[Sky Q Hub] What does 'Enable IPv6 on LAN side' actually do?

[abcdefghij123]

On the Sky Q Hub (ER115) there is an option to 'Enable IPv6 on LAN side'. 

The information provided 'Enable/Disable all LAN IPv6 features.', is not good enough to even remotely know what it does; obviously enables/disables IPv6, but who/what/where/when/how.

What does it actually do?

Is it just firewall rules? or is there more to it?

I've currently turned off IPv6 DHCP and router announcements because i want to handle DHCP myself, which is why i'm interested in knowing exactly what it does.

[Chrisee]

@abcdefghij123 think you need to read up on how IP6 addressing actually works try here as a start .. Sky fully supports IP6 and there is no reason that I am aware of to think its a security risk. 

[abcdefghij123]

Thanks for the irrelevant answer @Chrisee.

Back on topic.  What IPv6 features are enabled with the 'Enable/Disable all LAN IPv6 features.' option?

[Chrisee]

@abcdefghij123 sigh if you read the link I provided you would have the answer but whatever.

[abcdefghij123]

@Cihrisee Sigh, another irrelevant comment. 

I want to know about the option on the Sky Q Hub.  The website does it talk about the Sky Q Hub, therefore it is completely irrelevant and does not answer this question!

Quite clearly 'Enable/Disable all LAN IPv6 features' does NOT enable ALL LAN IPv6 features.  DHCPv6? No. Router Announcement? No. DNS? No. Reverse proxy? No. Firewall? No. Syslog? No.  So what are ALL of these LAN features it enables?

[mae-3]

@abcdefghij123 

Disable the IPv6 LAN side breaks the IPv6 gateway link between the public internet and LAN and IPv6 addresses will not be routed or shown on the LAN side of the router.

[-rpnz-]

"Enable IPv6 on LAN"  will enable ICMPv6 Router Advertisements (advertising a ::/64 prefix for SLAAC, a default route, as well as the RDNSS option).    There's also a stateless DHCPv6 server that advertises the Sky Hub as a recursive DNS server

Note: neither the Sky Q Hub, nor the Sky Hub 4 has a stateful DHCPv6 server for addressing clients.  The DHCPv6 server is stateless, only announcing the Sky Hub as recursive DNS.  Clients must use SLAAC for addressing.

Thew new Sky Hub 6 (aka. WiFi Max Hub), however, does support a stateful DHCPv6 server

Separately there's an option to enable/disable the IPv6 firewall, but this should always be left on, unless the user really understands the impact of disabling it, exposing their home network to the Internet.

Hope that helps

[jamesn123]

Hi @abcdefghij123 

Can I please remind you of the forum rules 

There is no reason to come onto a community driven forum and act the way you have. If people are not providing the answer you are looking for then just say/explain it in a nice way rather than using sarcasm. Manners cost nothing & people provide their time for free here to help others.