Check that multiple, non-redundant NICs are not connected to the same network. The following configuration example shows that two activated NICs are connected to the same network. In this case, OS routing tables overlap, so communications may not be performed correctly. To avoid this, connect to a different network.
Confirmation method
Use the "netstat -rn" command to check that the same network address is not set for a different device. In the following execution example, different devices have been set to the same network. Therefore, you need to change the network address of the either of the two.
# netstat -nr Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 192.168.10.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.10.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 |
