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https://issues.apache.org/jira/browse/CLOUDSTACK-10127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16294357#comment-16294357
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ASF GitHub Bot commented on CLOUDSTACK-10127:
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blueorangutan commented on issue #2304: CLOUDSTACK-10127: KVM + Ovs: Incorrect
devId on static nat
URL: https://github.com/apache/cloudstack/pull/2304#issuecomment-352288013
@rhtyd a Jenkins job has been kicked to build packages. I'll keep you posted
as I make progress.
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> 4.9 / 4.10 KVM + openvswitch + vpc + static nat / secondary ip on eth2?
> ------------------------------------------------------------------------
>
> Key: CLOUDSTACK-10127
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-10127
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: VPC
> Affects Versions: 4.7.0, 4.8.0, 4.9.0, 4.10.0.0
> Environment: CentOS 7.4.1708 + KVM + OpenvSwitch 2.3-2.8
> Reporter: Sven Vogel
> Assignee: Frank Maximus
> Priority: Critical
>
> We have the following Problem.
> 1. KVM
> 2. Bridges
> bond with two interfaces and trunk (0,129,180,100-1500) to cloudbr0
> Cloudbr0 (0 - guest network)
> Fakebridge pub129 (public network)
> Fakebridge sto180 (secondary storage network)
> Fakebridge mgmt0 (management)
> If I have a vpc all things work until I add a secondary ip and add a
> static nat.
> The following will happen, first address will be on the the correct
> interface 146.0.122.134/26 but static nat will be on the false network.
> Its on the eth2…
> {{ root@r-29-VM:~# ip a
> 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 scope host lo
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP qlen 1000
> link/ether 0e:00:a9:fe:03:81 brd ff:ff:ff:ff:ff:ff
> inet 169.254.3.129/16 brd 169.254.255.255 scope global eth0
> 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP qlen 1000
> link/ether 1e:00:2c:00:00:68 brd ff:ff:ff:ff:ff:ff
> inet 146.0.122.134/26 brd 146.0.122.191 scope global eth1
> 4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP qlen 1000
> link/ether 02:00:57:07:00:0c brd ff:ff:ff:ff:ff:ff
> inet 192.168.1.254/24 brd 192.168.1.255 scope global eth2
> inet 146.0.122.135/26 brd 146.0.122.191 scope global eth2}}
> Normally I think the secondary ip should be on signed to eth1 not eth2!
> It sets my ip on the guest network vlan range on my cloudbr0 but it should be
> pub129. vnet6 has 1353 guest tag and not the public tag.
> [root@kvm01 ~]# ovs-vsctl list-br
> cloud0
> cloudbr0
> mgmt0
> pub129
> sto180
> [root@kvm01 ~]# virsh domiflist r-29-VM
> Interface Type Source Model MAC
> -------------------------------------------------------
> vnet4 bridge cloud0 virtio 0e:00:a9:fe:03:81
> vnet5 bridge pub129 virtio 1e:00:2c:00:00:68
> vnet6 bridge cloudbr0 virtio 02:00:57:07:00:0c
> Bridge "cloud0"
> Port "vnet4"
> Interface "vnet4"
> Port "vnet5"
> tag: 129
> Interface "vnet5"
> Port "vnet6"
> tag: 1353
> Interface "vnet6"
> root@r-29-VM:~# cat /etc/cloudstack/ips.json {
> "eth0": [
> {
> "add": true,
> "broadcast": "169.254.255.255",
> "cidr": "169.254.3.129/16",
> "device": "eth0",
> "gateway": "None",
> "netmask": "255.255.0.0",
> "network": "169.254.0.0/16",
> "nic_dev_id": "0",
> "nw_type": "control",
> "one_to_one_nat": false,
> "public_ip": "169.254.3.129",
> "size": "16",
> "source_nat": false
> }
> ],
> "eth1": [
> {
> "add": true,
> "broadcast": "146.0.122.191",
> "cidr": "146.0.122.134/26",
> "device": "eth1",
> "first_i_p": true,
> "gateway": "146.0.122.130",
> "netmask": "255.255.255.192",
> "network": "146.0.122.128/26",
> "new_nic": false,
> "nic_dev_id": 1,
> "nw_type": "public",
> "one_to_one_nat": false,
> "public_ip": "146.0.122.134",
> "size": "26",
> "source_nat": true,
> "vif_mac_address": "1e:00:2c:00:00:68"
> }
> ],
> "eth2": [
> {
> "add": true,
> "broadcast": "146.0.122.191",
> "cidr": "146.0.122.135/26",
> "device": "eth2",
> "first_i_p": true,
> "gateway": "146.0.122.130",
> "netmask": "255.255.255.192",
> "network": "146.0.122.128/26",
> "new_nic": false,
> "nic_dev_id": 2,
> "nw_type": "public",
> "one_to_one_nat": true,
> "public_ip": "146.0.122.135",
> "size": "26",
> "source_nat": true,
> "vif_mac_address": "1e:00:2c:00:00:68"
> },
> {
> "add": false,
> "broadcast": "146.0.122.191",
> "cidr": "146.0.122.136/26",
> "device": "eth2",
> "first_i_p": true,
> "gateway": "146.0.122.130",
> "netmask": "255.255.255.192",
> "network": "146.0.122.128/26",
> "new_nic": false,
> "nic_dev_id": 2,
> "nw_type": "public",
> "one_to_one_nat": true,
> "public_ip": "146.0.122.136",
> "size": "26",
> "source_nat": true,
> "vif_mac_address": "1e:00:2c:00:00:68"
> },
> {
> "add": true,
> "broadcast": "192.168.1.255",
> "cidr": "192.168.1.254/24",
> "device": "eth2",
> "gateway": "192.168.1.254",
> "netmask": "255.255.255.0",
> "network": "192.168.1.0/24",
> "nic_dev_id": "2",
> "nw_type": "guest",
> "one_to_one_nat": false,
> "public_ip": "192.168.1.254",
> "size": "24",
> "source_nat": false
> }
> ],
> "id": "ips"
> }
> Frank Maximus from Nuage analysed the problem.
> {quote}
> That seems to be a bug in the lookup of the device number, in case of
> openvswitch.
> The config clearly sets device to eth2, while it should be eth1.
> More specifically:
> in LibvirtComputingResource.prepareNetworkElementCommand()
> The broadcastUriToNicNum map is filled depending on the VR nics.
> In openvswitch the guest bridge is used as is, so it overwrites the mapping
> of public.
> This was not an issue until 4.6 as then VR was using the macaddress to do
> lookup, while now it is using the device number.
> Kind Regards,
> Frank{quote}
> I hope anyone can fix that fastly.
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