Config of Cisco 800 adsl Router and pfsense machine

[stevegingercat]

Hi

I'm a bit confused with how I should set up the pfsense machine to talk to this cisco router
there is also more complexity  in that the router is currently connected to a pix firewall -

Some background
The pfsense box has 2 ethernet interfaces - I know they both work as I have useed this device in the past to do various experiments

The cisco has an adsl interface and connects via ethernet to the pix box (this is our company's current internet connection that works ok - only the pix is getting rather old!)

From what I can gleen from the cisco config files things are set up in the following way

Anyway Via my cisco config I can see
ATM0
dialer is aal5myx ppp dialer
…...............

Encapsulation is ppp
ppp chap hostname  my.hostname.net
ppp chap password ********

---

What should I be using on the pfsense side of things to get pfsense to effectively put the cisco into bridge mode?

Should I be using ppp or ppoe to get the pfsens box to talk to the cisco
Is the cisco 800 and pfsense compatible or should I find a basic adsl modem that I can put into bridge mode and replace the cisco router?

Thanks for your help

Steve