nanog mailing list archives
Re: Filter NTP traffic by packet size?
From: Niels Bakker <niels=nanog () bakker net>
Date: Fri, 28 Feb 2014 17:47:20 +0100
Who knows, when CGNs become commonplace we'll start to run out of ephemeral ports and we'll have to start using ports < 1024 too. Would be a shame if their use were impeded by old ACLs lying around.is there any modern utility in chargen?
* randy () psg com (Randy Bush) [Fri 28 Feb 2014, 17:23 CET]:
woah! i did not suggest acls. i was assuming that one just disables the 'service'.
Oh, I'm sorry! I honestly thought this thread was about filtering as a way of mitigating abuse.
Yes, of course one should not run the service, especially not UDP. -- Niels.
Current thread:
- Re: Managing ACL exceptions (was Re: Filter NTP traffic by packet size?), (continued)
- Re: Managing ACL exceptions (was Re: Filter NTP traffic by packet size?) Ray Soucy (Feb 28)
- Re: Managing ACL exceptions (was Re: Filter NTP traffic by packet size?) Jay Ashworth (Feb 28)
- Re: Managing ACL exceptions (was Re: Filter NTP traffic by packet size?) Christopher Morrow (Feb 28)
- Re: Filter NTP traffic by packet size? Valdis . Kletnieks (Feb 26)
- Re: Filter NTP traffic by packet size? Jared Mauch (Feb 26)
- Re: Filter NTP traffic by packet size? Randy Bush (Feb 26)
- Re: Filter NTP traffic by packet size? Frank Habicht (Feb 26)
- Re: Filter NTP traffic by packet size? Jimmy Hess (Feb 26)
- Re: Filter NTP traffic by packet size? Niels Bakker (Feb 28)
- Re: Filter NTP traffic by packet size? Randy Bush (Feb 28)
- Re: Filter NTP traffic by packet size? Niels Bakker (Feb 28)
- Re: Filter NTP traffic by packet size? Robert Drake (Feb 26)
- Re: Filter NTP traffic by packet size? Keegan Holley (Feb 27)
- Re: Filter NTP traffic by packet size? Jimmy Hess (Feb 26)
- Re: Filter NTP traffic by packet size? Robert Drake (Feb 26)
- Re: Filter NTP traffic by packet size? Cb B (Feb 25)
- Re: Filter on IXP Jérôme Nicolle (Feb 28)
- Re: Filter on IXP Jay Ashworth (Feb 28)
- Re: Filter on IXP Jérôme Nicolle (Feb 28)
- Re: Filter on IXP Randy Bush (Feb 28)
- Re: Filter on IXP Jérôme Nicolle (Feb 28)