For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Paul_Slosberg_8's avatar
Paul_Slosberg_8
Historic F5 Account
May 17, 2007

A better way

Greetings, Im trying to grab the last octect of the client adress so I can then use that to send the thraffic to the proper pool. I will have 254 pools that I need to send traffic too. Im trying t...
application delivery
dev
devops
iRules
JRahm's avatar
JRahm
Icon for Admin rankAdmin
May 17, 2007
regex is expensive. Try this:


when CLIENT_ACCEPTED {
set port_info [getfield [IP::client_addr] "." 4]
if { [string length $port_info] equals "1" } {
  pool mypool_400$port_info
  } elseif { [string length $port_info] equals "2" } {
      pool mypool_40$port_info
  } elseif { [string length $port_info] equals "3" } {
      pool mypool_4$port_info
  } else { pool myDefault }
}

Untested, but passes syntax checker