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Old 01-12-2012, 11:15 AM   #1
Registered: Aug 2005
Location: Manchester, England
Distribution: Ubuntu 17.04
Posts: 319

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Configuring a default network brige when installing KVM killed networking

I've just installed SLES 11 SP1 on a test server and installed KVM through YaST. About half way through it prompted me to configure a default network bridge, I clicked yes and lost my VNC connection. I now can't ping either of the 2 interfaces. If bridging renders an interface unusable for normal use how can I tell it to only use one specific adapter?
Old 01-12-2012, 03:08 PM   #2
LQ Newbie
Registered: Jun 2011
Distribution: Redhat
Posts: 28

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you can configure the networing manuly or if you want you can remove on of the 2 bridge you created
Old 01-12-2012, 04:33 PM   #3
Registered: Jan 2012
Location: Czech
Distribution: Fedora, RHEL, Ubuntu, Mint
Posts: 110

Rep: Reputation: 14
When an interface is connected in a bridge, no IP is on the interface (you can set an IP in config, but it does nothing).

Virtual machines use bridge very often. The interfaces are in a bridge in host and you can put them IPs in guests.

However, there is a question about IP on the host. You can put an IP on the bridge.

If you really want to delete bride user brtctl command:
brctl delif br0 eth0
brctl delif br0 wlan0
brctl delif br0 vif0
... remove interfaces from the bride br0

brctl delbr br0
... delete the bridge br0

see 'man brctl'

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