Verizon Fios Router with DD-WRT router

[Pamiro]

So i just signed up for the tunnel and I was wondering if anyone has any info on how to setup the DD-WRT behind a Verizon Fios Actiontec router.

[jtschoneich]

Hi,
What I did:
I had already HE tunnel configured and working on my dd-wrt router, according to instructions found here:
http://www.dd-wrt.com/wiki/index.php/IPv6
After this, I left, temporarily, Vz FIOS router as it came from Vz, unchanged.
I connected my dd-wrt router's WAN port to one of Vz FIOS router's LAN ports.
On dd-wrt router I changed, under setup tab, to static IP, and assigned 192.168.1.xxx IPs (better closer to .254).
I left DHCP option enabled, on Vz FIOS router, but reserved that IP address for my dd-wrt router's MAC.
And under firewall, on Vz router, I put my dd-wrt router's IP into DMZ, so no traffic would be blocked to dd-wrt.
So, pretty unchanged: on Vz router only reserve IP for dd-wrt router (optional, if router is always on), and put it in DMZ for that specific address.
On dd-wrt assign static address, and make sure your HE tunnel is working.
Good-Luck