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Forum Discussion

ancanada_4516's avatar
ancanada_4516
Historic F5 Account
Jan 10, 2010

i-rule for selective NAT

Hi guys,

 

 

I need to communicate a large number of servers to destinations in a non-routable external network, and I have to configure a very large number of NATs in a several BIG-IP's.

 

 

Is there a NAT command in orther to simplify the NAT table, to execute a destination-based selectve NAT? (just like we do with selective SNAT, but on the destination IP address)

 

 

Thanks!

 

 

AC
application delivery
dev
devops
iRules

1 Reply

  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Jan 10, 2010
    Hi Antonio,

     

     

    You can use the node command (wiki: Click here) to translate the destination IP address and optionally the port.

     

     

    What is the criteria for selecting a new destination host? Is it a one to one translation mapping the destination IP the client makes a request to, to the external IP address? if you have a large number of destinations to translate to, you could potentially define them in a string datagroup in the format 'source_ip destination_ip' and then use the findclass command (wiki: Click here) to check the datagroup for the corresponding translation address.

     

     

    If you want more detailed suggestions, please provide more info on the logic you want to implement.

     

     

    Thanks,

     

    Aaron