I'm trying to get 2 ethernet adapters to work. The first one, eth0, works out of the box. The second one, eth1, acts weird. This port uses the LAN9512. This is my /etc/network/interfaces file:auto loiface lo inet loopbackauto eth0iface eth0 inet static        address 10.0.0.195        netmask 255.255.255.0        hwaddress ether 40:D8:55:1D:D0:B1auto eth1iface eth1 inet static        address 10.0.0.196        netmask 255.255.255.0        hwaddress ether 40:D8:55:1D:D0:B2This are the relevant pieces of the bootlog when I boot the hardware with cables plugged in both ethernet adapters:macb f802c000.ethernet (unnamed net_device) (uninitialized): invalid hw address, using randomlibphy: MACB_mii_bus: probedmacb f802c000.ethernet eth0: Cadence MACB rev 0x0001010c at 0xf802c000 irq 35 (42:8a:61:6e:a2:bb)macb f802c000.ethernet eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=f802c000.etherne:01, irq=-1)[...]usbcore: registered new interface driver smsc95xx[...]usb 1-1: New USB device found, idVendor=0424, idProduct=9512usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0hub 1-1:1.0: USB hub foundhub 1-1:1.0: 3 ports detectedusb 1-1.1: new high-speed USB device number 3 using atmel-ehciusb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3usb 1-1.1: Product: LAN9512usb 1-1.1: Manufacturer: SMSCusb 1-1.1: SerialNumber: 00951370smsc95xx v1.0.4smsc95xx 1-1.1:1.0 eth1: register 'smsc95xx' at usb-700000.ehci-1.1, smsc95xx USB 2.0 Ethernet, 00:80:0f:95:13:70[...]IPv6: ADDRCONF(NETDEV_UP): eth0: link is not readysmsc95xx 1-1.1:1.0 eth1: hardware isn't capable of remote wakeupIPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready[...]macb f802c000.ethernet eth0: link up (100/Full)IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes readyStarting sshd: IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes readysmsc95xx 1-1.1:1.0 eth1: link up, 100Mbps, full-duplex, lpa 0x45E1ifconfig returns expected output:eth0      Link encap:Ethernet  HWaddr 40:D8:55:1D:D0:B1            inet addr:10.0.0.195  Bcast:0.0.0.0  Mask:255.255.255.0          inet6 addr: fe80::42d8:55ff:fe1d:d0b1/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:1795 errors:0 dropped:2 overruns:0 frame:0          TX packets:1671 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:108141 (105.6 KiB)  TX bytes:115881 (113.1 KiB)          Interrupt:35 Base address:0xc000 eth1      Link encap:Ethernet  HWaddr 40:D8:55:1D:D0:B2            inet addr:10.0.0.196  Bcast:0.0.0.0  Mask:255.255.255.0          inet6 addr: fe80::42d8:55ff:fe1d:d0b2/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:1352 errors:0 dropped:2 overruns:0 frame:0          TX packets:9 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:70740 (69.0 KiB)  TX bytes:762 (762.0 B)Now my problem. Pinging from a different host to both IPs works fine. But when I've only plugged a cable in to eth0 I still can ping both IPs. Whereas I expected to be able to ping only 10.0.0.195. When I've only plugged in a cable in eth1 I can't ping none of both IPs, now I expected to be able to ping 10.0.0.196.What is going on? And how can I fix this?EDITAs asked:$ netstat -rnKernel IP routing tableDestination     Gateway         Genmask         Flags   MSS Window  irtt Iface10.0.0.0        0.0.0.0         255.255.255.0   U         0 0          0 eth010.0.0.0        0.0.0.0         255.255.255.0   U         0 0          0 eth1
2 IPs on 1 ethernet adapter
ethernet