Subj : Connect...??
To   : Tony Langdon
From : Nicholas Boel
Date : Thu Jan 12 2017 06:01 pm

Hello Tony,

On Fri Jan 13 2017 10:42:00, Tony Langdon wrote to Nicholas Boel:

TL> Same on mine, manufacturers dumbing things down too much, because
TL> there is a key difference between port forwarding and packet
TL> filtering.  In port forwarding, the internal host can use a different
TL> port to what the public sees. With packet filtering, that's normally
TL> not possible, because the router is doing nothing more than accepting
TL> or blocking traffic to a specific port on a LAN host.  It is not
TL> rewriting packets.

I have these settings. In my port forwarding section, I can set the service
name, port range, local IP, local port, and protocol. In my inbound IPv6
firewall rules, I can set service name, remote IP/CIDR, local IP or fixed
interface ID, port range, and protocol.

So yes, IPv4 you can forward ports to others, whereas IPv6 you can only open
ports directly to the address you specify.

TL> So, when you're using IPv6, an extra constraint is that the host needs
TL> to be listening on the same port that the public sees (My router only
TL> has a single field for the port in IPv6).

Same with mine.

Regards,
Nick

... "Не знаю. Я здесь только работаю."
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