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netscan_66615's avatar
netscan_66615
Icon for Nimbostratus rankNimbostratus
Jan 25, 2012

LTM - Ping behavior

Hi all,

 

 

First off, I've been dropped into an account that has a pair of f5s deployed. I have had experience with f5 products before, but it's been years back.

 

 

So, that being said, I have an interesting anomally I wanted to confirm whether it's by design or by misconfiguration.

 

 

I have a virtual server defined we'll call this Z. There are 2 member nodes defined in this virtual server, we'll call the nodes X and Y.

 

 

X is able to ping Y and vice versa. Y is able to ping Z, however X is NOT able to ping Z. The ip address for the virtuals and actual nodes are from the same subnet.

 

 

Any reason why X can't ping Z? I know I've provided very limited info on the config, please ask if additional is needed to reveal the answer.

 

 

Thanks in advanced for any responses.

 

 

- netscan
config
design

1 Reply

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  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Jan 25, 2012
    Hi Netscan,

     

     

    I'd expect both pool members to be able to ping the virtual server if they're all on the same VLAN. If you run a tcpdump filtering on the two hosts which can't ping, what do you see?

     

     

    tcpdump -enni 0.0 -Xs0 host X and host Z

     

     

    Aaron