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From "Remi Bergsma (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-8699) Extra acquired public ip is assigned to wrong eth device
Date Fri, 31 Jul 2015 13:32:04 GMT
Remi Bergsma created CLOUDSTACK-8699:
----------------------------------------

             Summary: Extra acquired public ip is assigned to wrong eth device
                 Key: CLOUDSTACK-8699
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8699
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: Virtual Router
    Affects Versions: 4.4.4
         Environment: KVM on CentOS
            Reporter: Remi Bergsma
             Fix For: 4.6.0


When the public network of a zone is untagged, an extra public ip address is bound to the
wrong interface (eth2 instead of eth1).

Example:

root@r-44137-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:01:eb brd ff:ff:ff:ff:ff:ff
    inet 169.254.1.235/16 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 06:46:32:00:00:8d brd ff:ff:ff:ff:ff:ff
    inet xx.22.37.143/25 brd 85.222.237.255 scope global eth1
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 02:00:51:27:00:02 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.1/24 brd 10.0.0.255 scope global eth2
    inet xx.22.37.145/25 brd 85.222.237.255 scope global eth2

Obviously, this does not work.

# MGT server
2015-07-31 13:08:12,330 DEBUG [agent.manager.ClusteredAgentAttache] (API-Job-Executor-98:ctx-cbf1e352
job-799791 ctx-58cb236f) Seq 437-2425751349292433542: Forwarding Seq 437-2425751349292433542:
 { Cmd , MgmtId: 345052433506, via: 437(mccxpod01-hv03.mccxpod01.mccx-shared-2.mccx.mcinfra.net),
Ver: v1, Flags: 100001, [{"com.cloud.agent.api.routing.SetPortForwardingRulesVpcCommand":{"rules":[{"dstIp":"10.0.0.61","dstPortRange":[22,22],"id":54859,"srcIp":"xx.22.37.145","protocol":"tcp","srcPortRange":[22,22],"revoked":false,"alreadyAdded":false,"purpose":"PortForwarding","defaultEgressPolicy":false}],"accessDetails":{"zone.network.type":"Advanced","router.name":"r-44137-VM","router.ip":"169.254.1.235","router.guest.ip":"10.0.0.1"},"wait":0}}]
} to 345052433504

2015-07-31 13:08:12,457 DEBUG [agent.transport.Request] (AgentManager-Handler-58:null) Seq
437-2425751349292433542: Processing:  { Ans: , MgmtId: 345052433506, via: 437, Ver: v1, Flags:
0, [{"com.cloud.agent.api.Answer":{"result":true,"details":"","wait":0}}] }
2015-07-31 13:08:12,457 DEBUG [agent.transport.Request] (API-Job-Executor-98:ctx-cbf1e352
job-799791 ctx-58cb236f) Seq 437-2425751349292433542: Received:  { Ans: , MgmtId: 345052433506,
via: 437, Ver: v1, Flags: 0, { Answer } }


# AGENT
2015-07-31 13:08:12,203 DEBUG [cloud.agent.Agent] (agentRequest-Handler-4:null) Request:Seq
437-2425751349292433541:  { Cmd , MgmtId: 345052433506, via: 437, Ver: v1, Flags: 100001,
[{"com.cloud.agent.api.rout
ing.IpAssocVpcCommand":{"ipAddresses":[{"accountId":625,"publicIp":"xx.22.37.145","sourceNat":false,"add":true,"oneToOneNat":false,"firstIP":false,"broadcastUri":"vlan://untagged","vlanGateway":"xx.22.37.1
29","vlanNetmask":"255.255.255.128","vifMacAddress":"06:46:32:00:00:8d","networkRate":-1,"trafficType":"Public","networkName":"pubbr0","newNic":false}],"accessDetails":{"router.guest.ip":"xx.22.37.143","zone
.network.type":"Advanced","router.ip":"169.254.1.235","router.name":"r-44137-VM"},"wait":0}}]
}

2015-07-31 13:08:12,204 DEBUG [cloud.agent.Agent] (agentRequest-Handler-4:null) Processing
command: com.cloud.agent.api.routing.IpAssocVpcCommand
2015-07-31 13:08:12,206 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-4:null)
Executing: /usr/share/cloudstack-common/scripts/network/domr/router_proxy.sh vpc_ipassoc.sh
169.254.1.235  -A
  -l xx.22.37.145 -c eth2 -g xx.22.37.129 -m 25 -n xx.22.37.128

As you see, the vpc_assoc.sh script is instructed to use the wrong eth interface.

See also:
core/src/com/cloud/agent/resource/virtualnetwork/VirtualRoutingResource.java
api/src/com/cloud/agent/api/to/IpAddressTO.java





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