Looks like it's not "5 static IP addresses on 5 devices behind DSL modem in Bridge Mode", but 5 addresses behind PPPoE. If so, you need only one PPPoE connection on one of the routers (1), also ...

AT&T 2Wire routers function as both routers and modems. You can disable the router functionality by placing the router in bridge mode. In bridge mode, the 2Wire device functions only as a modem ...

How to Bridge a Wireless Connection With a Linksys Router & a Netgear Router. One of the useful things you can do with two routers is set them up in wireless repeating, or bridging, mode.

Hi all: There seems to be conflicting reports about this device's "bridge mode" and putting it back to router mode. 1. Some argue you can't really put the HH1000 into true "bridge mode". They say ...

Linksys updates Velop mesh network system with new bridge mode, adds parental control features to all App-Enabled routers.