Re: TCP and UDP Port 0 - Should an ISP or ITP Block it?

On 25 Aug 2020, at 18:13, Douglas Fischer <fischerdouglas@gmail.com> wrote:

With some analysis of what is running over our network, ISP or ITP, we will be able to see some TCP/UDP(mostly UDP) packets with source or destination to port 0.

Are you certain that the UDP packets exhibit port 0, or is this flow telemetry reporting non-initial fragments as port 0 (they don’t actually have ports). -------------------------------------------- Roland Dobbins <roland.dobbins@netscout.com>