1 ccr with 2 independet gw with diffrent subnet going to the diffrent gw.

Hello
I would like to set up my new ccr with my old routetd net and the new net we get soon.

My old consist of a few /27 and gateway X
We will be getting a new link in with a /24 and we will move the /27 when its up and has been tested.

Iv been trying to get it to work but most of the guide I find are based no NAT and 2 isp.


Setup:
Brideg1 – old nett
Ether1 – gw/linket towards isp

Bridge2
Ehter2 – gw/linknet towards new link from isp

Is it possible to configure these to work?
The bridges will consist of multiple vlans/subnets
I wold like to put all in 1 box while we migrate.