Forum Discussion

Nimbostratus

Jun 07, 2018

Logging X-Forwarded ip address on ltm logs via irule.

Hi Team, Im in a situation where have tried almost all the ways to log the X-forwarded ip address on the LTM logs ,well so far no success. Have used the below irule - It is still picking the physical...

application delivery

LTM

leonline_225556

Altostratus

Jun 07, 2018

Hi Jibinpv,

You have used HTTP:Header which should be HTTP::header. So please use [HTTP::header X-Forwarded-For]

Try this iRule to get all the HTTP request headers in /var/log/ltm

when HTTP_REQUEST 
{
    log local0. "============================================="
    foreach arrayHeaders [HTTP::header names] 
    {
        log local0. "$arrayHeaders: [HTTP::header value $arrayHeaders]"
    }
    log local0. "============================================="
}

Jibinpv
Nimbostratus
Jun 07, 2018
Hi Leoline,

Apologies ,that was a typo from me while copy pasted here. The actual config includes [HTTP::header X-Forwarded-For]. Also I have tried the suggest irule too which given me a TCL error.

TCL error: - can't read "arrayHeaders": no such variable while executing "log local0. "$arrayHeaders: [HTTP::header value $arrayHeaders]
leonline_225556
Altostratus
Jun 07, 2018
Hi Jibinpv,

Which version are you running? Are you using a standard vs with http profile enabled?
Sunny_291145
Nimbostratus
Jun 07, 2018
You can replace arrayHeaders with aHeader

Which looks like

when HTTP_REQUEST { log local0. "=============================================" foreach aHeader [HTTP::header names] { log local0. "$aHeader: [HTTP::header value $aHeader]" } log local0. "=============================================" }