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Drew666's avatar
Drew666
Icon for Nimbostratus rankNimbostratus
Sep 27, 2019

iRule Creation Query

Hi, Have created a very simple iRule to extract the incoming Client destination TCP ports using the switch cmd to redirect to specific nodes:   when HTTP_REQUEST  {     switch { TCP::local_port...
application delivery
iRules
  • Enes_Afsin_Al's avatar
    Enes_Afsin_Al
    Sep 27, 2019

    Hi Drew,

    Can you try this iRule?

    when HTTP_REQUEST {
    set port [TCP::client_port]
    # log local0. "Port: $port"
    
    if { ($port > 8000) and ($port < 8151) } {
    	set newlastoctet [expr $port - 7900]
    	# log local0. "NewLastOctet: $newlastoctet"
    	node "10.100.10.$newlastoctet:6660"
    }
}
Drew666's avatar
Drew666
Icon for Nimbostratus rankNimbostratus
Sep 27, 2019

Hi Eaa,

 

That's looking spot on! (I'll test it next week).

 

(I obviously was going down the wrong path with the "for" loop logic)

 

So I gather [TCP::client_port] extracts destination port? Why I ask is that I could determined if it referred to either the source or destination TCP port?

 

Thank you

Regards

Drew