eth0 + eth1 connected simultaneously = no traffic, help
When my laptop is connected to a network via wireless, all is well, as long as the wired connection is not plugged in, and the same is true the other way around, but essentially, 2 connected interfaces = no traffic even though each interface is assigned its own ip address through dhcp.
The example below shows the output of route when first, my wireless (eth1) is connected, then my wired (eth0) is connected too, at which time, traffic comes to a grinding halt until one of the interfaces is stopped and you can see, the default gateway is doubled during the dual connection.
michael@2[~]$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.0.0.0 * 255.0.0.0 U 0 0 0 eth1
default mygateway1.ar7 0.0.0.0 UG 0 0 0 eth1
michael@2[~]$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.0.0.0 * 255.0.0.0 U 0 0 0 eth1
10.0.0.0 * 255.0.0.0 U 0 0 0 eth0
default mygateway1.ar7 0.0.0.0 UG 0 0 0 eth0
default mygateway1.ar7 0.0.0.0 UG 0 0 0 eth1
michael@2[~]$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.0.0.0 * 255.0.0.0 U 0 0 0 eth1
default mygateway1.ar7 0.0.0.0 UG 0 0 0 eth1
michael@2[~]$
The same machine running XP with both interfaces connected has no such problems. I killed XP and went full-time Mepis about 6 weeks back, trouble is, sometimes I need to transfer a large amount of data in the range of a few Gb or more and I used to just plug in a cable and go high-speed, then unplug and continue wirelessly, but now I have to mess around with stopping and restarting network interfaces, which causes other lan users difficulties because my machine disappears from their view as I do so, and is not available again until I restart with a single interface.
Should this be sent to the devs? I can reproduce this on any MEPIS system, not just my own and it extends so far as any dual connection, such as a local wired connection and a dial-up that connects but no traffic till the lan is disconnected.
What can be done to correct this?
Mike P
