IPv6 router behind AT&T U-Verse Motorola NVG510

I've tried for a long time to use IPv6 on a PfSense router behind the modem. The closet tutorial I found was this one on PfSense forum but I could not make it work the way I wanted. So I'll explain here how I managed to finally route my given IPv6 subnet.

AT&T Provide a /60 subnet which could easily be 'cut' into 8 pieces of /64. Only the first /64 is used by the modem for connected users so we'll play with the 7 other pieces of the cake. This should give us enough space for 129 127 208 515 967 000 000 machines.

Let's explain this with a simple table:

First, let's connect the WAN Interface of our router to any port of the modem and activate DHCPv6 client:

I could not make the subnet delegation options work properly so let's simply disable it:

By default every IPv6 compatible machine will have at least two addresses:

• the public one
• the link local one which is used for communications within the LAN.

Now I'm gonna grab the Link Local address of my PFSense WAN Interface

And we gonna tell the modem to send the /64 subnet to this address. To do that, let's open a console on the modem itself. I used that trick to get a CLI access on the modem:
http://earlz.net/view/2012/06/07/0026/rooting-the-nvg510-from-the-webui

After that, I just had to fire a shell by pressing ! and add these ipv6 routes :

ip -6 route add 2602:301:xxxx:xx1::/64 via fe80::215:60ff:fe0e:xxxx dev br1

ip -6 route add 2602:301:xxxx:xx2::/64 via fe80::215:60ff:fe0e:xxxx dev br1

ip -6 route add 2602:301:xxxx:xx3::/64 via fe80::215:60ff:fe0e:xxxx dev br1

That's it ! Of course the routes will be lost at the next reboot. I'm still trying to find a way to make these changes permanent without breaking the modem


Now let's use our available IPv6 subnet on the LAN side of our Router :

I'm assigning the IPv6 manually, taking the first available IP of the first subnet. Due to AT&T IPv6 in IPv4 encapsulation we should decrease the MTU to 1472 and the MSS to 1412.

Now let's setup the DHCP Server and Router advertisement on the LAN side :

Here is the result :

Review : Bigfoot Networks Killer Wireless-N 1102

Few days ago, I've decided to buy a new WLAN controller for my laptop because the embedded one does not support 5GHz Wi-Fi aka 802.11an

After having read a quick review on Anandtech , I decided to replace my Intel Centrino Wireless N 1030 adapter by the wall breaking Bigfoot Networks Killer Wireless-N 1102.

It cost me around 30€

Here is the mini PCI-E module with the two antenna connectors.

Fits perfectly inside my DELL Vostro 3350 next to the Crucial C300 

Driver Installation
I downloaded the driver (40MB) for Windows 7 x64 on the official website and installed it as my Intel WLAN Module was still in place.

When I installed the Killer Wireless-N 1102, it was automaticcaly recognized by Windows and ready to fire :)


Signal Quality
This is before, with Intel Centrino Wireless N 1030

17 access points !

At the same place with the Bigfoot Networks Killer Wireless-N 1102

44 access points !

Good news, I can reach a lot of new networks I never saw before.

Channels 
However, there is a weird thing, my home network use the channel 13 and I can't see it on the graph... This is probably due to the regional Wi-Fi  channel configuration (11 channels for USA, 13 for the rest of the world)...

I tried to find this parameters in the Windows settings but I was unsuccessful. Anyway, after few seconds, my laptop connects to my home network on the 13rd channel... I need to go deeper

Still writing this article