Forum Discussion

Patrik_146826's avatar
Patrik_146826
Icon for Nimbostratus rankNimbostratus
Nov 17, 2015

Redirect incoming URL to correct port depending on node monitor port

Hi, I'm fairly new with F5 and have a question about iRule or some other way to handle this. The "problem" is as follows: My development team have two servers running the same front end web-applicati...
application delivery
BIG-IP
iRules
nathe's avatar
nathe
Icon for Cirrocumulus rankCirrocumulus
Nov 18, 2015

Patrik, perhaps an irule is required then to force the host header to include the port. From the DC wiki on LB::select try this, where ServerA ip address is x.x.x.x and ServerB ip is x.x.x.y

when HTTP_REQUEST {

  log local0. "lbserveraddr: [LB::server addr]"

   check if serverside connection had previously been established

  if { [LB::server addr] eq "" }{

     if no serverside connection had previously been established, force one

     so the iRule has the info required to insert a destination-specific header

    eval [LB::select]

  }

  switch [LB::server addr] {

    "x.x.x.x" { HTTP::header replace Host "[HTTP::host]:8081" }

    "x.x.x.y" { HTTP::header replace Host "[HTTP::host]:8082" }

  }
}