KVM in remote server with bridge in a single ethernet interface

KVM in remote server with bridge in a single ethernet interface

[Armando Montiel]

Hi,

I have only one ethernet port in a remote server. (eth0)

I have a public address with x.x.x.164 netmask 255.255.255.240 gw x.x.x.161

and want to use in my guest OS the next available ip address (x.x.x.165 netmask 255.255.255.240 gw x.x.x.161)

Is this posible with brctl to achieve this?

I did a file called ifcfg-br0 with:


DEVICE=br0
TYPE=Bridge
BOOTPROTO=none
BROADCAST=x.x.x.175
HWADDR=xx:xx:xx:xx:xx:xx
IPADDR=x.x.x.164
NETMASK=255.255.255.240
NETWORK=x.x.x.160
ONBOOT=yes
GATEWAY=x.x.x.161

then replace ifcfg-eth0 with:
DEVICE=eth0
BRIDGE=br0
#BOOTPROTO=none
ONBOOT=yes

then reboot, after that i use:



I was connected to my remote server but problems begin when I assigned the x.x.x.165 ip addres to the guest OS with

virt-manager to begin installation. I lost the remote connection. Maybe I miss something to avoid loosing the connection ?

i'm still receiving ping from x.x.x.165 but x.x.x.164 is not responding.

KVM in remote server with bridge in a single ethernet interface

[Armando Montiel]

Hi,

I have only one ethernet port in a remote server. (eth0)

I have a public address with x.x.x.164 netmask 255.255.255.240 gw x.x.x.161

and want to use in my guest OS the next available ip address (x.x.x.165
netmask 255.255.255.240 gw x.x.x.161)

Is this posible with brctl to achieve this?

I did a file called ifcfg-br0 with:


DEVICE=br0
TYPE=Bridge
BOOTPROTO=none
BROADCAST=x.x.x.175
HWADDR=xx:xx:xx:xx:xx:xx
IPADDR=x.x.x.164
NETMASK=255.255.255.240
NETWORK=x.x.x.160
ONBOOT=yes
GATEWAY=x.x.x.161

then replace ifcfg-eth0 with:
DEVICE=eth0
BRIDGE=br0
#BOOTPROTO=none
ONBOOT=yes

then reboot, after that i use:



I was connected to my remote server but problems begin when I assigned
the x.x.x.165 ip addres to the guest OS with

virt-manager to begin installation. I lost the remote connection. Maybe
I miss something to avoid loosing the connection ?

i'm still receiving ping from x.x.x.165 but x.x.x.164 is not responding.


Here is my config:

Distro: Centos 5.5 x64

Linux v2.noc.com.mx 2.6.18-194.3.1.el5 #1 SMP Thu May 13 13:08:30 EDT
2010 x86_64 x86_64 x86_64 GNU/Linux

kvm-83-164.el5_5.9
kvm-qemu-img-83-164.el5_5.9
kmod-kvm-83-164.el5_5.9
etherboot-zroms-kvm-5.4.4-13.el5.centos

eth0      Link encap:Ethernet  HWaddr xx:xx:xx:xx:xx:xx
          inet addr:x.x.x.164  Bcast:x.x.x.175  Mask:255.255.255.240
          inet6 addr: fe80::225:90ff:fe04:7874/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7140395 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2491842 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9632227753 (8.9 GiB)  TX bytes:226154906 (215.6 MiB)
          Memory:fb5e0000-fb600000

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:109391 errors:0 dropped:0 overruns:0 frame:0
          TX packets:109391 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:46719292 (44.5 MiB)  TX bytes:46719292 (44.5 MiB)

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:357 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:110402 (107.8 KiB)