Avi Freedman <freedman@netaxs.com> writes:
We at Net Access have figured out a way (we believe) to get around the stability-of-routing issue for already-established TCP sessions in the above approach (multiple machines with the same IP externally, plus an internally different IP, each running gated to announce their /32(s) to your IGP) - hint: a question I asked on NANOG a few days back - And Alec Peterson (now of Erols) has figured out an even arguably slicker way to do it.
I'll see if Merit wants to have Alec and I do a presentation on the methods @ NANOG.
If you have neatly solved the problem of undetectable route flutter, whereby something distant from your similarly-numbered machines causes datagrams destined for those machines to flip among several of them at intervals (particularly relatively short intervals) then I think that would be worthy of a talk almost anywhere. Moreover, if you can generalize the "slick" solution into moving traffic by choice from one of your similarly- numbered machines to another (thinking of reboots & backups, server-driven load balancing and the like) independent of service (although you could require it to be a NAT-friendly service, I guess) then that might make a trip to Phoenix worthwhile. Sean.