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bindummawat's avatar
bindummawat
Icon for Altostratus rankAltostratus
Sep 28, 2023

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

Hi  I am trying to run a setup with GTM. Here I have ECS enabled on client requesting DNS query. Behind F5 I have 2 DNS server configured. Now I can see the packet recived by F5 has client subnet i...
application delivery
Paulius's avatar
Paulius
Icon for MVP rankMVP
Sep 28, 2023

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
        }

    }

}

 

  • bindummawat's avatar
    bindummawat
    Icon for Altostratus rankAltostratus
    Sep 28, 2023

    The same works under GSLB-iRules but did not work Delivery-iRules.

    But I found another solution using node <ip> <port> and that worked for my requirement.

    Thanks