My Brocade SAN switches are making use of the built in firewall 'ipfilter' to block incoming connections to the switches on a broad range of ports. The rules as defined is shown in the below screenshot:
In my SAN Switch error logs I see a constant flow of messages similar to the below message coming from every NetApp Filer connected to the SAN via Fiber:
Does anyone know how/why the NetApp is doing this or what it is for? Ideally knowing the specific port it is trying to connect to and the reason would be most helpful.
2013/04/16-10:03:55, [SEC-3039], 658853, SLOT 6 | FID 128, INFO, DCX-JEFF-PRD-01, Event:Securty Violation , Status: failed, Info: Unauthorized host with IP address 172.19.92.87 tries to establish connection using UDP violation-port 0:32767.