iRule giving error: rule [/common/ecs_rule] error: /common/ecs_rule:6: error: [undefined procedure:

bindummawat I found some odd formating such as spaces around variables and events which I have adjusted. Try this iRule and see if you receive the same or another error. If you do receive an error please post it here.

when DNS_REQUEST {

    if { [DNS::edns0 exists] } {

        # log local0. [DNS::edns0 subnet address]"
        set ecs_address [DNS::edns0 subnet address]

        if { ${ecs_address} == "172.31.177.0" } {
            log local0. "Received EDNS request from [IP::client_addr]:${ecs_address}"
            host 172.30.112.9
        } else {
            log local0. "Received EDNS request from [IP::client_addr]:${ecs_address}"
            host 172.30.112.8
        }

    }

}