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Ren_Alcala's avatar
Ren_Alcala
Icon for Cirrus rankCirrus
May 09, 2021

My Virtual IP doesn't work?

I have created my node/pool and Virtual Server on my F5 but it doesn't get the web app form my node server to view on the client side by navigating my VS IP as shown on my screenshot below. Did i miss something during configuration?? Also why my node status is in "Unknown" state? Hope someone can help me with the issue :) , THanks

 

 

 

Thanks

Renato

application delivery
BIG-IP
devops
LTM
nodes
Virtual IP
virtual server
  • Mayur_Sutare's avatar
    Mayur_Sutare
    May 10, 2021

    Hi  Node is showing unknown because you haven't configured any node specific health monitor while configuring the node. Now your virtual server is showing available it means the backend pool is available and the pool member is listening as well as reachable on the required web-service port. So with this configuration, you should be good.

     

    Now coming to the issue that web app not accessible from client system, i would recommend you to check the traffic hits on the virtual server as well as pool under statistics. This will clarify that the request is reaching the F5 virtual server and hitting the correct pool members.

     

    If traffic is reaching properly, then check the SNAT (Source Address Translation) settings on the virtual server. If backend web-server don't have F5 as its default gateway, you need to enable SNAT (Source Address Translation) settings on the virtual server and you can set it to Auto-map. Basically this will avoid the asymmetric routing issues.

    Please check these points and confirm if it works!

     

     

  • Mayur_Sutare's avatar
    Mayur_Sutare
    Icon for MVP rankMVP
    May 10, 2021

    Hi  Node is showing unknown because you haven't configured any node specific health monitor while configuring the node. Now your virtual server is showing available it means the backend pool is available and the pool member is listening as well as reachable on the required web-service port. So with this configuration, you should be good.

     

    Now coming to the issue that web app not accessible from client system, i would recommend you to check the traffic hits on the virtual server as well as pool under statistics. This will clarify that the request is reaching the F5 virtual server and hitting the correct pool members.

     

    If traffic is reaching properly, then check the SNAT (Source Address Translation) settings on the virtual server. If backend web-server don't have F5 as its default gateway, you need to enable SNAT (Source Address Translation) settings on the virtual server and you can set it to Auto-map. Basically this will avoid the asymmetric routing issues.

    Please check these points and confirm if it works!

     

     

    • Ren_Alcala's avatar
      Ren_Alcala
      Icon for Cirrus rankCirrus
      May 10, 2021

      Hi  ,

       

      Thanks for the help bro it is now working, your right everything is working fine, i just noticed that i have assigned an incorrect External IP that are not connected into any network. Also i change the SNA into auto-map and it is now working as expected 🙂 .. BTW sir do you have an idea on how to fixed my HA configuration because when i tried to create an HA between my 2 BigIP i have an error show "Not all deviced Synced". Again thank you sir 🙂

       

      Thank you and God Bless,

      Renato