BGP On Host

[Rick Duvall]

I wasn't sure if it was BGP or if it was something else.  Definetly between
routers would be using BGP.  But, I heard at an apache conference somebody
was doing something where the machine would send a keepalive to the directly
connected Cisco router, and if the router didn't receive the keepalive
signal, BGP would re-route the traffic to the other host.  Both hosts are on
different ISP, but have the same IP address.  Traffic is routed from the
requester to the closest logical server.  I think UltraDNS does this with
their DNS servers as well.

Anyway, I don't know what the host uses to send the keepalive to the Cisco
router, or even how to configure the BGP to make it work.  I was wondering
if somebody on the list has set up the same configuration on a couple of
fault tolerant FreeBSD boxes.

Sincerely,

Rick Duvall
----- Original Message ----- 
From: <jan.muenther at nruns.com>
To: "Rick Duvall" <rduvall at onlinehighways.net>
Cc: <freebsd-questions at freebsd.org>
Sent: Tuesday, March 30, 2004 11:26 AM
Subject: Re: BGP On Host


> > (mirrored).  If both hosts are up, the traffic is routed to the closes
> > server to the person making the request.  Otherwise, if one server is
down,
> > traffic is automatically re-routed to the other box.
>
> That is not what BGP is made for. It's an exterior routing protocol for
> routes between AS.
>