I read the FAQ.
In my system I have only one NIC through which I am connected to the
internet.
so I did the following:
# ovs-vsctl add-br br0
# ovs-vsctl add-port br0 em1
# ifconfig em1 0.0.0.0
# ifconfig br0 <ip> netmask <mask>
# ip route del default dev em1
# ip route add default dev br0
# dhclient br0
# ovs-vsctl show
667ae087-8a68-47e3-ba17-
406fc2df42bc
Bridge "br0"
Port "br0"
Interface "br0"
type: internal
Port "em1"
Interface "em1"
# ifconfig -a
br0: flags=4419<UP,BROADCAST,
RUNNING,PROMISC,MULTICAST> mtu 1500
inet XX.XX.XX.XX netmask 255.255.240.0 broadcast ++.++.++.++
inet6 fe80::1ec1:deff:fe65:6fee prefixlen 64 scopeid 0x20<link>
ether 1c:c1:de:65:6f:ee txqueuelen 0 (Ethernet)
RX packets 286290 bytes 54385389 (51.8 MiB)
RX errors 0 dropped 284 overruns 0 frame 0
TX packets 20230 bytes 3545570 (3.3 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
em1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::1ec1:deff:fe65:6fee prefixlen 64 scopeid 0x20<link>
ether 1c:c1:de:65:6f:ee txqueuelen 1000 (Ethernet)
RX packets 307970 bytes 58277898 (55.5 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 21322 bytes 3835886 (3.6 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 19 memory 0xf3000000-f3020000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 16436
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 12 bytes 1090 (1.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 12 bytes 1090 (1.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Now I can use the internet again.
How IP addresses are manipulated in Open Vswitch?
If I create virtual machines connected to br0. There IP address will also
be in the same subnet of XX.XX.XX.XX.?
For a different subnet, do I have to create another bridge? Is it required
for every bridge to ported to a physical NIC?
Can I create a DHCP server in Open Vswitch?
Thanks,
On Thu, Jul 19, 2012 at 3:46 PM, Ben Pfaff <[email protected]> wrote:
> On Thu, Jul 19, 2012 at 10:43:06AM +0200, Arindam Choudhury wrote:
> > So in OpenVSwitch, we create a bridge and connect it with the ethernet
> card.
> >
> > So, is it mean that the guests will be in the same subnet of the host?
>
> Not necessarily.
>
> > Is it possible to put guests on a different subnet?
>
> Yes.
>
> > I am very new and trying to understand linux bridging and OpenVSwitch.
> Can
> > you suggest me some reading?
>
> The FAQ: http://openvswitch.org/faq/
>
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