Tried again today, in Ubuntu 10.04 with all the updates applied, and the
bug is still there.
To Stéphane Graber (stgraber) and Daniel Hahler (blueyed), here are the
outputs of the commands when both eth0 and eth1 are "up" and the
networking doesn't work:
----------------------------------------------
root@pc1:/# ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
UNKNOWN qlen 1000
link/ether 00:18:f3:91:08:9d brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
qlen 1000
link/ether 00:18:f3:91:11:eb brd ff:ff:ff:ff:ff:ff
4: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state
DOWN qlen 1000
link/ether 00:15:af:08:f6:ea brd ff:ff:ff:ff:ff:ff
----------------------------------------------
root@pc1:/# ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
UNKNOWN qlen 1000
link/ether 00:18:f3:91:08:9d brd ff:ff:ff:ff:ff:ff
inet 192.168.1.2/24 brd 192.168.1.255 scope global eth0
inet6 fe80::218:f3ff:fe91:89d/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
qlen 1000
link/ether 00:18:f3:91:11:eb brd ff:ff:ff:ff:ff:ff
inet 192.168.1.3/24 brd 192.168.1.255 scope global eth1
inet6 fe80::218:f3ff:fe91:11eb/64 scope link
valid_lft forever preferred_lft forever
4: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state
DOWN qlen 1000
link/ether 00:15:af:08:f6:ea brd ff:ff:ff:ff:ff:ff
----------------------------------------------
root@pc1:/# ip route show
192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.2
192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.3
169.254.0.0/16 dev eth1 scope link metric 1000
default via 192.168.1.1 dev eth1 metric 100
default via 192.168.1.1 dev eth0 metric 100
----------------------------------------------
root@pc1:/# ip route get 1.2.3.4
1.2.3.4 via 192.168.1.1 dev eth0 src 192.168.1.2
cache mtu 1500 advmss 1460 hoplimit 64
----------------------------------------------
root@pc1:/# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
192.168.1.0 * 255.255.255.0 U 0 0 0 eth1
link-local * 255.255.0.0 U 1000 0 0 eth1
default 192.168.1.1 0.0.0.0 UG 100 0 0 eth1
default 192.168.1.1 0.0.0.0 UG 100 0 0 eth0
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https://bugs.launchpad.net/bugs/788301
Title:
Networking fails with two interfaces on the same network
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