[c-nsp] Simple NAT based IOS failover between providers

[Gert Doering]

Hi,

On Mon, Sep 26, 2005 at 12:32:57PM -0400, Rodney Dunn wrote:
> The gotcha I think with this is that any existing flow that
> is being NAT'ed will fail until it times out because
> a new translation on the new interface will have to be created.

Yes - but that's unavoidable anyway, given the fact that "ISP B"
won't know to route "ISP A"'s IP addresses back over the link

For web surfing (-alike) traffic, consisting of lots of short TCP
session, this shouldn't be a major problem.

For things like "working over Citrix / remote desktop" this could
be fairly annoying...

gert
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de