JD> I have a lot of money invested in those two routers (both from JD> TP-Link). According to the tech guy there (Super Engineer they called JD> him ) blocking incoming traffic is standard practice. I'd like to JD> know how I was able to have a two way session prior to suddenly things JD> not working. Perhaps I may try the suggestion of installing 3rd party JD> software in the C7 and see what happens.
Nothing wrong with blocking incoming IPv6 by default. That's definitely good practice, and my router also blocks incoming traffic by default (it's a FritzBox 7270). However, a decent router should also have a means to selectively disable the firewall for those who need that functionality. I have the choice of opening individual TCP or UDP ports, or I can completely open access to a specific host (by name or IP).
Hmm, I did some Googling for you, and looking on the Tp-Link forums, it appears that the C7 doesn't support a firewall on IPv6. The C8 manual has nothing other than how to setup IPv6 connectivity, and I wasn't able to find any reference to IPv6 firewalls in my (very) quick search.
Sure the ISP isn't doing the filtering?
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