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  1. OpenShift Bugs
  2. OCPBUGS-3394

Dual stack SNO fails because of networking

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      Description of problem:

      agent-based SNO installation for dual stack it fails to be deployed.
      
      
      ``` ovnkube-node logs
      I1108 15:22:23.912954   43263 kube.go:97] Setting annotations map[k8s.ovn.org/host-addresses:["10.10.10.225","11.11.11.225","2600:52:52:52:dcad:beff:feff:1190","fd69::2"]] on node node-zero
      I1108 15:22:23.917054   43263 gateway_shared_intf.go:1641] Setting OVN Masquerade route with source: 10.10.10.225
      F1108 15:22:23.917157   43263 ovnkube.go:133] error waiting for node readiness: failed to set the node masquerade route to OVN: could not find node IPv6 address to configure OVN masquerade route, addresses: [{Type:InternalIP Address:10.10.10.225} {Type:Hostname Address:node-zero}]
      ````
      
      
      ```
      [root@infra workdir]# ssh -i id_rsa core@10.10.10.225 ip -6 route
      ::1 dev lo proto kernel metric 256 pref medium
      2600:52:52:52::/64 dev br-ex proto ra metric 48 pref medium
      fd02:0:0:1::/64 dev ovn-k8s-mp0 proto kernel metric 256 pref medium
      fd02::/48 via fd02:0:0:1::1 dev ovn-k8s-mp0 metric 1024 pref medium
      fd69::3 via fd02:0:0:1::1 dev ovn-k8s-mp0 metric 1024 pref medium
      fd69::/125 dev br-ex proto kernel metric 256 pref medium
      fe80::/64 dev br-ex proto kernel metric 1024 pref medium
      default proto ra metric 48 pref medium
              nexthop via fe80::a8aa:aaff:feaa:aa20 dev br-ex weight 1 
              nexthop via fe80::a8aa:aaff:feaa:aa10 dev br-ex weight 1 
      [root@infra workdir]# ssh -i id_rsa core@10.10.10.225 ip --br a s br-ex
      br-ex            UNKNOWN        10.10.10.225/24 169.254.169.2/29 fd69::2/125 2600:52:52:52:dcad:beff:feff:1190/64 fe80::dcad:beff:feff:1190/64 
      ```
      
      node does not have ipv6 address:
      

      status:
      addresses:

      • address: 10.10.10.225
        type: InternalIP
      • address: node-zero
        type: Hostname
        allocatable:
        
        
        

        Version-Release number of selected component (if applicable):

         

        How reproducible:

         

        Steps to Reproduce:

        1.
        2.
        3.
        

        Actual results:

         

        Expected results:

         

        Additional info:

        SLAAC with double routers

        1. jrnl.tar.gz
          5.39 MB
        2. ovnkube-node.logs
          23 kB
        3. oc-get-node-oyaml.yaml
          6 kB
        4. install-config.yaml
          0.6 kB
        5. agent-config.yaml
          2 kB

              bnemec@redhat.com Benjamin Nemec
              kkarampo@redhat.com Konstantinos Karampogias
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              Anurag Saxena Anurag Saxena
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                Created:
                Updated:
                Resolved: