Re: Can't get Virtual Network Setup in KVM

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On Mon, 03 May 2010 18:57:23 -0400
Jim wrote:

> Whereis Virt Manager ?
> I look for it but could not find.

I's /usr/bin/virt-manager on my system, perhaps you don't
have the entire virtualization program group installed?

Also, the name virbr0 may be out of date. I just looked
on my system, (where I currently have 2 virtual machines
running on the bridge interface), and I see this from
ifconfig:

br0       Link encap:Ethernet  HWaddr 00:1B:21:3A:00:F3  
          inet addr:192.168.1.106  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::21b:21ff:fe3a:f3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10350246 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8895237 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:7419469965 (6.9 GiB)  TX bytes:1851025477 (1.7 GiB)

eth0      Link encap:Ethernet  HWaddr 00:1B:21:3A:00:F3  
          inet6 addr: fe80::21b:21ff:fe3a:f3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10365591 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8930748 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:7587557604 (7.0 GiB)  TX bytes:1853458690 (1.7 GiB)
          Memory:febe0000-fec00000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:310941 errors:0 dropped:0 overruns:0 frame:0
          TX packets:310941 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:50996677 (48.6 MiB)  TX bytes:50996677 (48.6 MiB)

vnet0     Link encap:Ethernet  HWaddr 1A:7E:39:6E:3E:37  
          inet6 addr: fe80::187e:39ff:fe6e:3e37/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4503 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13775 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:314051 (306.6 KiB)  TX bytes:11986953 (11.4 MiB)

vnet1     Link encap:Ethernet  HWaddr CA:21:C0:18:AC:82  
          inet6 addr: fe80::c821:c0ff:fe18:ac82/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4410 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11904 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:310520 (303.2 KiB)  TX bytes:11861044 (11.3 MiB)

The br0 interface is my bridge setup by this ifcfg-br0 file:

# Networking Interface
DEVICE=br0
TYPE=Bridge
BOOTPROTO=static
GATEWAY=192.168.1.1
IPADDR=192.168.1.106
IPV6INIT=no
NETMASK=255.255.255.0
ONBOOT=yes
PEERDNS=no
USERCTL=no
NM_CONTROLLED=no

The eth0 interface is attached to the bridge:

# Please read /usr/share/doc/initscripts-*/sysconfig.txt
# for the documentation of these parameters.
DEVICE=eth0
#BOOTPROTO=none
#GATEWAY=192.168.1.1
HWADDR=00:1b:21:3a:00:f3
#IPADDR=192.168.1.106
#NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet
IPV6INIT=no
USERCTL=no
BRIDGE=br0
NM_CONTROLLED=no
PEERDNS=no

And the vnet0 and vnet1 interfaces were created by
libvirtd to run my virtual machines on the bridge.
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