nanog mailing list archives
Re: TCP and UDP Port 0 - Should an ISP or ITP Block it?
From: "Dobbins, Roland" <Roland.Dobbins () netscout com>
Date: Tue, 25 Aug 2020 16:21:29 +0000
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>
Current thread:
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it?, (continued)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Nick Hilliard (Aug 26)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? K. Scott Helms (Aug 26)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Jon Lewis (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Töma Gavrichenkov (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Töma Gavrichenkov (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Douglas Fischer (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Mel Beckman (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Matthew Petach (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Douglas Fischer (Aug 25)
- RE: TCP and UDP Port 0 - Should an ISP or ITP Block it? adamv0025 (Aug 25)