Hi all,
I install qemu from git repository with KVM, and connect network with
bridge. The connection to the vm sometimes cannot establish.
The network configure of host OS is here:
root@Blade1-02:~/qemu.git# ifconfig
br0 Link encap:Ethernet HWaddr 00:26:b9:fa:de:48
inet addr:10.0.0.2 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: 2001:da8:201:1146:226:b9ff:fefa:de48/64 Scope:Global
inet6 addr: fe80::226:b9ff:fefa:de48/64 Scope:Link
inet6 addr: 2001:da8:201:1146:c52c:1d:240a:97ed/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:58924 errors:0 dropped:0 overruns:0 frame:0
TX packets:18735 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4754344 (4.7 MB) TX bytes:9676157 (9.6 MB)
eth0 Link encap:Ethernet HWaddr 00:26:b9:fa:de:48
inet6 addr: fe80::226:b9ff:fefa:de48/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:228497 errors:0 dropped:110 overruns:0 frame:0
TX packets:62679 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:164064870 (164.0 MB) TX bytes:13773337 (13.7 MB)
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:20779 errors:0 dropped:0 overruns:0 frame:0
TX packets:20779 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8895827 (8.8 MB) TX bytes:8895827 (8.8 MB)
tap0 Link encap:Ethernet HWaddr 16:ac:8f:69:84:7a
inet6 addr: fe80::14ac:8fff:fe69:847a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:147 errors:0 dropped:0 overruns:0 frame:0
TX packets:5283 errors:0 dropped:455 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:17251 (17.2 KB) TX bytes:418040 (418.0 KB)
I write a script to start VM, the script is here(kvm.bridge):
#! /bin/bash
USERID=`whoami`
MACADDR="00:26:b9:fa:ff:31"
model=e1000e
iface=`sudo tunctl -b -u $USERID`
qemu-system-x86_64 -net nic,vlan=0,macaddr=$MACADDR -net
tap,vlan=0,ifname=$iface $@
sudo tunctl -d $iface
So I start VM with:
root@Blade1-02:~# ./kvm.bridge -vnc :1 -hda vm1.img -m 1024
TUNSETIFF: Device or resource busy
qemu-system-x86_64: pci_add_option_rom: failed to find romfile
"efi-e1000.rom"
When I connect to the VM with command:
[root@maple ~]# ssh 10.0.0.131
ssh_exchange_identification: Connection closed by remote host
It can success when I try about 4 times to connect. Is there anything wrong
when I configure the network?
Thanks,
Arthur
--
Arthur Chunqi Li
Department of Computer Science
School of EECS
Peking University
Beijing, China
