Inbound is a little more difficult than outbound, but I believe you can work
with your ISP to accomplish this. You could have redundant connections to a
single ISP if you were using address space assigned from them only. You
really wouldn't even need BGP for this, but if you wanted to use it you
could then use a private ASN. Since you only have one ISP, it's not
necessary to advertise your specific subnet; the aggregate advertised by the
ISP would suffice.
The specific strategy used depends on how paranoid you are. If you think
it's a realistic possibility that your entire ISP might fail, then it's a
good idea to get a connection to a different ISP and run BGP. However, I
think many companies would be safe with redundant connections to the same
ISP, yet to different locations.
I may be wrong about this, but the above is correct as far as I understand
it. I'm pretty new to this, so I hope someone with more experience than I
responds to this thread.
John
> > since there are other ways to achieve redundancy.
>
> Please advise what "other ways" there are to achieve
> redundancy for 'inbound' traffic via the Internet.
>
> Brian
>
>
> --- John Neiberger <[EMAIL PROTECTED]> wrote:
> > To get an ASN you have to show that you either have
> > a unique routing policy
> > or that you are multihomed to separate providers.
> > Sure, there are lots of
> > companies that have multiple internet connections,
> > but how many *really*
> > need to have redundant connections to separate ISPs?
> > Not really that many,
> > since there are other ways to achieve redundancy.
> >
> > Now, with that said, we applied for and received an
> > ASN a couple of months
> > ago and they have already issued over 300 since
> > then. At that rate, it
> > won't be too long before we run into trouble.
> >
> > John
> >
> > > I've been studying BGP, but something that keeps
> > bothering me when I
> > study
> > > it is that there are less than 65000 , (64511 to
> > be exact) public AS
> > > numbers. It would seem to me that these would
> > quickly run as out, as I
> > would
> > > think that there are that many corporations
> > world-wide that connected to
> > the
> > > internet via BGP. Any thoughts on this?
> > >
> > >
> > > Thanks,
> > > Joey Fowler
> > >
> > > We are told that talent creates its own
> > opportunities. But it sometimes
> > > seems that intense desire creates not only its
> > own opportunities, but its
> > > own talents.
> > > - Eric Hoffer (1902-1983 American Author &
> > Philosopher)
> > >
> > >
> > >
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> >
> >
> >
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