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sandiksk_35282's avatar
sandiksk_35282
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Jan 10, 2017

IP forwading vip setup

How to configure forwading IP vip type where the default gateway of the backend servers is F5.

 

We have an application where the VIP and the pool members are in same vlan. I have setup a satndard VIP and also IP forwading .

 

Unable to get this working correctly.Please assist me.

 

4 Replies

    • Is the clients on the same vlan as well? Have you tried to simply enable automap to see if it's an issue with assymetric routing?
    • Have you made sure that the VIP listens on the external VLAN as well?

    Forwarding vips should be configured to listen to packets destined for the network it's meant to forward to.

     

    Example:

     

    • External network - 10.0.0.0/24
    • Internal network - 192.168.1.0/24

    If you wanted the F5 to route traffic to 192.168.1.0/24 you want to create a forwarding vip with destination 192.168.1.0 and a netmask of 255.255.255.0. It should listen to the external VLAN (or all, but that would short circuit inter VLAN communications, which is not very secure).

     

    /Patrik

     

  • i got the forwading IP setup as source address : 0.0.0.0/0 and destination as 0.0.0.0 service ports : All.

     

    Do I need to change the source address from 0.0.0.0/0

     

    Please let me know.

     

    • Patrik_Jonsson's avatar
      Patrik_Jonsson
      Icon for MVP rankMVP

      This one is sufficient for the F5 to route the packets (although not very secure). If this is your current configuration I would consider trying automap as per my first suggestion.

       

      /Patrik

       

  • Create a standard VIP with automap enabled. That will solve your problem. Make sure that the client vlan is tagged in the VIP.

     

    -Jinshu