nanog mailing list archives
Re: Open Resolver List, New Orleans, etc..
From: Jon Lewis <jlewis () lewis org>
Date: Thu, 9 May 2013 19:32:11 -0400 (EDT)
On Thu, 9 May 2013, Jared Mauch wrote:
Some interesting data: about 46% of the IPs that respond to a DNS query do not respond from port 53, meaning they are "broken" in some interesting way.
Maybe I'm not being very imaginative, but how can something from !53 be considered a DNS response to a query sent to port 53? Can you give some examples of the sorts of packets that fall into this rather large % of ill-behaved hosts? Are you sure you're not treating things like icmp port unreachable as a "!udp/53 src response"?
---------------------------------------------------------------------- Jon Lewis, MCP :) | I route | therefore you are _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
Current thread:
- Open Resolver List, New Orleans, etc.. Jared Mauch (May 09)
- Re: Open Resolver List, New Orleans, etc.. Jon Lewis (May 09)
- Re: Open Resolver List, New Orleans, etc.. Jared Mauch (May 09)
- Re: Open Resolver List, New Orleans, etc.. Jimmy Hess (May 09)
- Re: Open Resolver List, New Orleans, etc.. Jared Mauch (May 09)
- Re: Open Resolver List, New Orleans, etc.. Jon Lewis (May 09)