[c-nsp] Multihoming

[Heath Jones]

You could probably get away with a second provider if you implement NAT and
don't really need to provide services to the outside world from that
location. For example if it was an office connection and you really just
needed internet access with some redundancy.

If things are more complicated than that - for instance if you are hosting
incoming vpn connections, web services etc from that site, you really should
look into getting your own IP space when you start talking about multiple
providers, for instance if ISP1 goes down and you are providing these
services, you are pretty much screwed. As Walter suggested, you can play
with DNS a bit and move things around - but it is a very manual time
consuming process and services will be unworkable during the transition.


On 15 September 2010 10:00, Rocker Feller <rocker.rockerfeller at gmail.com>wrote:

> Hi,
>
> I am pretty new to this concept and would appreciate any guidance on how as
> a customer I can achieve redundacy with autofailover between 2 ISPs.
>
> Can I achieve this when I have a /29 from ISP1 and do not have my own PI
> ips?
>
> All my services dns, email, wan are hosted by the ISP1.
>
> Any assistance on this will be appreciated.
>
> Rocker
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