Simple iRule For DNS Intercept on Big IP DNS

If you wanted to do a DataGroup - I took @youssef's code and modified it to use DG. Your DG would need to be the string format as well as exist before you create the irule. Works like a champ for me.

when DNS_REQUEST {

set type [DNS::question type]

if {$type equals "A" } {
    set host [DNS::question name]
    if { [class match $host equals dns_List_DG ] } {
        DNS::answer clear
        DNS::answer insert "[DNS::question name]. 111 [DNS::question class] [DNS::question type] [class match -value $host equals dns_List_DG ]"
        DNS::return
    }
}
}