Evolution won't work over bridge?!?

[Karl Auer]

I have a strange one hear. Hope someone can help.

In order to have a KVM virtual be accessible from outside, I set up a
bridge interface, br1. I added my eth0 interface and the KVM virtual
interface virbr0-nic into the bridge. I did NOT add my wifi interface
into the bridge.

Because I have a gigabit ethernet switch nearby, I generally work with
my wifi interface disconnected, and I did not add my wifi interface
(wlan0) into the bridge.

Everything works fine except Evolution! Evolution goes offline the
instant I disconnect my wifi interface, and comes back on line as son
as I reconnect the wifi interface.

Any ideas? Here is a stripped down version of ifconfig output, with
IPv6 addressing and the rx/tx stats etc removed:

br1       Link encap:Ethernet  HWaddr 50:7b:9d:9b:8d:07  
          inet addr:192.168.1.119
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0      Link encap:Ethernet  HWaddr 50:7b:9d:9b:8d:07  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1

virbr0-nic Link encap:Ethernet  HWaddr 52:54:00:46:c1:19  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1

wlan0     Link encap:Ethernet  HWaddr a4:34:d9:94:a9:8a  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1

And this is the output from "bridge link":

2: eth0 state UP : <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master
br1 state forwarding priority 32 cost 4 
6: virbr0-nic state DOWN : <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500
master br1 state disabled priority 32 cost 100

The virtual link is down because no virtual is running at the moment.
It makes no difference if a virtual is running, Evolution still goes
offline as soon as wifi is disconnected. But for what it's worth this
is "bridge link" with a virtual running:

2: eth0 state UP : <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master
br1 state forwarding priority 32 cost 4 
6: virbr0-nic state DOWN : <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500
master br1 state disabled priority 32 cost 100 
13: vnet0 state UNKNOWN : <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
master br1 state listening priority 32 cost 100 

And vnet0 appears and is in RUNNING state in ifconfig.

If I delete the bridge definition from /etc/network/interfaces and
restart NetworkManager, Evolution works fine with or without wifi *even
though the configuration is still live* (i.e., I have not removed the
running bridge).

Any clues?

Regards, K.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer
http://twitter.com/kauer389

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