Topic: Router with two subnets pass thru to chillispot

I was wondering is it possible to have a router with two subnets access a chillispot server as its main internet gateway and have all the routers subnet's clients authenticate thru the routers main Internet gateway?

Main Gateway (Chilispot rserver)
eth0 192.168.1.1
eth1 192.168.182.0
         /|\
          |
         \|/
Router with two subnets

eth0 192.168.182.5 (assigned via chillispot tthru DHCP)
eth1 192.168.21.1 ( Clients Subnet that should authenticat thru the main Gateway)
eth2 192.168.219.1 ( Clients Subnet that should authenticat thru the main Gateway)
                          /   \
                        /      \
                       /        \
192.168.21.1           192.168.219.1
( internet users to be authenticated )

How can this be achived? Thanks in advance.

Re: Router with two subnets pass thru to chillispot

you can do  Gateway --> client, but you can not have anything between Gateway and client.