LARTC - Jun 2002 - rule on aliases

i need help,

at my scenario I need that pakets from hosts wich have default gw eth0 to lookup
table 1
and the pakets that come from hosts that have default gw eth0:0 to lookup tha
main table

in my tests the scenario 1 didn''t work and at the scenario 2 everything
works
I reseted to default switches but everything is the same,

anyone have the idea or explanation what could be a problem,

router configuration

eth0 10.0.0.254/24 -- LAN
eth0:0 10.0.0.253/24 -- LAN
eth1  100.100.100.254/24 -- BACKBONE

Table main
ip route add 10.0.0.0/24 via 10.0.0.253 table main
ip route add 100.100.100.0/24 dev eth1 table main
ip route add default via 100.100.100.2 table main

Table 1
ip route add 10.0.0.0/24 via 10.0.0.254 table 1
ip route add 100.100.100.0/24 dev eth1 table 1
ip route add default via 100.100.100.1 table 1

ip rule add dev eth0 table 1

-------------------------------------------------------
Scenario 1

 backbone
==switch=    |    
    |
==router== --- ==switch=                    |
                    |
                   LAN

-------------------------------------------------------
Scenario 2

                 backbone
                ==switch=     |-------------| |    
     |             | | 
 ==router== --- ==switch=                    |
                    |
                   LAN
--------------------------------------------------------

thanks a lot,