Last Modified: Sep 06, 2019
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Known Affected Versions:
14.1.0, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 14.1.2
Opened: Sep 13, 2018
DNSX can no longer receive DNS NOTIFY messages on self ips.
DNSX acting as slave/secondary can no longer receive or process DNS NOTIFY messages via self ips.
User has configured DNSX as a DNS slave/secondary server that listens for DNS NOTIFY messages from a master DNS server.
If your infrastructure relies on DNS NOTIFY messages being sent to DNSX slave/seconadry servers via self ips, you will need to modify the configuration on their Master DNS server(s) and also on the BIG-IP with DNSX acting as a slave secondary. The Master needs to be configured to send DNS NOTIFY messages to either to a BIG-IP Virtual (UDP & TCP) with DNSX enabled on the associated DNS profile or configured to send to the management ip of the BIG-IP, or both. Note if using the management ip to recieve DNS NOTIFY for DNSX, you must enable this behavior by setting the dnsexpress.notifyport db variable to a port number besides zero.