[Jool-list] BIB-less NAT64

Ruben Herold ruben at via.de
Tue Sep 5 14:51:42 CDT 2017


On Tue, Sep 05, 2017 at 01:39:08PM +0200, Tore Anderson wrote:

        hi,
 
> Right. A variant of this could possibly be to allow re-use of IPv4
> transport addresses only for connections originating from the same client:
> 
> IPv6 client:port         Public v4:port        Dest v4:port
> [2001:db8::1]:60000  ->  192.0.2.1:54321  ->   ebay.co.uk:443
> [2001:db8::1]:50000  ->  192.0.2.1:54321  ->   amazon.com:443
> [2001:db8::a]:40000  ->  192.0.2.1:43210  ->   ebay.co.uk:443
> [2001:db8::a]:30000  ->  192.0.2.1:43210  ->   amazon.com:443
> [.................]  ->  192.0.2.1:54321  ->   [............]
> 
mhh looks for me wrong. What happens if the source will connect with
more than one connectionat the same time to the same target and port:

 IPv6 client:port         Public v4:port        Dest v4:port
 [2001:db8::1]:60000  ->  192.0.2.1:54321  ->   ebay.co.uk:443
 [2001:db8::1]:50000  ->  192.0.2.1:54321  ->   ebay.co.uk:443
 [2001:db8::1]:40000  ->  192.0.2.1:54321  ->   amazon.com:443
 [2001:db8::a]:40000  ->  192.0.2.1:43210  ->   amazon.com:443
 [2001:db8::a]:30000  ->  192.0.2.1:43210  ->   amazon.com:443
 [.................]  ->  192.0.2.1:54321  ->   [............]


>From my point of view this will break connections.



        Ruben


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