APM clientless mode

i don't believe there is anything official, it is mentioned on dev central a few times (google for clientless mode site:f5.com), but beyond that i haven't seen any formal documentation.

the basics is just that it disables the redirect to my.policy page and you have to somehow pick up the login details yourself.

There is no official document about it. Multiple support case were opened to ask documents...

clientless mode is a feature that :

• disable redirect to my.policy page as told boneyard
• disable interactive boxes in VPE (logon pages, 401 response, ...)

the main goal is to allow non interactive user agent to pass through APM.

To use clientless mode, you need to add HTTP Header clientless-mode with value 1 in HTTP_REQUEST event

The clientless mod limit uploads to 64K, this limit can be change since version 11.5

to use it, you can look example in default active sync irule or in devcentral questions.

"this still cannot be configured with a "configuration variable" in the VPE? Any clue when that will be possible (RFE...)?"

I don't believe that's ever been asked for. You're welcome to open a support case and request it though. The clientless-mode header is a "flag" that is sent to the APM filter processor before it starts a new session (initiated by the 302 redirect), and there are absolutely reasons why you'd want to be able to enable and disable this dynamically in a single VIP. For example, versions of the Exchange iApp/iRules use clientless-mode for different agent and application types. And for what it's worth, the iRule code is pretty simple:

when HTTP_REQUEST {
    HTTP::header insert "clientless-mode" 1
}

hi

I've opened a RFE to have the clientless mode be configured as a configuration variable (or action) in the VPE. That will bring more flexibility and the irule not necessary.

Here the details:

ID 546245: Enable Clientless-mode in VPE

Feel free to open a case and link it to this RFE ID to help "speed up" the implementation 😉

Alex