Eth0 connectivity depends on eth1 being plugged in?

The problem is that if I pull the plug out on eth1 (PCI) then eth0 (onboard) connectivity stops.
If I pull eth0 then eth1 continues to respond, while eth0 does not.
I have seen this now on two different machines, so it seems to me to be a 'feature' of Arch.
I am a bit unhappy about it as it somewhat defeats the intention with redundancy.
Any take on that?
I am on Arch64
I just follow the beginners guide and install arch with two ethernet cards, one builtin and one PCI.
I edit rc.conf:
eth0 = "dhcp"
eth1 = "eth1 10.10.11.242 broadcast 10.10.11.255 netmask 255.255.254.0"
INTERFACES=(eth0 eth1)
gateway="default gw 10.10.10.1"
ROUTES=(gateway)
eth0 get its IP:
eth0 Link encap:Ethernet HWaddr 00:23:54:40:48:BB
inet addr:10.10.10.69 Bcast:10.10.11.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1258618 errors:0 dropped:0 overruns:0 frame:0
TX packets:846 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:99922868 (95.2 Mb) TX bytes:62041 (60.5 Kb)
Interrupt:29 Base address:0xe000
eth1 Link encap:Ethernet HWaddr 00:50:FC:22:F7:D4
inet addr:10.10.11.242 Bcast:10.10.11.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:426 errors:0 dropped:0 overruns:0 frame:0
TX packets:94 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:44279 (43.2 Kb) TX bytes:11986 (11.7 Kb)
Interrupt:17 Base address:0xc000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:799 errors:0 dropped:0 overruns:0 frame:0
TX packets:799 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:48572 (47.4 Kb) TX bytes:48572 (47.4 Kb)
Last edited by slot (2010-02-15 15:45:03)

jac wrote:I think the title is a typo.
You´re welcome to suggest something better
How do you unplug it? Do you just mean taking the ethernet cord out?
Yes, but the same happens when it boots with one cable plugged only
Did you set up static device naming, or do they get assigned whatever name is available?
No I didn't, but I think they'r fairly stable, and I don't care which one gets the IP's
Unfortunately I don't know too much about networking, but maybe it has to do with the fact that eth1 is static and eth0 is dhcp?
Edit: For testing the last suggestion, can you try switching their configs? See if eth0 is done statically if it will work with the (then, dhcp configured) eth1 unplugged.
Yes - I will.

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Eth0 connectivity depends on eth1 being plugged in?

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