nanog mailing list archives
TCP and UDP Port 0 - Should an ISP or ITP Block it?
From: Douglas Fischer <fischerdouglas () gmail com>
Date: Tue, 25 Aug 2020 08:13:36 -0300
I think that the subject of the e-mail is very self-explanatory. 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. I can think of a genuine use of it. (Maybe someone cloud help me see what I'm not seen.) So I have two questions: a) Should an ISP block that Kind of traffic? (like anti-spoofing on BNG/B-RAS) b) Should a Transit Provider block that Kind of traffic? -- Douglas Fernando Fischer Engº de Controle e Automação
Current thread:
- 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? K. Scott Helms (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Job Snijders (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? K. Scott Helms (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Mike Hammett (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Pim van Stam (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? Job Snijders (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? K. Scott Helms (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Job Snijders (Aug 25)
- Message not available
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? John Kristoff (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? Tom Beecher (Aug 25)
- Re: TCP and UDP Port 0 - Should an ISP or ITP Block it? K. Scott Helms (Aug 25)