Blocking specific "USER AGENT" version and lower by iRule

Hi Sys-team,

I'm afraid, you can't block user-agents by using a "version < X" syntax. You have to block them one-by-one by using

-glob

wildcard matches.

Example to block Internet Explorer below v11:

when HTTP_REQUEST {
    switch -glob -- [HTTP::header value "User-Agent"] "*MSIE 2*" - "*MSIE 3*" - "*MSIE 4*" - "*MSIE 5*" - "*MSIE 6*" - "*MSIE 7*" - "*MSIE 8*" - "*MSIE 9*" - "*MSIE 10*" {
        HTTP::respond 200 content "Unsupported Brwoser"
    }
}

Note: A great source for user-agent string values can be found here... http://www.useragentstring.com/pages/useragentstring.php

Cheers, Kai

Hi,

 

you will be able to do it when: * split HTTP User-Agent string into tcl list * for given set of Browsers (like Chrome) parse version list element to a float: version.minor_version * use <= on such a data, even using a data-group holding rules definitions:

 

Chrome := 26.0

 

Firefox := 27.1