inbound requests for FTP and sFTP

If do have now or have had an active support contract while a more recent LTM version has been released, you could upgrade from 9.2.3 to a supported version. See SOL7727 for details (Click here). You can reactivate your license on license.f5.com to update the service activation date to the last time you had active support. 9.4.8 would be good from a stability perspective. 10.0.1 or 10.1.0 would be good from a feature perspective.

For 9.2.x, you can use bhattman's example or you can create a single string datagroup containing the client destination IP and a corresponding server IP:

 
 class ip_mapping_class { 
    "1.1.1.1 2.2.2.2" 
    "1.1.1.2 2.3.4.5" 
 } 
 

You could then use an iRule to check the client IP against the first field:

 
 when CLIENT_ACCEPTED { 
  
     Check if the destination IP is in the first field of the datagroup 
    set dest [findclass [IP::clientaddr] $::ip_mapping_class " "]  
  
     Check if there was a match 
    if { $dest ne "" } { 
  
        Use the match as the destination IP 
       node $dest 
    } 
 } 
 

Aaron