Forum Discussion

Michael_Mangret's avatar
Michael_Mangret
Icon for Nimbostratus rankNimbostratus
Apr 17, 2007

Is it possible in 4.x...

to search the incomming request for a paticular string, then either discard or loadbalance to a paticular pool. I am unable to find any reference material on rule syntax for 4.5.x. If anyone knows where I might find a document that has a syntax list for rules in 4.5, that would be great as well.

 

 

Thanks,

 

 

MM
application delivery
dev
devops
iRules
v4
  • Joe_Pruitt's avatar
    Joe_Pruitt
    Apr 19, 2007
    The documentation for v4.x iRules are in the product user manuals available on ask.f5.com. These code samples are from the following link

     

     

    https://tech.f5.com/home/bigip/manuals/bigip4_6_2/bigip4_6_2ref/BIGip_rules.html1208927

     

    Click here

     

     

     

    rule my_rule { 
  if (tcp_content contains "XYZ") {
   use pool xyz_servers
  }
  else if (substr(tcp_content(100), 50, 3)) == "ABC" {
    use pool abc_servers
  }
  else {
    use pool web_servers
  }
}

     

     

    rule my_rule { 
  if (http_content contains "ABC") { 
    use pool http_pool 
  } 
  else if (http_content_collected < 20) { 
    accumulate 
  } 
  else { 
    discard 
  } 
}

     

     

    There are a couple of other examples in there but this should get you started.

     

     

    -Joe