Celada:

First at all, i want it to be bidirecional. So shutdown() does not ser
+ve to me until now.

About your security question you have said that server does no require
+ authentication. It is not right, the server is running as port knock
+ing, in other words it does not open any port until it recieves (from
+ client) the correct sequence of udp packets (Net::RawIP and Net::Pca
+pUtils) from correct source ip:port(s). So it is a way of authenticat
+ion. Lately i will use some kind of user/password and SSL i guess.

Im still beginning to code it and i just can get over after fix these 
+bugs.
[download]

Thanks

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