Virtual interfaces, some works, some not. Same netmask & subnet [on hold]











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I am using Ubuntu 18.04.



I am trying to setup VPN (ethervpn) virtual IPs.



Basically imagine that there are dozens of dedicated machines all over the world.



Each machine should be running Ubuntu + Docker.



There are many different apps, replications, etc. in total hundreds of instances of different types, and domains.



So each server needs a lot of different virtual IPs so I can manage whole deployment.



I will use SQL databases as an example.



I have created using
ifconfig vpn_vpnclient:1 10.1.1.1 netmask 255.0.0.0 up



X.X.1.1, X.X.2.2, X.X.3.1, X.X.4.1, X.X.5.1, X.X.6.2, X.X.7.3, X.X.8.2



On remote machines those IPs are not always reachable.



I.e. 1.1 is working, but 2.2 not, 3.1 is, 4.1, 5.1, 6.2 not, 7.3 is and 8.2 is not...



All interfaces are created in init.d after vpn_client is started...



I have no idea why some of those IPs would work and some not.



There is no duplication (it is a new infrastructure), whole network is using netmask 255.0.0.0 due to big number of different apps, layers, etc.



Of course host can reach all IP's.
I do not use netmask as seems it cannot create virtual interfaces.



BTW often some are reachable, some are not.



I.e. 3.1 is not reachable after few restarts, but was working.



When I was creating them manually earlier this morning i.e.



5.1, 6.2, 4.1, 1.1, 3.1 worked.



Now 3.1 stopped working :)






ifconfig







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put on hold as unclear what you're asking by Rui F Ribeiro, Scott, Filipe Brandenburger, Thomas, RalfFriedl 2 days ago


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.



















    up vote
    0
    down vote

    favorite












    I am using Ubuntu 18.04.



    I am trying to setup VPN (ethervpn) virtual IPs.



    Basically imagine that there are dozens of dedicated machines all over the world.



    Each machine should be running Ubuntu + Docker.



    There are many different apps, replications, etc. in total hundreds of instances of different types, and domains.



    So each server needs a lot of different virtual IPs so I can manage whole deployment.



    I will use SQL databases as an example.



    I have created using
    ifconfig vpn_vpnclient:1 10.1.1.1 netmask 255.0.0.0 up



    X.X.1.1, X.X.2.2, X.X.3.1, X.X.4.1, X.X.5.1, X.X.6.2, X.X.7.3, X.X.8.2



    On remote machines those IPs are not always reachable.



    I.e. 1.1 is working, but 2.2 not, 3.1 is, 4.1, 5.1, 6.2 not, 7.3 is and 8.2 is not...



    All interfaces are created in init.d after vpn_client is started...



    I have no idea why some of those IPs would work and some not.



    There is no duplication (it is a new infrastructure), whole network is using netmask 255.0.0.0 due to big number of different apps, layers, etc.



    Of course host can reach all IP's.
    I do not use netmask as seems it cannot create virtual interfaces.



    BTW often some are reachable, some are not.



    I.e. 3.1 is not reachable after few restarts, but was working.



    When I was creating them manually earlier this morning i.e.



    5.1, 6.2, 4.1, 1.1, 3.1 worked.



    Now 3.1 stopped working :)






    ifconfig







    share|improve this question









    New contributor




    Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.











    put on hold as unclear what you're asking by Rui F Ribeiro, Scott, Filipe Brandenburger, Thomas, RalfFriedl 2 days ago


    Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am using Ubuntu 18.04.



      I am trying to setup VPN (ethervpn) virtual IPs.



      Basically imagine that there are dozens of dedicated machines all over the world.



      Each machine should be running Ubuntu + Docker.



      There are many different apps, replications, etc. in total hundreds of instances of different types, and domains.



      So each server needs a lot of different virtual IPs so I can manage whole deployment.



      I will use SQL databases as an example.



      I have created using
      ifconfig vpn_vpnclient:1 10.1.1.1 netmask 255.0.0.0 up



      X.X.1.1, X.X.2.2, X.X.3.1, X.X.4.1, X.X.5.1, X.X.6.2, X.X.7.3, X.X.8.2



      On remote machines those IPs are not always reachable.



      I.e. 1.1 is working, but 2.2 not, 3.1 is, 4.1, 5.1, 6.2 not, 7.3 is and 8.2 is not...



      All interfaces are created in init.d after vpn_client is started...



      I have no idea why some of those IPs would work and some not.



      There is no duplication (it is a new infrastructure), whole network is using netmask 255.0.0.0 due to big number of different apps, layers, etc.



      Of course host can reach all IP's.
      I do not use netmask as seems it cannot create virtual interfaces.



      BTW often some are reachable, some are not.



      I.e. 3.1 is not reachable after few restarts, but was working.



      When I was creating them manually earlier this morning i.e.



      5.1, 6.2, 4.1, 1.1, 3.1 worked.



      Now 3.1 stopped working :)






      ifconfig







      share|improve this question









      New contributor




      Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I am using Ubuntu 18.04.



      I am trying to setup VPN (ethervpn) virtual IPs.



      Basically imagine that there are dozens of dedicated machines all over the world.



      Each machine should be running Ubuntu + Docker.



      There are many different apps, replications, etc. in total hundreds of instances of different types, and domains.



      So each server needs a lot of different virtual IPs so I can manage whole deployment.



      I will use SQL databases as an example.



      I have created using
      ifconfig vpn_vpnclient:1 10.1.1.1 netmask 255.0.0.0 up



      X.X.1.1, X.X.2.2, X.X.3.1, X.X.4.1, X.X.5.1, X.X.6.2, X.X.7.3, X.X.8.2



      On remote machines those IPs are not always reachable.



      I.e. 1.1 is working, but 2.2 not, 3.1 is, 4.1, 5.1, 6.2 not, 7.3 is and 8.2 is not...



      All interfaces are created in init.d after vpn_client is started...



      I have no idea why some of those IPs would work and some not.



      There is no duplication (it is a new infrastructure), whole network is using netmask 255.0.0.0 due to big number of different apps, layers, etc.



      Of course host can reach all IP's.
      I do not use netmask as seems it cannot create virtual interfaces.



      BTW often some are reachable, some are not.



      I.e. 3.1 is not reachable after few restarts, but was working.



      When I was creating them manually earlier this morning i.e.



      5.1, 6.2, 4.1, 1.1, 3.1 worked.



      Now 3.1 stopped working :)






      ifconfig




      ifconfig






      share|improve this question









      New contributor




      Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question








      edited Nov 24 at 20:58





















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      Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      asked Nov 24 at 20:19









      Mike

      11




      11




      New contributor




      Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Mike is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.




      put on hold as unclear what you're asking by Rui F Ribeiro, Scott, Filipe Brandenburger, Thomas, RalfFriedl 2 days ago


      Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.






      put on hold as unclear what you're asking by Rui F Ribeiro, Scott, Filipe Brandenburger, Thomas, RalfFriedl 2 days ago


      Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.





























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