nanog mailing list archives
Re: Comcast residential DNS contact
From: Christopher Morrow <morrowc.lists () gmail com>
Date: Wed, 3 Dec 2014 13:37:06 -0500
On Wed, Dec 3, 2014 at 12:54 PM, Grant Ridder <shortdudey123 () gmail com> wrote:
Hi Everyone, Thanks for the replies! After reading them, i am doing some digging into DNS RFC's and haven't found much with respect to ANY queries. Not responding with full results to protect against being used in an attack makes sense. However, I find it odd that only 1 of the 4 anycast servers I tried would institute this.
it's possible (jason hinted at this) that the servers in question are not a homogeneous software set... and have different behaviour being displayed because of that. Also, just because you sent a packet to 4 different ip addresses doesn't mean that they didn't end up on one or some of the same hosts behind loadbalancers/ecmp/etc, right? (so it's not clear you are/can test this properly from your vantage point) -chris (what's a bit concerning is my comcast link's not able to talk to cdns02 at all... over ipv4 at least, v6 works, thankfully I suppose)
Current thread:
- Re: Comcast residential DNS contact, (continued)
- Re: Comcast residential DNS contact Jared Mauch (Dec 03)
- Re: Comcast residential DNS contact Stephen Satchell (Dec 03)
- Re: Comcast residential DNS contact Jared Mauch (Dec 03)
- Re: Comcast residential DNS contact Brian Rak (Dec 03)
- Re: Comcast residential DNS contact Grant Ridder (Dec 03)
- Re: Comcast residential DNS contact Grant Ridder (Dec 03)
- Re: Comcast residential DNS contact Doug Barton (Dec 03)
- Re: Comcast residential DNS contact Grant Ridder (Dec 03)
- Re: Comcast residential DNS contact Mark Andrews (Dec 03)
- Re: Comcast residential DNS contact Andrew Sullivan (Dec 03)
- Re: Comcast residential DNS contact Christopher Morrow (Dec 03)
- Re: Comcast residential DNS contact Scott Helms (Dec 03)
- Re: Comcast residential DNS contact Livingood, Jason (Dec 03)