Multiple method persistence

You can write iRule to set source address or cookie persistence for authentication requests and attach it to the vip.

when HTTP_REQUEST { 
	switch -glob [string tolower [HTTP::uri]] {
	"/shibboleth.sso*" 
	{
	   persist source_addr 255.255.255.255 3600
    }
	default {
           return
	}
    }
}

when HTTP_REQUEST { 
	switch -glob [string tolower [HTTP::uri]] {
	"/shibboleth.sso*" 
	{
	  persist cookie insert "ssocookie" 3600
    }
	 default {
          return
      }
 }  
}