routing - linux route 2nd internal network

In my network configuration, I have three switches:

1. Internet (xx.xx.140.129/25)


2. Internal SAN (10.1.1.0/24)


3. iLo management (10.1.30.0/24)

I have one Linux server which I use for management that needs to have access to all three networks, however it only has 2 NICs. I've cabled switches #2 and #3 together, so there is a physical path between them, and I've tried ip route add 10.1.1.0/24 eth0, but that did not work. Any ideas on how this could be done?

[root@ilo]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
XX.XX.140.128 0.0.0.0           255.255.255.128 U     0      0        0 eth1
10.1.30.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
10.1.1.0        0.0.0.0         255.255.255.0   U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 eth1
0.0.0.0         XX.XX.140.129   0.0.0.0         UG    0      0        0 eth1