Replacing Sky's D-Link router with RT-N66U + modem

[gymno]

VPI 1
VCI 32

I'm pretty sure this should be:

VPI 0
VCI 38

[chickeneyes]

Yeah I had noticed that. It's weird because when I ran the setup wizard I chose 0 and 38.

I've just reset the TD-8817 to factory settings and have run the setup wizard again. Currently I have internet access on its ethernet port > PC, purely after running the wizard for PPPoE/PPPoA > Sky Username/password > VPI 0, VCI 38, PPPoA VC-Mux, and without touching any other settings. Going to try and do the DMZ bit again (plus disable firewall, NAT etc as per the instructions given here) and see how it goes when I hook up the Asus.

[chickeneyes]

Ok, in the NAT menu there is a dropdown for Virtual Circuits, and I can select PVC 0-7. After only completing the setup wizard as per my previous post, it is set to 0 and deactivated. All others seem to be deactivated by default, apart from 6, which has the 'NAT' status as activated. The 'DMZ' submenu only shows when an activated PVC is selected in the dropdown:

PVC 0, NAT deactivated: Imgur: The most awesome images on the Internet
PVC 6, NAT activated, DMZ options displayed: Imgur: The most awesome images on the Internet

Does this mean that if I want to DMZ to 192.168.1.2 as per the instructions given here, there is no way to avoid double NAT?

[chickeneyes]

Right ok well after a PC reboot I do indeed have internet access via ethernet to the Asus, which is connected via its WAN port to the TP-Link. Both wifi networks on the Asus are also giving internet access. Many thanks to everyone who helped get this far. I guess the only query I have left is the 'double NAT' one from my previous post.

[gymno]

Sorry, i don't know about double NAT but did notice your MTU is set to 1480.

This shouldn't cause any problems, however most forum members seem to agree that sky's default of 1500 is probably best.
That is unless you've tested for fragmentation, arrived at 1480 & chosen to stay with that.

[Isitme]

What happens when you set the Virtual circuit to PVC0 on this page - Imgur: The most awesome images on the Internet