hole punching behind proxy? possiable?

i have a question

im using Uni network which is blocked for outside ports incomming and outgoing (except few outgiong ports like HTTP HTTPS MAIL etc) i managed to find a quick Proxy to connect to outside ports! but now i have no incomming connections (since the incomming ports are blokced as well) is there a way to use hole punching trough proxy? to bypass the nat block? or any other way (no i cant forward ports from my proxy ... )

tnx in advance

Er

Teredo/IPv6 and uTP peers and seeds have some hole punching capabilities, but they're only available in the latest versions of uTorrent. uTP hole punching is only available in v2.0 betas, Teredo has been available since v1.8.0.

so how do i use it? i just need to use the beta of utorrent and hope im coneccting to other betas?

You have to check that Teredo/IPv6 is activated. There's many reasons why it may fail.

Even uTP peer/seed connections could be block as well, since they use UDP packets which the proxy may NOT handle or not be forwarding correctly.

where is the option to check

and i did a little research about the hole punching subject and id read it can be used on tcp as well

right?

so how come it must use udp?

TCP hole punching is near-impossible.

For more details about uTP:

http://forum.utorrent.com/viewtopic.php?id=49813

http://forum.utorrent.com/viewtopic.php?id=60602

(first posts of both threads)