[c-nsp] IPv6 routing vs IPv4 Nating

Gert Doering gert at greenie.muc.de
Mon Aug 22 17:34:43 EDT 2016


Hi,

On Mon, Aug 22, 2016 at 10:31:48PM +0100, Tom Hill wrote:
> On 22/08/16 22:11, Gert Doering wrote:
> > (but in this particular case, the issue is not so much "NAT" as 
> > "there are stateful firewalls in the way, that require symmetric
> > traffic return from the Internet" - which makes this much harder
> > than "just plain routing")
> 
> This problem exists with IPv4, just as much as it does with IPv6.

Not if you NAT the IPv4 - the NAT part enforces symmetry.

Not that I'm a big fan of NAT, but it has its uses :-)

gert
-- 
USENET is *not* the non-clickable part of WWW!
                                                           //www.muc.de/~gert/
Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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