Thanx for your reply!
I've now been tearing my hair for a couple of hours trying to get
trunking to work :-)
I'm still not able to make both my host and vlan-guest to have external
network access.
I've done this:
# Create a bridge and add the physical port/interface
ovs-vsctl add-br br0
ovs-vsctl add-port br0 eth0
# Create a fake-bridge for VLAN 10
ovs-vsctl add-br vlan10 br0 10
# Add interface (vnet2) for VM to run on VLAN 10
ovs-vsctl add-port vlan10 vnet2
# ovs-vsctl show
412279fe-57da-42c5-a2d3-ead66689f6cb
Bridge "br0"
Port "br0"
Interface "br0"
type: internal
Port "vlan10"
tag: 10
Interface "vlan10"
type: internal
Port "vnet2"
tag: 10
Interface "vnet2"
Port "eth0"
Interface "eth0"
If I add tag=10 to eth0 I'm able to get external access from within my VM,
but then my host can't get out.
I've been trying all sort of combinations, for example this one which
to me looks somewhat sane, i.e eth0 should trunk VLAN 0 and 10:
l# ovs-vsctl list port eth0
_uuid : fe14a941-7ed4-449c-a8e2-a4d618e3e770
bond_downdelay : 0
bond_fake_iface : false
bond_mode : []
bond_updelay : 0
external_ids : {}
fake_bridge : false
interfaces : [2dc88583-be15-4065-906c-e920948787b9]
lacp : []
mac : []
name : "eth0"
other_config : {}
qos : []
statistics : {}
status : {}
tag : []
trunks : [0, 10]
vlan_mode : trunk
Without any success however...
Gee, if anyone could shed any light on what I'm doing wrong I would be
most happy.
Cheers, Toby
(Some more info follows:
# ip a ls
2: eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc
pfifo_fast state UP qlen 1000
link/ether d4:be:d9:98:59:7c brd ff:ff:ff:ff:ff:ff
19: vnet2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP qlen 500
link/ether da:72:1a:ed:bf:a7 brd ff:ff:ff:ff:ff:ff
inet6 fe80::d872:1aff:feed:bfa7/64 scope link
valid_lft forever preferred_lft forever
27: br0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UNKNOWN
link/ether d4:be:d9:98:59:7c brd ff:ff:ff:ff:ff:ff
inet 192.168.1.175/24 brd 192.168.1.255 scope global br0
inet 192.168.1.115/24 brd 192.168.1.255 scope global secondary br0
inet6 fe80::c0f:bcff:febd:3741/64 scope link
valid_lft forever preferred_lft forever
28: vlan10: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
link/ether 22:11:ec:bc:d3:85 brd ff:ff:ff:ff:ff:ff
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 100 0 0 br0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 br0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 br0
)
On 08/03/2012 05:32 PM, Gurucharan Shetty wrote:
On Fri, Aug 3, 2012 at 7:10 AM, kruskakli <kruska...@gmail.com
<mailto:kruska...@gmail.com>> wrote:
Hi,
I wanted to play around with VLAN so I created 3 VM's
(running kvm on Ubuntu 12.04 with the openvswitch 1.7.0).
Two of them was in VLAN 10. It worked nice. They could talk to
each other but not to the third VM which was in (the default?) VLAN 0.
However, to make external IP traffic possible I had to add my (only)
pyshical device (eth0) to VLAN 10. Fine, now external access worked
from the two VM's.
But, now I couldn't access the outside from within my host machine.
(I was able to restore it by removing eth0 from VLAN 10 and
attach it to VLAN0 again...)
So, my question is, how I could solve this so that it works for
both my host machine as well as those VLAN-guest VMs?
"man ovs-vswitchd.conf.db" has a lot of details about VLANs.
There is a section on VLANs here:
http://openvswitch.org/faq/
It looks like you need to configure eth0 as a trunk port to carry VLAN
0 and VLAN 10.
Thanks,
Guru
I attach some info below in case that would be helpful.
Cheers, Tobbe
# ovs-vsctl show
412279fe-57da-42c5-a2d3-ead66689f6cb
Bridge "br0"
Port "vnet0"
Interface "vnet0"
Port "vnet2"
tag: 10
Interface "vnet2"
Port "vnet1"
tag: 10
Interface "vnet1"
Port "br0"
Interface "br0"
type: internal
Port "eth0"
tag: 0
Interface "eth0"
# ip a ls
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 <http://127.0.0.1/8> scope host lo
inet 169.254.169.254/32 <http://169.254.169.254/32> scope link lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc
pfifo_fast state UP qlen 1000
link/ether d4:be:d9:98:59:7c brd ff:ff:ff:ff:ff:ff
10: br0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UNKNOWN
link/ether d4:be:d9:98:59:7c brd ff:ff:ff:ff:ff:ff
inet 192.168.1.115/24 <http://192.168.1.115/24> brd
192.168.1.255 scope global br0
inet6 fe80::a444:1ff:fe24:fd46/64 scope link
valid_lft forever preferred_lft forever
16: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
pfifo_fast state UP qlen 500
link/ether 4a:d9:f8:ed:e5:28 brd ff:ff:ff:ff:ff:ff
inet6 fe80::48d9:f8ff:feed:e528/64 scope link
valid_lft forever preferred_lft forever
18: vnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
pfifo_fast state UP qlen 500
link/ether ce:3b:44:0d:db:e3 brd ff:ff:ff:ff:ff:ff
inet6 fe80::cc3b:44ff:fe0d:dbe3/64 scope link
valid_lft forever preferred_lft forever
19: vnet2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
pfifo_fast state UP qlen 500
link/ether da:72:1a:ed:bf:a7 brd ff:ff:ff:ff:ff:ff
inet6 fe80::d872:1aff:feed:bfa7/64 scope link
valid_lft forever preferred_lft forever
Example, on how I started kvm:
kvm -m 2048 -net
nic,vlan=10,model=virtio,macaddr=00:00:00:00:cc:12 -net
tap,vlan=10,ifname=vnet2,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown
-boot c -hda /var/lib/libvirt/images/debian-6.0.5_boot2-c3.img
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