Routing through dummy interfaces?

Linux Advanced Routing and Traffic Control

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I have a linux system with 4 ethernet interfaces, eth0 goes to the internet,
eth1, eth2, and eth3 are NAT'd LANs.

I want to use an ingress filter to prioritize bandwidth
(downstream from internet) to various IPs.

I want to sett it up something like this....

eth0 <--[NAT]--> dummy0 <---> dummy1 <---> eth1,eth2,eth3

dummy1 should have an ingress filter on it controling outbound bandwidth
to the internet

dummy0 should have an ingress filter on it controling inbound bandwidth
from the internet

Let's say...
eth0 is 10.53.62.2/30
dummy0 is 192.168.255.1/24
dummy1 is 192.168.255.254/24
eth1 is 192.168.1.1/24
eth2 is 192.168.2.1/24
eth3 is 192.168.3.1/24

How do I set up routing so traffic to/from the internet gets routed
through the dummy interfaces?

If this is not possible, how might i achive a simmilar effect?

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