Wisdom of using 100.64/10 (RFC6598) space in an Amazon VPC deployment

[ekgermann at cctec.com (Eric Germann)]

Mulling over the implications of this.

[root at ip-100-64-0-55 ~]# traceroute s3.amazonaws.com
traceroute to s3.amazonaws.com (54.231.0.64), 30 hops max, 60 byte packets
 1  ec2-79-125-0-202.eu-west-1.compute.amazonaws.com (79.125.0.202)  1.068 ms  0.824 ms  0.787 ms
 2  178.236.1.18 (178.236.1.18)  1.193 ms  1.164 ms  0.869 ms
 3  * * *
 4  54.239.41.133 (54.239.41.133)  76.046 ms  76.029 ms  75.986 ms
 5  54.239.41.166 (54.239.41.166)  76.314 ms  76.281 ms  76.244 ms
 6  72.21.220.77 (72.21.220.77)  76.143 ms  76.054 ms  76.095 ms
 7  205.251.245.224 (205.251.245.224)  76.346 ms 72.21.222.149 (72.21.222.149)  76.261 ms 205.251.245.230 (205.251.245.230)  76.360 ms
 8  * * *
...
30  * * *

but, 

[root at ip-100-64-0-55 ~]# wget https://s3.amazonaws.com
--2015-02-24 04:20:18--  https://s3.amazonaws.com/
Resolving s3.amazonaws.com... 54.231.12.48
Connecting to s3.amazonaws.com|54.231.12.48|:443... connected.
HTTP request sent, awaiting response... 307 Temporary Redirect
Location: http://aws.amazon.com/s3/ [following]
--2015-02-24 04:20:18--  http://aws.amazon.com/s3/
Resolving aws.amazon.com... 54.240.250.195
Connecting to aws.amazon.com|54.240.250.195|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: â??index.html.1â??

    [    <=>                                                                                            ] 179,606      158K/s   in 1.1s

2015-02-24 04:20:20 (158 KB/s) - â??index.html.1â?? saved [179606]

ICMP would break from the intermediates, but ICMP from the API endpoint should still work.  Will have to chew on this a bit overnight.

EKG


> On Feb 23, 2015, at 9:03 PM, Blair Trosper <blair.trosper at gmail.com> wrote:
> 
> Might be ill-advised since AWS uses it themselves for their internal networking.  Just traceroute to any API endpoint from an EC2/VPC resource or instance.  :)
> 
> On Mon, Feb 23, 2015 at 2:43 PM, MÃ¥ns Nilsson <mansaxel at besserwisser.org <mailto:mansaxel at besserwisser.org>> wrote:
> Subject: Wisdom of using 100.64/10 (RFC6598) space in an Amazon VPC deployment Date: Mon, Feb 23, 2015 at 10:02:44AM -0500 Quoting Eric Germann (ekgermann at cctec.com <mailto:ekgermann at cctec.com>):
> > Currently engaged on a project where theyâ??re building out a VPC infrastructure for hosted applications.
> 
> <snip>
> 
> > Thoughts and thanks in advance.
> 
> using the wasted /10 for this is pretty much equal to using RFC1918 space.
> 
> IPv6 was invented to do this right.
> 
> --
> MÃ¥ns Nilsson     primary/secondary/besserwisser/machina
> MN-1334-RIPE                             +46 705 989668 <tel:%2B46%20705%20989668>
> It's NO USE ... I've gone to "CLUB MED"!!
>