2 servers, 4 NICs, 1 router/switch

[Pablo Andreone <pabloandreone@gmail.com>]

Hi, I have this configuration:
2 servers each one with two NICs, all of them connected to a the same
router with 5 switched ports.

1st. server:
 eth0 = 10.0.0.24/255.255.255.0
 eth1 = 192.168.0.24/255.255.255.0

2nd. server:
 eth0 = 10.0.0.25/255.255.255.0
 eth1 = 192.168.0.25/255.255.255.0

Router/Switch:
 address: 192.168.0.1

I can ping (another PC) 192.168.0.3, from 1st, and 2nd. and the ping
goes through the interface that starts with 192.... but ...

... when I try to ping from 1st. server to 10.0.0.25 I don't get any
response, and the same happens when I try to ping from 2nd. server to
10.0.0.24

I am pretty sure that I am doing something wrong ... but I'm a newbie
and can't tell what it is.

route command result in 1st. server:
Kernel IP routing table
Destination  Gateway    Genmask         Flags Metric Ref    Use Iface
10.0.0.0        *               255.255.255.0   U     0      0        0 eth0
localnet        *               255.255.255.0   U     0      0        0 eth1
default         192.168.0.1    0.0.0.0         UG    0      0        0 eth1

route command result in 2nd. server:
Kernel IP routing table
Destination   Gateway    Genmask       Flags Metric Ref    Use Iface
10.0.0.0        *               255.255.255.0   U     0      0        0 eth0
192.168.0.0     *               255.255.255.0   U     0      0        0 eth1
default         192.168.0.1    0.0.0.0         UG    0      0        0 eth1

Thanks,