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From Dhruv Chopra <dhruv.cho...@shephertz.com>
Subject Re: MINA on multihomed machine
Date Thu, 28 Nov 2013 15:33:06 GMT
I see - yes that can happen with mobile providers or with ISPs who do
NAT444.
Didn't understand this part in your reply
"So a small port range may be a good idea if you are planning to have a
huge amout of connections."
Are you referring to the local ephemeral port range on the server machine?


On Thu, Nov 28, 2013 at 8:53 PM, Steve Ulrich <steve.ulrich@proemion.com>wrote:

> > dhruv.chopra@shephertz.co.in wrote
> >
> > Thanks! that clarifies things.. I guess I would run in to this 64k
> > limit only when in my tests I run the clients and the MINA server on
> > the same machine.
>
> There may be a catch if your clients are mobiles or within another NAT-ed
> network. Most mobile providers hide their users behind NAT-gateways, so the
> connecting "client IP" is the gateway of the provider. Depending on the
> logic and number of routers/router IPs, it may be a problem or not.
> We had some problems with mobile providers at argentinia, where the
> oversimplified logic (port= ++lastport) of the gateway caused some trouble
> with a few hundreds of devices. That was some years ago and they managed to
> solve it after some time.
> So a small port range may be a good idea if you are planning to have a
> huge amout of connections.
>
> regards
>
> Steve
>
>
>

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