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Re: wanted: your old NAT home router

2010-06-03 03:29:00
It would be really nice to get one of the consumer PC rags to pick up this 
story - an easy-to-interpret compliance label would be even better. If the 
consumer rags would refuse to recommend a non-compliant box, maybe vendors have 
some incentive to read the RFCs.

I assume IPv6 tests are planned?

This illustrates that the Internet experience will be increasingly driven by 
the laziness of equipment vendors, rather than anything the IETF can 
standardize. There does not appear to be any functioning feedback loop to 
accelerate convergence to reasonable behavior.

Henning

On Jun 3, 2010, at 3:53 AM, Yoav Nir wrote:

Hi Lars

Great study. Looking forward to seeing more devices there.

Two tests I would add to this:

1. TCP segment size negotiation - have a low-MTU link somewhere between the 
NAT box and the server, and see if the MSS gets adjusted like it should.

2. IKE/IPsec - IKE was supposed to go from port 500 to port 500. Some older 
routers made heroic efforts to translate the traffic so that the source port 
remains 500, which may have killed more sessions than it saved. These days, 
NAT Traversal makes this easier. I suggest connecting some IKE/IPsec client 
(like the Microsoft or Mac OS L2TP client) to some server through the NAT.

-----Original Message-----
From: ietf-bounces(_at_)ietf(_dot_)org 
[mailto:ietf-bounces(_at_)ietf(_dot_)org] On Behalf Of Lars Eggert
Sent: Wednesday, June 02, 2010 6:37 PM
To: ietf(_at_)ietf(_dot_)org Discussion
Cc: nat-study(_at_)fit(_dot_)nokia(_dot_)com
Subject: Re: wanted: your old NAT home router

Hi,

FYI, a first report with test results for 34 devices is available 
athttp://fit.nokia.com/lars/tmp/2010-hgw-study.pdf. Slides that summarize the 
results are at http://fit.nokia.com/lars/tmp/2010-hgw-study-slides.pdf.

We have received another 30-odd devices as donations, which we'll add to the 
testbed and include in a follow-up study.

If you have an unused, spare home gateway to donate to this effort, please 
contact us at nat-study(_at_)fit(_dot_)nokia(_dot_)com(_dot_) We're also 
interested in obtaining a DSLAM and a CMTS.

Thanks,
Lars

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