nanog mailing list archives
Re: TWC (AS11351) blocking all NTP?
From: William Herrin <bill () herrin us>
Date: Tue, 4 Feb 2014 15:01:09 -0500
On Tue, Feb 4, 2014 at 2:48 PM, Majdi S. Abbas <msa () latt net> wrote:
Are you willing to warrant the source, destination and lawful purpose of every single frame exiting your network?
Yes, no and no respectively. As a BGP leaf node, I can guarantee that no packets leave my network from a source address that isn't mine. The destination I can't control -- my software will respond to any apparently legitimate external query. As for legal, even if I'm fortunate enough to never have a customer hijacked into a botnet, there are a vast number of legal systems in the world and no practical way to be sure that a given communication is legitimate in all of them. But by golly I have total control over the source address in packets leaving my network. Regards, Bill Herrin -- William D. Herrin ................ herrin () dirtside com bill () herrin us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
Current thread:
- Re: BCP38 [Was: Re: TWC (AS11351) blocking all NTP?], (continued)
- Re: BCP38 [Was: Re: TWC (AS11351) blocking all NTP?] Mark Tinka (Feb 05)
- Re: BCP38 [Was: Re: TWC (AS11351) blocking all NTP?] Jay Ashworth (Feb 05)
- Re: TWC (AS11351) blocking all NTP? William Herrin (Feb 04)
- Re: TWC (AS11351) blocking all NTP? Jared Mauch (Feb 04)
- Re: TWC (AS11351) blocking all NTP? Jay Ashworth (Feb 04)
- Re: TWC (AS11351) blocking all NTP? Michael Smith (Feb 06)
- Re: TWC (AS11351) blocking all NTP? Doug Barton (Feb 04)
- Re: TWC (AS11351) blocking all NTP? William Herrin (Feb 04)
- Re: TWC (AS11351) blocking all NTP? Christopher Morrow (Feb 04)
- Re: TWC (AS11351) blocking all NTP? Majdi S. Abbas (Feb 04)
- Re: TWC (AS11351) blocking all NTP? William Herrin (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? John Levine (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? Paul Ferguson (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? Chuck Anderson (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? William Herrin (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? Octavio Alvarez (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? John R. Levine (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? William Herrin (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? John Levine (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? Mark Andrews (Feb 04)
- Re: BCP38 is hard, was TWC (AS11351) blocking all NTP? Randy Bush (Feb 04)