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> I recently had to replace a new TP-link router because some wireless devices refused to get a IPv6 address What's the advantage of having an ipv6 home lan? I

> I recently had to replace a new TP-link router because some wireless devices refused to get a IPv6 address What's the advantage of having an ipv6 home lan? I think for a home network the 192.168.0.0 subnet should be more than enough. Or am I missing something?

Filligree 9y ago
Publicly exposed ports. Running nginx on more than one of your machines, for example.
pjc50 9y ago
Maybe someone wants to have non-NATed devices on the LAN and actually use their /48?
Symbiote 9y ago
Each device gets a globally routeable address. You could, for example, configure the firewall to give access to your IoT fridge, camera, baby monitor and toaster's web interfaces, all on port 80. With IPv4 NAT, you'd need to remember a port number for all but one of these services. You can more easily accept an incoming connection, whether that's for gaming, video chat, P2P file sharing, etc. The computer knows its own address. If the ISP is so short of IPv4 addresses that even the router only gets a private address (so, two layers of NAT), then without IPv6 there's no way to set up any type of server. The IPv6 firewall user interface (my router calls it "pinholes") is simpler than the IPv4 port forwarding interface.
lmm 9y ago
You might need to VPN to somewhere that's also using 192.168.0.0. Or you might want to connect multiple computers to outside. E.g. my friends used to play an older game over the internet which worked great as long as each of us could forward the port (we just used each other's outside IP address as the address to connect to) but then as soon as two of us moved into the same house that stopped working, because obviously they couldn't both forward the same port.
sliken 9y ago
Approximately half the internet exists because of the lack of IPv6. A partial list: * Streaming music - because you can't connect to your music collection at home * drop box - because neither you or the person you shared with can direct connect * power/solar monitoring - cloud service because you can't connect to your system * IoT/Dropcams/Nest thermostats - require cloud services... because your phone/tablet/desktop can't connect to your clients automatically * security services, garage door control, smart home - another cloud service because you can't monitor/control directly. * netflix - can't connect to your home plex * skype (after they ditched p2p), google hangouts etc - requires cloud because the clients can't connect to each other * pretty much every chat client - central servers because you can't direct connect.
- SonOfLilit 9y ago
  Sorry, I just can't agree with this. IRC had servers decades before IPv4 address scarcity became a thing. Skype was popular before they had to ditch P2P, and most users aren't aware of the issue. DropBox is first and foremost a backup service, and you always want backup to be off-premise. [..] Cloud services are awesome and we would all use them even if we could accept incoming connections.
  - zAy0LfpBZLC8mAC 9y ago
    > IRC had servers decades before IPv4 address scarcity became a thing. Because it's a group chat, where a server is much more natural than for two parties communicating. Plus, it has DCC, so you can actually efectively use IRC without an IRC server.
  - deleted 9y ago
    [deleted]
  - the8472 9y ago
    In the 90s anyone could host a multiplayer game at home.
- mrkrabo 9y ago
  I have like 80 KB/s of upload. Having an external IP (which I do) does not solve anything for me.
lucaspiller 9y ago
Most ISPs who support IPv6 don't give you a single address, but a whole range (e.g. BT in the UK give you a /56). If you give your internal devices an address in this range it means they are globally routable (obviously you will setup a firewall so the router doesn't allow arbitrary connections from the internet). If you have any devices you want to access externally, it means you can access them directly without worrying about NAT/port forwarding. Of course for most users it's going to make no difference at the moment, but for those who need it, it is useful.
- empath75 9y ago
  If home routers enable that by default it will be a security nightmare.
  - zAy0LfpBZLC8mAC 9y ago
    Why exactly?
  - ac29 9y ago
    Why? IPv6 firewalls exist, and scanning a single IPv6 /64 would take 2^32 times longer than the entirety of IPv4.
fulafel 9y ago
If you want to do inter-network connectivity, it's handy to have real IP connectivity instead of a manually configured port forwarding system. Sometimes it's nice to be able to access stuff running on your home Raspberry Pi from your 4G phone, or your friend's network, for example. You might want to run apps that benefit from robust P2P connectivity, like VoIP or WebRTC apps. You might use a VPN to connect to another network and get addressing conflicts.
p1mrx 9y ago
IPv6 on your home LAN lets you to connect to IPv6 addresses on the Internet. Otherwise, they return ENETUNREACH.

Filligree 9y ago

Publicly exposed ports. Running nginx on more than one of your machines, for example.

pjc50 9y ago

Maybe someone wants to have non-NATed devices on the LAN and actually use their /48?

Symbiote 9y ago

Each device gets a globally routeable address. You could, for example, configure the firewall to give access to your IoT fridge, camera, baby monitor and toaster's web interfaces, all on port 80. With IPv4 NAT, you'd need to remember a port number for all but one of these services. You can more easily accept an incoming connection, whether that's for gaming, video chat, P2P file sharing, etc. The computer knows its own address. If the ISP is so short of IPv4 addresses that even the router only gets a private address (so, two layers of NAT), then without IPv6 there's no way to set up any type of server. The IPv6 firewall user interface (my router calls it "pinholes") is simpler than the IPv4 port forwarding interface.

lmm 9y ago

You might need to VPN to somewhere that's also using 192.168.0.0. Or you might want to connect multiple computers to outside. E.g. my friends used to play an older game over the internet which worked great as long as each of us could forward the port (we just used each other's outside IP address as the address to connect to) but then as soon as two of us moved into the same house that stopped working, because obviously they couldn't both forward the same port.

sliken 9y ago

Approximately half the internet exists because of the lack of IPv6. A partial list: * Streaming music - because you can't connect to your music collection at home * drop box - because neither you or the person you shared with can direct connect * power/solar monitoring - cloud service because you can't connect to your system * IoT/Dropcams/Nest thermostats - require cloud services... because your phone/tablet/desktop can't connect to your clients automatically * security services, garage door control, smart home - another cloud service because you can't monitor/control directly. * netflix - can't connect to your home plex * skype (after they ditched p2p), google hangouts etc - requires cloud because the clients can't connect to each other * pretty much every chat client - central servers because you can't direct connect.

SonOfLilit 9y ago
Sorry, I just can't agree with this. IRC had servers decades before IPv4 address scarcity became a thing. Skype was popular before they had to ditch P2P, and most users aren't aware of the issue. DropBox is first and foremost a backup service, and you always want backup to be off-premise. [..] Cloud services are awesome and we would all use them even if we could accept incoming connections.
- zAy0LfpBZLC8mAC 9y ago
  > IRC had servers decades before IPv4 address scarcity became a thing. Because it's a group chat, where a server is much more natural than for two parties communicating. Plus, it has DCC, so you can actually efectively use IRC without an IRC server.
- deleted 9y ago
  [deleted]
- the8472 9y ago
  In the 90s anyone could host a multiplayer game at home.
mrkrabo 9y ago
I have like 80 KB/s of upload. Having an external IP (which I do) does not solve anything for me.

lucaspiller 9y ago

Most ISPs who support IPv6 don't give you a single address, but a whole range (e.g. BT in the UK give you a /56). If you give your internal devices an address in this range it means they are globally routable (obviously you will setup a firewall so the router doesn't allow arbitrary connections from the internet). If you have any devices you want to access externally, it means you can access them directly without worrying about NAT/port forwarding. Of course for most users it's going to make no difference at the moment, but for those who need it, it is useful.

empath75 9y ago
If home routers enable that by default it will be a security nightmare.
- zAy0LfpBZLC8mAC 9y ago
  Why exactly?
- ac29 9y ago
  Why? IPv6 firewalls exist, and scanning a single IPv6 /64 would take 2^32 times longer than the entirety of IPv4.

fulafel 9y ago

If you want to do inter-network connectivity, it's handy to have real IP connectivity instead of a manually configured port forwarding system. Sometimes it's nice to be able to access stuff running on your home Raspberry Pi from your 4G phone, or your friend's network, for example. You might want to run apps that benefit from robust P2P connectivity, like VoIP or WebRTC apps. You might use a VPN to connect to another network and get addressing conflicts.

p1mrx 9y ago

IPv6 on your home LAN lets you to connect to IPv6 addresses on the Internet. Otherwise, they return ENETUNREACH.