From: Jay Hennigan (jay@west.net)
Date: Fri Apr 04 2003 - 18:13:25 GMT-3
> Any thoughts on the following question from a associate ?
>
> Issue: A number of Kiosks stations out in the field need to send data back
> to Home Office servers. The Kiosks stations are configured to communicate
> with 1 IP address. The Home Office needs to be configured with two different
> ISP, 2 routers, 2 switches, and 2 servers for redundancy. 5 months down the
> line, another site in a different physical location will be constructed for
> site-to-site failover.
> Question: What is the best way to design this type of network, where the
> Kiosks stations are only configured to communicate with 1 IP? What type of
> options do I have?
The killer in the real world is "two different ISP", because unless you
are going to jump through the political and financial hoops to establish
your own ASN and IP space, BGP won't be an option. This gets more complex
when you add your second physical location.
1. BGP between your ISPs (expensive).
2. Install an ethernet-to-ethernet router at each kiosk that establishes
two tunnels, one to each ISP, essentially a dual-homed VPN.
3. Same as 2 but in software at the kiosk. (Lose the "one IP" requirement).
Can the kiosks be configured to make name-based rather than IP-based
connections? DNS with a suitably short TTL is a possible solution.
-- Jay Hennigan - CCIE #7880 - Network Administration - jay@west.net NetLojix Communications, Inc. - http://www.netlojix.com/ WestNet: Connecting you to the planet. 805 884-6323
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