nanog mailing list archives
Re: AWS issues with 172.0.0.0/12
From: Javier J <javier () advancedmachines us>
Date: Wed, 9 Oct 2019 21:46:40 -0400
I'm just curious, was the ip in the RFC 1918 172.16.0.0/16 range? https://tools.ietf.org/html/rfc1918 On Mon, Oct 7, 2019 at 6:01 PM Mehmet Akcin <mehmet () akcin net> wrote:
To close the loop here (in case if someone has this type of issue in the future), I have spoken to AT&T instead of trying to work it out with AWS Hosted Vendor, Reolink. AT&T Changed my public IP, and now I am no longer in that 172.x.x.x block, everything is working fine. mehmet On Thu, Oct 3, 2019 at 2:54 PM Javier J <javier () advancedmachines us> wrote:Auto generated VPC in AWS use RFC1819 addresses. This should not interfere with pub up space. What is the exact issue? If you can't ping something in AWS chances are it's a security group blocking you. On Tue, Oct 1, 2019, 7:00 PM Jim Popovitch via NANOG <nanog () nanog org> wrote:On October 1, 2019 9:39:03 PM UTC, Matt Palmer <mpalmer () hezmatt org> wrote:On Tue, Oct 01, 2019 at 04:50:33AM -0400, Jim Popovitch via NANOG wrote:On 10/1/2019 4:09 AM, Christopher Morrow wrote:possible that this is various AWS customers makingiptables/firewall mistakes?"block that pesky rfc1918 172/12 space!!"AWS also uses some 172/12 space on their internal network (e.g. thenetworkthat sits between EC2 instances and the AWS external firewalls)Does AWS use 172.0.0.0/12 internally, or 172.16.0.0/12? They're different things, after all.I don't know their entire operations, but they do use some 172.16.0.0/12 addresses internally. And yes, that is very different than 172/12, sorry for the confusion. -Jim P.
Current thread:
- Re: AWS issues with 172.0.0.0/12 Stephane Bortzmeyer (Oct 01)
- Re: AWS issues with 172.0.0.0/12 Christopher Morrow (Oct 01)
- Re: AWS issues with 172.0.0.0/12 Stephane Bortzmeyer (Oct 01)
- Re: AWS issues with 172.0.0.0/12 Jim Popovitch via NANOG (Oct 01)
- Re: AWS issues with 172.0.0.0/12 Matt Palmer (Oct 01)
- Re: AWS issues with 172.0.0.0/12 Jim Popovitch via NANOG (Oct 01)
- Re: AWS issues with 172.0.0.0/12 Javier J (Oct 03)
- Re: AWS issues with 172.0.0.0/12 Mehmet Akcin (Oct 07)
- Re: AWS issues with 172.0.0.0/12 Javier J (Oct 09)
- Re: AWS issues with 172.0.0.0/12 Mehmet Akcin (Oct 10)
- Re: AWS issues with 172.0.0.0/12 Javier J (Oct 10)
- Re: AWS issues with 172.0.0.0/12 Neil Hanlon (Oct 10)
- Re: AWS issues with 172.0.0.0/12 Javier J (Oct 10)
- Re: AWS issues with 172.0.0.0/12 Jay Borkenhagen (Oct 11)
- Re: AWS issues with 172.0.0.0/12 Javier J (Oct 21)
- Re: AWS issues with 172.0.0.0/12 Christopher Morrow (Oct 01)