I have 2 PCs
PC1 (RHEL5): 2 NICs: 172.29.137.111, 172.29.139.111
PC2 (RHEL6): 2 NICs: 172.29.137.109, 172.29.139.109
From PC3: 172.29.139.11, I can ping both NICs of PC1, but I can only ping 172.29.139.109 of PC2. Routing table of PC1 and PC2 is the same.
Is it related to OS or something, please help me. Thanks.