Problem with WAN - right setup with FritzBox router

[votan]

Hello,

I would like to use OPNsense after a FritzBox 7560 as modem.
Unfortunately, seems like Fritzbox (Fritz!OS 7.01) has no Bridge mode where it runs as a modem only.
I think this is the reason why I have not yet managed to setup the WAN.

Question:
- What is the best setup here? Should I run FRitzBox and OPNsense as a "cascade of routers", or does anyone have an idea how to force it into Bridge mode? Technical support of my ISP mentioned to "reset" the Fritzbox and try then, but I could not get this up.

- Very likely I also have an open item with the Firewall rules - if I want to try if the internet connection works, I need at least a filter that allows for internet traffic to my LAN. I tried with a filter opening port 80/443 on the LAN, but I am not sure if that does the trick. As I am new to this: Which rule would I need to test if LAN->WAN->FritzBox->Internet works?

- Which setup for WAN is right? I tried FRitzbox with a static IP (192.168.0.1) and WAN with DHCP. Does this work, or do I need to assign Fritzbox and WAN the same address/mask? Thx for any guidance.

Highly appreciate your time,

Yours
Votan

[newsense]

Cascading is an option as long as you can actually manage the Fritz since you'll need the port forwarding done on each router - so it might get hairy fast.

Bridging would be the easier option - if that can be acomplished.

[marcelmah]

There is no official way of bridging a Fritzbox, there is a way but I would not recommend it, you need to export your config to a site, which changes some checksum etc. etc. (http://www.mengelke.de/Projekte/FritzBoxJSTool)

It does support 'exposed host' (DMZ), it should work fine in 99% of the cases.

[schnipp]

You can use the Fritzbox in routing mode with additional PPPoE forwarding/passthrough (example with Fritzbox 7412 shown here).