Zen FTTC connection with Cisco 887VA router

I am interested in replacing my DrayTek Vigor router on my Zen FTTC connection with a Cisco 887VA router as the DrayTek has not been working reliably. I have no real experience with Cisco IOS and wondered if someone had a config that they could share for this router?

The additional "issue" is that I am looking for a non-nat configuration. The router needs to connect to the FTTC service (VLAN 101) and listen on one of my 5 useable external Zen ip addresses and simply pass all traffic to my firewall which is on another Zen external address. I don't want the router to provide any LAN services or DHCP or anything like that.

Anyone who has any experience in this configuration would be great.

If you have another firewall, why go to all the complexity and expense of a device like the Cisco? I use a HG612 Openreach modem with my firewall. If you don't have an Openreach modem, revision 3B HG612 are available fairly cheaply on eBay.

You can either use the HG612 as a bridge and run PPPoE on your firewall, or you can install the hacked firmware and configure the HG612 as a router. Personally I'd run PPPoE from your firewall, which is what I do in my setup.