For those wondering on how does IPv6 work when it comes to ports you can use this handy tool.
It scans for common open ports and you can see if you configure your firewall correctly.
By default the D-Link, Huawei WS5200 and the Huawei WS7100 we supply will have the firewall on. This means none of the allocated IPv6 ips on you devices will have open ports. The firwall will also block ping requests.
The Huawei WS5200 and WS7100 has pretty basic Firewall settings. It's either ON or OFF. ON meaning blocks everything coming in on IPv6. OFF meaning which ever ip is allocated if there is services running with open ports they will be exposed. This is only an issue if you running service that has open ports and are not secured.
The D-Link has quite a nice firewall setting. It allows you to open specific ports to specific IPv6 IP address or the whole prefix allocated to you or a specific range of IPv6 addresses.
A simple rule to open a specific port you intend to use for the whole prefix allocated to you will look like this. This will open up port 26895 to allow remote traffic to come in. In my case it' a torrent client. It will allow it to the whole /62 allocated to you.
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When using
https://www64.chappell-family.co.uk/cgi-bin6/ipscanfastjs.cgi with the firewalls turned on like they are by default
@blunt ports will be blocked and the test should show this.
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You need to specify rule to intentionally block incoming traffic but you can if you want to.
When the firewall is turned off it would expose any open ports to the internet if there is a running service listing on that port. For example.
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