Re: Trying to set up a bridge for KVM - Success (sort of)

Re: Trying to set up a bridge for KVM - Success (sort of)

[Leroy Tennison]

I think I've found a bug... nothing I configured in 
/etc/sysconfig/network worked.  However, a little "post processing" 
solved the problem (I can ping google.com again!  For some reason, even 
with the broken configuration, I could ping 192.168.1.1, just no 
further).  I tested the below, found it to work and finally put it in 
/etc/init.d/after.local to get networking to work on boot (I have no 
idea when openSuSE implemented after.local - why do they have to be 
different?).

ip route del 192.168.1.0/24 dev eth0
ip route del default dev eth0
ip route add default via 192.168.1.1 dev br0 proto static
ip addr del 192.168.1.8/24 dev eth0

Now the ip commands look like

ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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 brd 127.255.255.255 scope host lo
        valid_lft forever preferred_lft forever
     inet6 ::1/128 scope host
        valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast 
master br0 state UP qlen 1000
     link/ether 00:1e:8c:f1:68:94 brd ff:ff:ff:ff:ff:ff
     inet 169.254.9.142/16 brd 169.254.255.255 scope link eth0:avahi
        valid_lft forever preferred_lft forever
     inet6 fe80::21e:8cff:fef1:6894/64 scope link
        valid_lft forever preferred_lft forever
3: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
     link/ether 00:1e:8c:f1:68:94 brd ff:ff:ff:ff:ff:ff
     inet 192.168.1.101/24 brd 192.168.1.255 scope global br0
        valid_lft forever preferred_lft forever
     inet6 fe80::21e:8cff:fef1:6894/64 scope link
        valid_lft forever preferred_lft forever

ip route
default via 192.168.1.1 dev br0  proto static
default dev eth0  scope link  metric 1002
127.0.0.0/8 dev lo  scope link
169.254.0.0/16 dev eth0  proto kernel  scope link  src 169.254.9.142
192.168.1.0/24 dev br0  proto kernel  scope link  src 192.168.1.101

I wouldn't disagree with anyone who says the solution is ugly.  I don't 
know (among a lot of things I don't understand about this issue) why 
eth0 got an RFC 3927 IP address and frankly I don't care.  Anything not 
explicitly listed in the original four ip commands was "done for me" 
(like the 'metric 1002').  Next stop: does KVM actually work with this 
configuration...