regards,
>
> Herbert.
>
>
> On 7/29/07, Gregory Gombas <ggombas@gmail.com> wrote:
> >
> > When connecting to the internet via two different ISP's, why is it
> > necessary to have a unique AS?
> >
> > What if you simply configured your BGP router with the same AS number
> > as one of your ISP's?
> >
> > Considering there are only 64511 unique AS numbers, I assume that most
> > if not all the AS numbers are already taken. What do companies do in
> > the case they cannot get their own AS number and need to multihome?
> >
> > Thanks,
> > Greg
> >
> >
> _______________________________________________________________________
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>
>
>
> --
> Kindest regards,
> hm



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