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@xxxxxxxx [mailto:ietf-bounces@xxxxxxxx] On Behalf Of Lars Eggert Sent: Wednesday, June 02, 2010 6:37 PM To: ietf@xxxxxxxx Discussion Cc: nat-study@xxxxxxxxxxxxx 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@xxxxxxxxxxxxxx We're also interested in obtaining a DSLAM and a CMTS. Thanks, Lars _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf