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belias21_8982's avatar
belias21_8982
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Aug 10, 2009

Traffic between VLANs

DISCLAIMER: Total F5 n00b (as in, never configured one from scratch...)

 

 

Here's the deal. Single BigIP LTM device has 3 VLANs (external, web, app).

 

I set up a forwarding VS (net 0.0.0.0/0.0.0.0, all protocols, forwarding IP, all VLANs). Devices on web and app VLAN have F5 as their gateway. Given this configuration, should I not be able to ping across VLANs to other devices? Also, I am unable to ping an F5 self-IP that is on a diffeent VLAN. I am wondering if it is a routing issue. It is my impression that setting up the forwarding VS enables the passage of ICMP traffic.

 

 

Can someone point me in the right direction?

 

 

Thanks in advance!

 

 

Brian
config
design
  • The_Bhattman's avatar
    The_Bhattman
    Icon for Nimbostratus rankNimbostratus
    Aug 10, 2009
    Hi Brian,

     

    At face value you appear to have the correct settings. Click here if you want to view the specific Solution Article from F5 that provides the detail for allowing ICMP.

     

     

    However, what the F5 will not allow is pinging the floating IP and self address of the active unit(in your case you have one F5) from the other side of the VLAN. For example, you can't ping the floating and self addresses on external from Web or App and vice versa.

     

     

    I hope this helps,

     

    CB