Redirect based on user browser (mobile)

I can try to give a quick overview but there are folks here that know way more than I 😄

So to get started with iRules you should definitely check out the iRules homepage:

http://devcentral.f5.com/wiki/default.aspx/iRules.HomePage

To give you a quick rundown of this rule in particular, here is the flow:

While the transaction is in the HTTP_REQUEST state, as opposed to HTTP_RESPONSE or some other state. this rule will be run.

The 'if' statement will grab the HTTP::host and make it all lowercase for the comparison, so there is no difference between My.com, MY.com or my.com.

The switch will look at the User-Agent portion of the HTTP::header, you can use several options:

http://devcentral.f5.com/wiki/default.aspx/iRules/switch.html

Glob basically allows the use of some wildcards, so "*BlackBerry*" will match anything that contains "BlackBerry". So the following will look for UserAgents that match, and then use mobile_pool at the end.

  switch -glob [HTTP::header User-Agent] {
   "*BlackBerry*" -
   "*Blackberry*" -
   "*Java/1.4.1_02*" -
   "*Blazer*" -
   "*blazer*" -
   "*palm*" -
   "*Palm*" -
   "*SMARTPHONE*" -
   "*Smartphone*" -
   "*smartphone*" -
   "*Danger*" -
   "*hiptop*" -
   "*MOT-*" -
   "*RAZR*" -
   "*AUDIOVOX*" -
   "*Symbian*" -
   "*symbian*" -
   "*NOKIA*" -
   "*Nokia*" -
   "*Sony Ericsson*" -
   "*Samsung*" -
   "*LG 8*" -
   "*Alcatel 735i*" -
   "*Nextel*" -
   "*Windows CE*" -
   "*NetFront*" { 
    pool mobile_pool
   }
  } 

If nothing above matches, we look for the Accept portion of the header, if it contains "*text/vnd.wap.wml*" then it will go to the mobile_pool

  switch -glob [HTTP::header Accept] {
   "*text/vnd.wap.wml*" { 
    pool mobile_pool
   }
  }

If none of the above matches, it either follows the remaining rules or whatever is set in the profile, which could be a default pool.