BIGIP DNS forwarder

Good day, This question seems to be coming up alot lately. I tried this on my DNS system and it worked for me. Can you give this a try?

1. Log into Gui
2. Select the zone "abc.com."
3. Select 'Resource Records'
4. Click the 'Create' button to add the glue 'A' RR for the delegation server.
5. Adjust the 'Record Configuration' values

    a. 'Name' should be set to the name of the DNS server authoritative for test123.abc.com

        NOTE: This should be the FQDN of the host

        ex. ns1.test123.abc.com.

    b. 'TTL' should be set to a reasonable value, say '500'
    c. Set 'Type' to 'A'
    d. Set 'IP Address' to the remove DNS server
    e. Click 'Finished' button

6. Click the 'Create' button to add the 'NS' RR for the delegation server.
7. Adjust the 'Record Configuration' values

    a. 'Name' should be set to the name of the delegated domain, "test123.abc.com."

        NOTE: Make sure this is the domain, not the host

    b. 'TTL' should be set to a reasonable value, say '500'
    c. Set 'Type' to 'NS'
    d. Set 'Nameserver' to the name used in step 7 above.

        ex. ns1.test123.abc.com.

    e. Click 'Finished' button

8. Query the GTM listener for a resource record known only by the delegated DNS server, say test1.test123.abc.com.

9. Enable recursion if you want the local BIND server to do all the work.  Disable recursion if you want the local BIND to only return the referral.

Hope you find this helpful.