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sandy16's avatar
sandy16
Icon for Altostratus rankAltostratus
Apr 25, 2016

Irule help for a VS without default pool assigned.

Hi experts, need some help in the below irule. Idea is to allow traffic to the VS if there is a custom header in the request. But i found out that there is NO default Pool assigned to the VS since there is a LTM Policy attached that is doing uri-based redirections to different Pools. What should i use instead of "pool default" to allow traffic?

 

when HTTP_REQUEST {

 

Check if http_header contains the custom header

if { [HTTP::header exists "Customheader"] and ([HTTP::header "Customeheader"] contains "CF53DD5F68BBFC30DFTG5A31A8A41B8AS") } { pool default

 

if neither value matches drop traffic

} else { drop } }

 

application delivery
iRules

8 Replies

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  • Yann_Desmarest_'s avatar
    Yann_Desmarest_
    Icon for Nacreous rankNacreous
    Apr 25, 2016

    Hello,

    You should use :

    pool /partition/pool_name

    or alternatively

    node ip_addr port_number

    • sandy16's avatar
      sandy16
      Icon for Altostratus rankAltostratus
      Apr 25, 2016
      Thanks Yann, idea is to pass the request if header is there and drop if not. I need to use something generic, like "accept" as the action. But that gives an error of undefined procedure. I dont need to be specific as mentioning the pool or node name as that contradicts the LTM policy applied to the vs.
  • Yann_Desmarest's avatar
    Yann_Desmarest
    Icon for Cirrus rankCirrus
    Apr 25, 2016

    Hello,

    You should use :

    pool /partition/pool_name

    or alternatively

    node ip_addr port_number

    • sandy16's avatar
      sandy16
      Icon for Altostratus rankAltostratus
      Apr 25, 2016
      Thanks Yann, idea is to pass the request if header is there and drop if not. I need to use something generic, like "accept" as the action. But that gives an error of undefined procedure. I dont need to be specific as mentioning the pool or node name as that contradicts the LTM policy applied to the vs.
  • Yann_Desmarest's avatar
    Yann_Desmarest
    Icon for Cirrus rankCirrus
    Apr 25, 2016

    Hello,

    You can do the following :

    when HTTP_REQUEST {
    if { [HTTP::header exists "Customheader"] and ([HTTP::header "Customheader"] contains  "CF53DD5F68BBFC30DFTG5A31A8A41B8AS") } {
         do nothing
    } else { 
        reject
    } 
}

    or you can negate the if condition :

    when HTTP_REQUEST {
    if { !([HTTP::header exists "Customheader"] and ([HTTP::header "Customheader"] contains  "CF53DD5F68BBFC30DFTG5A31A8A41B8AS")) } {
        reject
    } 
}
  • Yann_Desmarest_'s avatar
    Yann_Desmarest_
    Icon for Nacreous rankNacreous
    Apr 25, 2016

    Hello,

    You can do the following :

    when HTTP_REQUEST {
    if { [HTTP::header exists "Customheader"] and ([HTTP::header "Customheader"] contains  "CF53DD5F68BBFC30DFTG5A31A8A41B8AS") } {
         do nothing
    } else { 
        reject
    } 
}

    or you can negate the if condition :

    when HTTP_REQUEST {
    if { !([HTTP::header exists "Customheader"] and ([HTTP::header "Customheader"] contains  "CF53DD5F68BBFC30DFTG5A31A8A41B8AS")) } {
        reject
    } 
}