Re: [GNUnet-developers] Volunteers Needed

[Christian Grothoff]

Dear John,

You might want to explain what you are exactly measuring and why. (It
looks like symmetric vs. asymmetric NAT, but you don't say why. It also
seems like this might have been done before by various research groups.)

Furthermore, everybody 'saving' the results won't help you. You should
either at least ask them to send the result to you, or better implement
a submit function inside of your code. Doing an HTTP POST isn't that
complicated, and if you can of course have the user confirm the
submission with a simple y/n question if you're worried about consent.

My 2 cents

Christian

On 09/10/2015 12:44 AM, John Michael Lafayette wrote:
> Dear GNU-NET,
> 
> I need people to help me get data on large scale NAT. The task is simple.
> In the Google Drive link here (
> https://drive.google.com/folderview?id=0B1IimJ20gG0SaU9VVGxTVWR4dnc&usp=sharing
> ), there are two java files. They both make a server respond with your ip
> address and port.
> 
> Experiment1.java measures changes in port # with one outgoing address.
> Experiment2.java measures changes in port # across two different outgoing
> addresses. Run these two files and save the output. I need people to run
> these files on different large scale NATs, especially 2/3/4G.
> 
> There's also a C file (nat depth measurer). The code is based off
> traceroute / tracepath - it sends UDP packets and gets back ICMP replies.
> It should estimate how many layers of NAT//router/ISP you have to hop
> through before reaching the public internet. If you could ignore the
> commented out stuff and review the code I would appreciate it.
> 
> Thank you!
> 
> Appendix:
> 
> With Experiment1.java, if your port and ip do not change based on outgoing
> port #, terminal output will look like this...
> 
> $ java Experiment1
> On iteration 0: /128.227.4.85:8000
> On iteration 1: /128.227.4.85:8000
> On iteration 2: /128.227.4.85:8000
> ...
> 
> With Experiment2.java, if your port and ip do not change based on outgoing
> address, terminal output will look like this...
> 
> $ java Experiment2
> ...
> Outgoing port: 8000 public ip/port: /128.227.11.255:8000
> Outgoing port: 8000 public ip/port: /128.227.11.255:8000
> ...
> 
> 
> 
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