Brian,
Hi! Funny you bring this up, I just got a phone call on it today.
Basically, you can have two seperate ISPs and have incoming redundant
connections without using BGP. ISP1 will provide a block of IPs from a
portion of their CIDR block to the "company." Since this is part of ISP1s
CIDR block, they already broadcast a route to the rest of the internet
containing the company's block of IPs.
ISP2 will then also broadcast a route to ISP1's block of IPs (just the
block!!!). The tricky part comes when you try to do load balancing between
the two for incoming traffic!!!
I am making several assumptions here (that the ISPs will play nice with
each other among other things).
Feel free and give me a call if you'd like to discuss further.
-Brad Ellis
CCIE#5796
Cisco Hardware: www.optsys.net
248-293-0091
[EMAIL PROTECTED]
"Brian Wilcox" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > 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)
> > >
> > >
> > >
> > > _________________________________
> > > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to
> > [EMAIL PROTECTED]
> >
> >
> >
> >
> >
> >
> _______________________________________________________
> > Send a cool gift with your E-Card
> > http://www.bluemountain.com/giftcenter/
> >
> >
> > _________________________________
> > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to
> [EMAIL PROTECTED]
>
>
> __________________________________________________
> Do You Yahoo!?
> Get email at your own domain with Yahoo! Mail.
> http://personal.mail.yahoo.com/
>
> _________________________________
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
