ip route src not working

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http://stackoverflow.com – 1I need to use several IPs on interface in Linux, and switch it, but it's not working. for example: # ifconfig eth0 Link encap:Ethernet HWaddr 90:2b:34:33:80:65 inet addr: Bcast: Mask: inet6 addr: fe80::922b:34ff:fe33:8065/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:13220652 errors:0 dropped:32864 overruns:0 frame:0 TX packets:8296620 errors:0 dropped:0 overruns:0 carrier:1 collisions:0 txqueuelen:1000 RX bytes:16166162509 (16.1 GB) TX bytes:21 (HowTos)