nanog mailing list archives
Re: DNS noise
From: Jared Mauch <jared () puck nether net>
Date: Fri, 6 Apr 2012 16:49:48 -0400
On Apr 6, 2012, at 4:44 PM, David Conrad wrote:
However, I would be interested in hearing what the excuses are for folks not implementing BCP38 these days.
Easy: 1) hardare support varies 2) implementing bcp-38 drives customer support costs up in cases where the customer is doing something weird "e.g.: using toms isdn-dial backup to source return packets". 3) customers can't be trusted to give a complete list of valid source addresses 4) asymmetric or highly kinky routing exists more than one would like to admit There are cases where it's fairly inexcusable: Fixed broadband providers (static IP address or dynamic to a customer port/pool) CGN exit points Static routed customers (They shouldn't be doing asymmetric routing) The real reason imho.. is #2 above. desire to keep unnecessary support calls from your call center. - Jared
Current thread:
- DNS noise Nathan Eisenberg (Apr 06)
- Re: DNS noise Keegan Holley (Apr 06)
- Re: DNS noise Michael Sinatra (Apr 06)
- Re: DNS noise PC (Apr 06)
- Re: DNS noise Jimmy Hess (Apr 06)
- Re: DNS noise Nick Hilliard (Apr 06)
- Re: DNS noise Jimmy Hess (Apr 06)
- Re: DNS noise David Conrad (Apr 06)
- Re: DNS noise Jimmy Hess (Apr 06)
- Re: DNS noise David Conrad (Apr 06)
- Re: DNS noise Jared Mauch (Apr 06)
- Re: DNS noise Jimmy Hess (Apr 06)
- Re: DNS noise Keegan Holley (Apr 06)
- <Possible follow-ups>
- Re: DNS noise Joe St Sauver (Apr 06)