I've a system w/ 5 NICs, 4 of which are to be configured up, with no addresses.
/etc/network/interfaces
auto lo eth0 eth1 eth2 eth3 eth4
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0
iface eth0 inet static
address 10.9.8.228
netmask 255.255.255.192
gateway 10.9.8.254
iface eth1 inet manual
up echo
iface eth2 inet manual
up echo
iface eth3 inet manual
up echo
iface eth4 inet manual
up echo
At boot, when NetworkManager gets a hold of things, no interfaces are properly configured, and eth2 is the "better connection" (syslog attached). Here's ifconfig
I've a system w/ 5 NICs, 4 of which are to be configured up, with no addresses.
/etc/network/ interfaces
auto lo eth0 eth1 eth2 eth3 eth4
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0
iface eth0 inet static
address 10.9.8.228
netmask 255.255.255.192
gateway 10.9.8.254
iface eth1 inet manual
up echo
iface eth2 inet manual
up echo
iface eth3 inet manual
up echo
iface eth4 inet manual
up echo
At boot, when NetworkManager gets a hold of things, no interfaces are properly configured, and eth2 is the "better connection" (syslog attached). Here's ifconfig
eth0 Link encap:Ethernet HWaddr 00:18:8B:7D:3A:97
collisions: 0 txqueuelen:1000
Interrupt: 17
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:87 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:10244 (10.0 KiB) TX bytes:998 (998.0 b)
eth1 Link encap:Ethernet HWaddr 00:15:17:15:AD:00
collisions: 0 txqueuelen:100 e7e80000- e7ea0000
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:0 (0.0 b) TX bytes:492 (492.0 b)
Base address:0xdcc0 Memory:
eth2 Link encap:Ethernet HWaddr 00:15:17:15:AD:01
collisions: 0 txqueuelen:1000 e7ec0000- e7ee0000
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:155 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:9920 (9.6 KiB) TX bytes:316 (316.0 b)
Base address:0xdce0 Memory:
eth3 Link encap:Ethernet HWaddr 00:15:17:15:AD:02
collisions: 0 txqueuelen:1000 e7c80000- e7ca0000
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0xccc0 Memory:
eth4 Link encap:Ethernet HWaddr 00:15:17:15:AD:03
collisions: 0 txqueuelen:1000 e7cc0000- e7ce0000
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0xcce0 Memory:
Getting even more curious, after doing 'sudo /etc/init. d/networking restart' , the network configuration is as I would expect.
This is BROKEN.
Running kubuntu feisty, fully updated as of 20070328.