Sarah_258804
May 09, 2016Cirrus
Can I change the default ephemeral ports that the F5 uses for health monitoring?
Currently I see that my F5 is reaching out to the servers in my server pools on low ephemeral ports for health monitoring. For example, I have a health monitor for DNS so that the F5 reaches out to the DNS servers to ensure that DNS is working properly. The source port coming from the F5 has a huge range from sometimes 7000 up to 65535. We are trying to standardize the ephemeral ports used in our datacenter to use the standard Microsoft ephemeral ports, 49152 - 65535 for ACI filtering.
Can I manually change which ports the F5 uses to send requests on? I know we are currently doing this with Linux servers, so I'd like to do it with the F5s as well.