svenvogel edited a comment on issue #3179: Redundant VRouter guest network on 
wrong interface
URL: https://github.com/apache/cloudstack/issues/3179#issuecomment-554639329
 
 
   @ustcweizhou @weizhouapache  thanks for the test. We encounter the problem 
in 2016 that VPC was working from outside but if we use a NAT with Public IP it 
was not working. Thats because Public Adress was not set on correct interface 
(dev id). this was the fixed from @fmaximus for the non-redundant router.
   
   two questions:
   
   You are sure thats working in your test environment with ovs? (NAT, Firewall 
...) if its so then we need to test it without #2304
   
   did you remove #2304 in your ovs test setup and used the change from #3179?
   
   can you explain how this commit help 6fc389a in our actually problem?
   
   did you test both redundant and non-redundant router?
   
   >>However, I insist that we should send IpAssocVpcCommand instead of 
IpAssocCommand , even it might lead to some issues.
   
   like @DennisKonrad wrote above. if we use "IpAssocVpcCommand" we get the 
issues with the VPC redundant router. they are start up and reboot immediately. 
that why he ask  "Do you think it would be possible to write a mac address map 
based function for both (ovs and linux bridge)?" thats why we ask can you fix 
this problem? 
   
   ```json
   `{"ip_address":[
   
{"public_ip":"172.20.20.12","source_nat":true,"add":true,"one_to_one_nat":false,"first_i_p":true,"gateway":"172.20.0.1","netmask":"255.255.0.0","vif_mac_address":"1e:00:d5:00:00:c2","new_nic":false,"nw_type":"Public"}],"type":"ips"}```

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