Hi! On Sun, Jun 14, 2015 at 2:12 PM Max Mertens <[email protected]> wrote:
> Hi everybody, > : > > I checked if I could test NAT traversal between my home router and > university's internet, however at the university each client gets an own > global IPv4 address with all ports open, so it is a Full Cone NAT type and > a trivial example of NAT traversal. > You're lucky :-) > Do you know if there are maybe some public NAT servers to test, or do you > have a NAT testing setup for P2PSP development, or is NAT simulation with > VMs and iptables enough? > For now, simulation is enough. However, as you thing, we should test the "definitive" solution in a real SYM scenario. I'm pretty sure that the University of Almería has one. Let me first check it and, if this is true, we'll try to run your code here. > Should I somewhere document the setup and iptables rules I am using, and > the resulting tables as above, to make the test reproducible (maybe as a > Readme in the repo)? > Yes. Please. > > Currently I am reading through a memo/RFC about "Symmetric NAT Traversal > using STUN" [2] which divides NATs not only in FCN, (P)RCN, SYM but in 9 > categories, depending on source port allocation and incoming packet > filtering. It also discusses methods to establish connections in the > "no"-cases above (PRCN <-> SYM and SYM <-> SYM) by port prediction, which I > would like to try out after implementing the NTS set of rules. > Good work! Regards, Vicente. > -- -- Vicente González Ruiz Depto de Informática Escuela Técnica Superior de Ingeniería Universidad de Almería Carretera Sacramento S/N 04120, La Cañada de San Urbano Almería, España e-mail: [email protected] http://www.ual.es/~vruiz tel: +34 950 015711 fax: +34 950 015486
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