Great Circle Associates Firewalls
(July 1997)
 

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Subject: Re: Two ISP's to one DMZ
From: "Mark Horn [ Net Ops ]" <mhorn @ funb . com>
Date: Mon, 7 Jul 1997 09:51:16 -0400
To: Paul Ferguson <pferguso @ cisco . com>
Cc: marc @ sniff . ct-net . de, firewalls @ GreatCircle . COM
In-reply-to: <3 . 0 . 3 . 32 . 19970706230215 . 006b6378 @ lint . cisco . com>; from Paul Ferguson on Sun, Jul 06, 1997 at 11:02:15PM -0400
References: <3 . 0 . 3 . 32 . 19970706100857 . 006d037c @ lint . cisco . com> <3 . 0 . 3 . 32 . 19970706230215 . 006b6378 @ lint . cisco . com>

Paul Ferguson says:
>Uh, because the original question asked how to connect two
>or more different routin domains (ISP's) to a shared (or
>perhaps switched) media interconnect point, and BGP is
>the de facto method for exterior routing between dissimilar
>administrative routing domans. 

Is BGP the only answer?  We have several ISP's providing service to us.
We have our own NIC assigned address block, and a NIC assigned AS number.
We've been trying (for several months) to set up BGP routing between all
of our providers.  But we've run into trouble.

One of the providers doesn't want to set up peering with us.  Their claim
is that you can have redundant ISP's through other methods than setting up
BGP peering.  When pressed, they've been conspicuously quiet about what
these other methods are.

Is there another way to set up redundancy between two ISP's without doing
BGP peering?

-- 
Mark Horn <mhorn @
 funb .
 com>

PGP Public Key available from: http://www.es.net/hypertext/pgp.html
PGP KeyID/fingerprt: 00CBA571/32 4E 4E 48 EA C6 74 2E  25 8A 76 E6 04 A1 7F C1

Attachment: pgpYMBHVqGCVv.pgp
Description: PGP signature


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