From: Liban.Mohamed@mail.sprint.com
Date: Mon Nov 11 2002 - 17:57:23 GMT-3
The only provider that is different than the rest of the providers is
Verio, you have to announce /20. but everyOne else accept /24 as the
being the smallest, which make sense the reason of running BGP is
minimize the routing table,
-----Original Message-----
From: dave [mailto:dave@interprise.com]
Sent: Monday, November 11, 2002 3:22 PM
To: hkassa
Cc: dave; brian.albert; ccielab
Subject: Re: BGP & multihoming
I keep seeing people refer to this /19 as the smallest aggregate that
will be accepted by a provider though I have yet to meet this provider.
I have set up several customers with dual home full routes and they
announce a single /24 network or maybe a couple but very few have /19 or
better. The providers I have worked with that accepted the /24 include
Qwest, MCI, Sprint, Onvoy, and AT&T come to mind.
Dave
Hamele Kassa wrote:
>
> Brian,
>
> You do not need to secure your own registered address/es(your network
has to
> be bigger than /19 space to qualify). The IP address/es assigned to
you
> from your providers (/24 or shorter address space) will work for you
as
> long as you are running BGP(no longer prefix than /24). However you
need to
> secure and AS from ARIN(if you are multihomed you will qualify).
>
> I hope this helps.
>
> HK
>
> ----- Original Message -----
> From: "Brian T. Albert" <brian.albert@worldnet.att.net>
> To: "MADMAN" <dave@interprise.com>
> Cc: <ccielab@groupstudy.com>
> Sent: Sunday, November 10, 2002 10:51 AM
> Subject: RE: BGP & multihoming
>
> > When you say "your own registered address/es", do you mean prefixes
> assigned
> > to you from your 2 providers or obtained from another authority?
What
> other
> > authority can assign you prefixes independent of you providers, and
what
> are
> > the requirements to obtain them?
> >
> > BA
> >
> > -----Original Message-----
> > From: MADMAN [mailto:dave@interprise.com]
> > Sent: Saturday, November 09, 2002 9:12 PM
> > To: Brian T. Albert
> > Cc: ccielab@groupstudy.com
> > Subject: Re: BGP & multihoming
> >
> >
> >
> > You don't need NAT if you have your own registered address/es. No
> special
> > config required, you simply announce your public address/es
> >
> > Dave
> >
> > "Brian T. Albert" wrote:
> >
> > > In the real world can BGP multihoming to 2 different providers be
> > > accomplished without NAT for the internal networks? I have found
some
> > links
> > > on CCO http://www.cisco.com/warp/public/459/BGP-PIX.htm that show
how to
> > do
> > > it with NAT, but is it possible without. If so, can someone
supply some
> > > config examples or good links.
> > >
> > > Thanks
> > >
> > > Brian T. Albert
> > > brian.albert@worldnet.att.net
> >
> > --
> > David Madland
> > CCIE# 2016
> > Sr. Network Engineer
> > Qwest Communications Inc.
> > 612-664-3367
> > dave@interprise.com
> >
-- David Madland CCIE# 2016 Sr. Network Engineer Qwest Communications 612-664-3367"You don't make the poor richer by making the rich poorer." --Winston Churchill
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