Need provider suggestions - BGP transit over GRE tunnel

Franck Martin franck at
Sat Jan 29 05:49:34 CST 2011

Just make sure you don't shoot yourself in the foot by telling the best route to the end of the tunnel is via the tunnel itself...

I use it too: but because I have no other choice.

----- Original Message -----
From: "Robert Johnson" <fasterfourier at>
To: "C. Jon Larsen" <jlarsen at>, nanog at
Sent: Saturday, 29 January, 2011 6:48:50 PM
Subject: Re: Need provider suggestions - BGP transit over GRE tunnel

My network spans a multicity geographic area using microwave radio
links. The point of the GRE tunnel is to allow me to establish a BGP
session to another AS using a consumer grade Internet connection
(cheap) over the public Internet. I don't want to build out additional
microwave paths to a new datacenter to become multihomed.

On Fri, Jan 28, 2011 at 5:36 PM, C. Jon Larsen <jlarsen at> wrote:
> I have read your email a few times and i dont see how this makes sense.
> Why do you need a public AS and PI space? Your gre tunnel wont need it or be
> able to use it. A gre tunnel is just a replacement for a physical pipe.
> If your datacenter based presence goes down, you will need a pipe at your
> office, or some other location speaking bgp that can annouce your block
> anyway.

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